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Nutrition Final Exam
Nutrition at KCC
231
Nutrition
Intermediate
12/04/2025

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Cards

Term
Nutrient:
Definition
a substance that provides nourishment essential for growth and maintenance of life
Term
What are the four macronutrients?
Definition
Carbohydrates, proteins, lipids, water
Term
What are the categories of micronutrients?
Definition
Vitamins and minerals
Term
What are some of the functions of nutrients?
Definition
Provide energy, promote growth and development, regulate body processes
Term
What elements are carbohydrates composed of?
Definition
Carbon, hydrogen, and oxygen
Term
What is an example of a simple carbohydrate?
Definition
Table sugar
Term
What is an example of a complex carbohydrate (polysaccharide)?
Definition
Starch (in grains) and glycogen (in animals)
Term
Triglycerides:
Definition
major form of fat in food, key energy source, and fat storage in body
Term
What are triglycerides made up of?
Definition
Fatty acids and glycerol
Term
What are the two essential fatty acids?
Definition
Linoleic acid and alpha-linoleic acid
Term
What are proteins composed of?
Definition
Carbon, hydrogen, oxygen, and nitrogen
Term
What are some functions of protein?
Definition
Major part of bone and muscle, component in blood, cell membranes, enzymes, and immune factors
Term
_____ is the macronutrient required in the largest quantity.
Definition
Water
Term
Do we produce water through metabolism?
Definition
Yes
Term
What are some functions of water?
Definition
Lubricant, solvent, transportation medium, regulates body temperature
Term
Vitamins enable _____ _____ and provide no usable _____.
Definition
chemical reactions, energy
Term
Which vitamins are water soluble?
Definition
C and B complex
Term
Which vitamins are fat soluble?
Definition
A, D, E, and K
Term
_____ soluble vitamins are stored in the body more easily than _____ soluble vitamins.
Definition
Fat, water
Term
Minerals:
Definition
inorganic compounds required for body functions
Term
What are the major minerals?
Definition
Sodium, potassium, chloride, calcium, and phosphorus
Term
What are the trace minerals?
Definition
Iron, zinc, copper
Term
Phytochemicals:
Definition
plant foods (vegetables, fruits, whole grains)
Term
Zoochemicals:
Definition
foods of animal origin (fish)
Term
Calorie:
Definition
 the amount of heat energy required to raise the temperature of one gram of water 1°C
Term
How does our body utilize energy-containing nutrients?
Definition
Build new compounds, perform muscular movements, promote nerve transmissions, maintain ion balance within cells
Term
What percent of the population group do EARs meet the needs of?
Definition
5%
Term
What percent of the population group do RDAs meet the needs of?
Definition
97-98%
Term
Nutrient density:
Definition
a measure of the nutrient a food provides compared to its energy content
Term
Who are the exceptions to DV standards?
Definition
Infants, toddlers, pregnant and lactating women
Term
How often should children work out?
Definition
Every day, 60 minutes, moderate and vigorous
Term
How often should adults work out?
Definition
Weekly, 150 minutes of moderate or 75 minutes of vigorous
Term
How often should older adults work out?
Definition
Weekly, 150 minutes of moderate or 75 minutes of vigorous
Term
Basal metabolic rate:
Definition
calories needed to sustain life without activity
Term
The WHO estimates that _____ billion people are overweight or obese
Definition
2
Term
What can lead to malnutrition in the developing world?
Definition
Seasonal hunger, conflict and war, and environmental disasters
Term
What are some things that are allowed in organic farming?
Definition
Biological pest management, composting, manure applications, and crop rotations
Term
What are some things that are not allowed in organic farming?
Definition
Synthetic pesticides, fertilizers, and hormones, antibiotics, sewage sludge, genetic engineering, and irradiation
Term
What are some uses of biotechnology?
Definition
Pest and weed control, disease prevention in plants, and increased crop yields.
Term
What are some food preservation methods?
Definition
Pasteurization, sterilization, canning, aseptic processing, refrigeration, freezing, nitrogen packing, food irradiation, and the use of food additives
Term
Digestion:
Definition
process of breaking down foods into a form the body can use
Term
Absorption:
Definition
uptake of nutrients from the GI tract into the blood or lymph
Term
What are the human tissues that are related to digestion?
Definition
Epithelial, connective, muscle, and nervous
Term
Peristalsis is the ring of _____ propelling material along the _____ _____.
Definition
contraction, GI tract
Term
Segmentation is the back-and-forth action that...
Definition
breaks apart food.
Term
What is the function of this sphincter?: Lower esophageal sphincter
Definition
Prevent backflow of stomach contents into the esophagus
Term
What is the function of this sphincter?: Pyloric sphincter
Definition
Control the flow of stomach contents into the small intestine
Term
What is the function of this sphincter?: Sphincter of Oddi
Definition
Control the flow of bile from common bile duct into the small intestine
Term
What is the function of this sphincter?: Ileocecal valve
Definition
Prevent the contents of the large intestine from reentering the small intestine
Term
What is the function of this sphincter? Anal sphincters
Definition
Prevent defecation until person desires to do so
Term
Mucus:
Definition
viscous material produced by goblet cells; mucus moistens, lubricates, and propels the GI tract
Term
Enzymes:
Definition
protein molecules that speed up chemical reactions; enzymes are not changed during reactions, they mediate chemical reactions
Term
Hormones:
Definition
substances formed in the endocrine glands; they enter the blood and affect/control activities of some organs, cells, or tissues
Term
Where does salivary amylase come from, where does it work, and what does it do?
Definition
Salivary glands, mouth, breaks starch into shorter chains of glucose
Term
Where does rennin come from, where does it work, and what does it do?
Definition
Stomach, stomach, causes the milk protein casein to curdle
Term
Where does pepsin come from, where does it work, and what does it do?
Definition
Stomach, stomach, breaks proteins into polypeptides and amino acids
Term
Where does trypsin come from, where does it work, and what does it do?
Definition
Pancreas, small intestine, breaks proteins and polypeptides into shorter polypeptides
Term
Where does chymotripsin come from, where does it work, and what does it do?
Definition
Pancreas, small intestine, breaks proteins and polypeptides into shorter polypeptides
Term
Where does carboxypeptidase come from, where does it work, and what does it do?
Definition
Pancreas, small intestine, breaks polypeptides into amino acids
Term
Where does lipase come from, where does it work, and what does it do?
Definition
Pancreas, small intestine, breaks triglycerides into monoglycerides, fatty acids, and glycerol
Term
Where does pancreatic amylase come from, where does it work, and what does it do?
Definition
Pancreas, small intestine, breaks starch into shorter glucose chains and maltose
Term
Where do carboxypeptidase, aminopeptidase, and dipeptidase come from, where do they work, and what do they do?
Definition
Small intestine, small intestine, break polypeptides and dipeptides into amino acids
Term
Where does sucrase come from, where does it work, and what does it do?
Definition
Small intestine, small intestine, breaks sucrose into glucose and fructose
Term
Where does lactase come from, where does it work, and what does it do?
Definition
Small intestine, small intestine, breaks lactose into glucose and galactose
Term
Where does maltase come from, where does it work, and what does it do?
Definition
Small intestine, small intestine, breaks maltose into glucose
Term
Where does dextrinase come from, where does it work, and what does it do?
Definition
Small intestine, small intestine, breaks short chains of glucose into individual glucose molecules
Term
Where does gastrin come from and what does it do?
Definition
Stomach mucosa, stimulates secretion of hydrochloric acid and pepsinogen by gastric glands in the stomach and increases gastric motility and emptying
Term
Where does somatostatin come from and what does it do?
Definition
Stomach and duodenal mucosa, inhibits the following: stomach secretion, motility, and emptying; pancreatic secretion; absorption in the small intestine; gallbladder contraction; and bile release
Term
Where does secretin come from and what does it do?
Definition
Duodenal mucosa, inhibits gastric secretion and motility; increases output of water and bicarbonate from the pancreas; increases bile output from the liver
Term
Where does cholecystokinin (CCK) come from and what does it do?
Definition
Duodenal mucosa, stimulates contraction of the gallbladder to expel bile; increases output of enzyme-rich pancreatic juice
Term
Where does gastric inhibitory peptide come from and what does it do?
Definition
Duodenal mucosa, inhibits gastric secretion and motility
Term
What does saliva turn food into?
Definition
Bolus
Term
What does the epiglottis do?
Definition
Covers the passageway to the lungs during swallowing
Term
What cells in the nose are stimulated with chewing?
Definition
Olfactory
Term
Swallowing moves the bolus from the mouth to the _____.
Definition
esophagus
Term
How many cups can the stomach hold?
Definition
About four
Term
What are some functions of hydrochloric acid?
Definition
Inactivates (unfolds) proteins, destroys bacteria and viruses, dissolves minerals to aid in absorption, and converts pepsinogen into pepsin
Term
Which hormone controls the release of HCI and pepsinogen?
Definition
Gastrin
Term
Where is bile produced?
Definition
The liver
Term
Where is bile stored?
Definition
The gallbladder
Term
What is absorbed in the stomach?
Definition
Alcohol and water
Term
What is absorbed in the small intestine?
Definition
Calcium and other minerals, glucose, amino acids, fats, vitamins, water, alcohol, and bile acids
Term
What is absorbed in the large intestine?
Definition
Sodium, potassium, some fatty acids, vitamin K, biotin, gases, and water
Term
What are probiotics?
Definition
Live bacteria in food and supplements that have health benefits
Term
What are prebiotics?
Definition
Non-digestible carbohydrates in food that promote the growth of bacteria
Term
Carbohydrates are produced by _____ via _____.
Definition
plants, photosynthesis
Term
What type of carbohydrate are starch, glycogen, and fiber?
Definition
Complex
Term
Monosaccharides:
Definition
simple sugar building blocks
Term
Disacchardes:
Definition
two monosaccharides
Term
Polysaccharides:
Definition
many sugar building blocks
Term
What reaction links monosaccharides (creates disaccharides)?
Definition
Condensation reaction
Term
Hydrolysis reaction:
Definition
involves adding a water molecule to a bond, causing it to break
Term
Condensation reaction:
Definition
involves removing the components of what would make up a water molecule, thus creating a bond
Term
Starch:
Definition
a storage polysaccharide of plants, consists entirely of glucose monomers; the simplest form of starch is amylose
Term
Glycogen:
Definition
a storage polysaccharide in animals; humans and other vertebrates store glycogen mainly in liver and muscle cells
Term
Are soluble fibers digestible?
Definition
No
Term
Which layers do whole or unrefined grains contain?
Definition
Bran, germ, and endosperm
Term
What does the liver convert fructose and galactose to?
Definition
Glucose
Term
What is glucose stored as?
Definition
Muscle and liver glycogen
Term
Insulin:
Definition
hormone that facilitates transfer of glucose from blood into cells, lowers blood glucose
Term
What do digestible carbohydrates do?
Definition
Provide energy, spare protein, and prevent ketosis
Term
Most lipids in the body are _____ stored in _____ tissue.
Definition
triglycerides, adipose
Term
What are some functions of lipids?
Definition
Contribute to body shape, store and produce energy, insulate the body, protect the body, act as a lubricant for eyes, and give the body essential fatty acids
Term
What are triglycerides made of?
Definition
Three fatty acids and a glycerol molecule
Term
Short-chain fatty acids:
Definition
4-7 carbons; remain liquid at colder temperatures (milk)
Term
Medium-chain fatty acids:
Definition
8-12 carbons; solidify when chilled but are liquid at room temperature (coconut oil)
Term
Long-chain fatty acids
Definition
12+ carbons; usually solid at room temperature (beef fat)
Term
What are the two types of unsaturated fatty acids?
Definition
Monounsaturated and polyunsaturated
Term
Sterols:
Definition
carbons arranged in rings
Term
Fat is transported as _____.
Definition
lipoproteins
Term
What are some types of lipoproteins?
Definition
Chylomicrons, VLDLs, LDLs, and HDLs
Term
Chylomicrons:
Definition
transport of dietary triglycerides
Term
VLDLs:
Definition
produced by liver, carry triglycerides
Term
LDLs:
Definition
take cholesterol to the cells
Term
HDLs:
Definition
pick up and recycle or dispose of cholesterol
Term
What are the essential amino acids?
Definition
Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine
Term
What are the non-essential amino acids?
Definition
Alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, tyrosine
Term
What are the branched-chain amino acids?
Definition
Isoleucine, leucine, and valine
Term
What are some functions of protein?
Definition
Contributing to vital body structures, maintaining fluid balance, makes up hormones, enzymes, and neurotransmitters, contributes to immune function, transports nutrients, forms glucose, and provides energy
Term
Kwashiorkor:
Definition
severe protein (with moderate energy) deficit; often accompanied by infections or other diseases
Term
Marasmus:
Definition
severe energy and protein deficit
Term
What is the energy metabolism reaction?
Definition
Glucose+oxygen→energy+carbon dioxide+water
Term
Catabolic pathways:
Definition
release energy by breaking down complex molecules into simpler compounds
Term
Anabolic pathways:
Definition
consume energy to build complex molecules from simpler ones
Term
Is cellular respiration an example of catabolism or anabolism?
Definition
Catabolism
Term
Is the synthesis of protein from amino acids an example of catabolism or anabolism?
Definition
Anabolism
Term
Energy:
Definition
the capacity to cause change
Term
What is the order in which cells use nutrients for energy?
Definition

1. Glucose

2. Lipids 

3. Protein

Term
Oxidized substance:
Definition
loses electron(s); gains oxygen/loses hydrogen
Term
Reduced substance:
Definition
gains electron(s); loses oxygen/gains hydrogen
Term
Which coenzymes are electron transporters?
Definition
NAD+ and FAD+
Term
How many ATP does cellular respiration produce per one glucose?
Definition
30-32
Term
What are the four steps in the aerobic cellular respiration of glucose?
Definition

1. Glycolysis              

2. Transition reaction     

3. Citric Acid Cycle (CAC) 

4. Electron transport chain

Term
Where does anaerobic respiration occur?
Definition
In cells with no mitochondria and in all cells when there is no oxygen
Term
Pyruvate is converted into _____ or _____ during anaerobic respiration.
Definition
lactate, alcohol
Term
Fermentation:
Definition
anaerobic harvesting of energy (producing ATP without oxygen)
Term
How is ATP produced?
Definition
From fats, by lipolysis and fatty acid oxidation
Term
Ketogenesis:
Definition
burning of fat for energy; ketone bodies formed by incomplete fatty acid oxidation
Term
Ketosis:
Definition
in semistarvation or fasting, glucose down so insulin down
Term
How is protein metabolized?
Definition
Through gluconeogenesis
Term
What is basal metabolism (BMR)?
Definition
The minimum amount of energy in a fasting state
Term
What is resting metabolism?
Definition
A non-fasting measurement that is 6% higher than BMR
Term
How can energy intake be estimated?
Definition
Bomb calorimeter measurements or calculated using known fuel values
Term
What methods can be used to estimate body weight and composition?
Definition
Weight-for-height tables and BMI
Term
How can body fat content be measured?
Definition
Air displacement, skinfold thickness, and bioelectrical impedance
Term
If most of your body fat is stored in your upper body, it is called _____ (_____ _____).
Definition
android, apple shaped
Term
If most of your body fat is stored in your lower body, it is called _____ (_____ _____).
Definition
gynoid, pear shaped
Term
What is included in professional help for weight control?
Definition
Drug treatment, very-low-calorie-diets, and gastroplasty
Term
VO2 max:
Definition
numerical measurement of your body's ability to consume oxygen
Term
ATP:
Definition
immediately usable energy (lasts 2-4 seconds)
Term
Phosphocreatine:
Definition
initial resupply of muscle ATP
Term
What type of glycogen is important in short-term exercise?
Definition
Muscle glycogen
Term
What type of glycogen is important in long-term exercise?
Definition
Liver glycogen
Term
What do depletions of glycogen stores in muscles, liver, and both cause?
Definition

Muscles: fatigue

Liver: hypoglycemia

Both: "hitting the wall"

Term
Where is ATP stored, when is it used, and what type of activity is it used in?
Definition
All tissues, all the time, sprinting (0-3 sec)
Term
Where is phosphocreatine stored, when is it used, and what type of activity is it used in?
Definition
All tissues, short bursts, shot put and bench press
Term
Where is carbohydrate (anaerobic) stored, when is it used, and what type of activity is it used in?
Definition
Muscles, high intensity exercise lasting 30 seconds to 2 minutes, 200 meter sprint
Term
Where is carbohydrate (aerobic) stored, when is it used, and what type of activity is it used in?
Definition
Muscles and liver, exercise lasting 2 minutes to 3 hours or more, jogging and swimming
Term
Where is fat (aerobic) stored, when is it used, and what type of activity is it used in?
Definition
Muscles and fat cells, exercise lasting more than a few minutes, marathons and day-long hikes
Term
What is the main fuel for prolonged low-intensity exercise?
Definition
Fat
Term
Which amino acids do energy come from?
Definition
Branched-chain
Term
Ergogenic aid:
Definition
substance or treatment intended to improve exercise performance directly
Term
What are some useful ergogenic aids?
Definition
Creatine, sodium bicarbonate, caffeine
Term
What are some ergogenic aids that are possibly useful, but still under study?
Definition
Glucosamine, branched-chain amino acids, and glutamine
Term
What are some dangerous and/or illegal ergogenic aids?
Definition
Anabolic steroids, growth hormone, blood doping, and GHB
Term
What percent of our body weight is water?
Definition
50-75%
Term
Do we have water reserves?
Definition
No
Term
About how much of the water in our body is located inside the cells (intracellular)?
Definition
~63%
Term
About how much of the water in our body is located outside the cells (extracellular)?
Definition
~37%
Term
Where are the two main places we find extracellular fluid?
Definition
Between our cells (interstitial) and in our blood (intravascular)
Term
Electrolytes:
Definition
salts or minerals that play important roles in our bodies
Term
What are the major cations in intracellular fluid?
Definition
Potassium and magnesium
Term
What are the major cations in extracellular fluid?
Definition
Sodium and calcium
Term
What are the major anions in intracellular fluid?
Definition
Phosphate and sulfate
Term
What are the major anions in extracellular fluid?
Definition
Chloride and bicarbonate
Term
What does the sodium-potassium pump do?
Definition
Moves 3 sodium and 2 potassium into a cell against their concentration gradients
Term
Osmosis:
Definition
water moving across membranes
Term
Isotonic:
Definition
the salt concentration on the outside of the cell and the inside of the cell are the same
Term
Hypertonic:
Definition
the salt concentration is higher outside the cell
Term
Hypotonic:
Definition
the salt concentration is lower outside the cell
Term
Water wants to go where there are _____ salt concentrations
Definition
higher
Term
What are some characteristics of ADH?
Definition
Made in the pituitary gland, makes its way to the kidneys, increases water retention
Term
What are some functions of water?
Definition
Maintains blood volume, transports nutrients and oxygen, basis for body fluids, solvent, participates in chemical reactions, regulates temperature, and removes waste
Term
What are the things that cause water need variation?
Definition
Body size, physical activity, temperature and humidity, and dietary intake
Term
Dehydration:
Definition
fluid intake falls short of fluid loss
Term
What is water intoxication called?
Definition
Hyponatremia
Term
What factors lead to unsanitary water for people?
Definition
Natural disasters, inadequate infrastructure, political influences, and lack of sanitation
Term
What are some functions of sodium?
Definition
Water balance, absorption of nutrients, and muscle and nerve function
Term
What are some functions of potassium?
Definition
Major intracellular cation, fluid balance, transmission of nerve impulses, muscle contraction, decreases urinary calcium excretion, and decreases blood pressure
Term
Hypokalemia:
Definition
potassium deficiency
Term
Hyperkalemia:
Definition
excess potassium
Term
Does hyperkalemia result from an excess dietary intake of potassium?
Definition
No, it results from impaired kidney function.
Term
What are some functions of chloride?
Definition
Primary extracellular anion, fluid balance, nerve impulse transmission, component of HCI, immune function, maintenance of acid-base balance
Term
What are the components of blood?
Definition
Water, electrolytes, proteins, and nutrients
Term
Erythrocytes:
Definition
transport oxygen and CO2
Term
Leukocytes:
Definition
immune function
Term
Platelets:
Definition
blood clotting
Term
Anemia refers to the number of red blood cells being _____ normal.
Definition
below
Term
_____ is found in red blood cells. _____ is found in muscles and tissues.
Definition
Hemoglobin, Myoglobin
Term
What type of iron is found in foods?
Definition
Heme and nonheme iron
Term
Hematocrit:
Definition
percentage of total blood comprised of red blood cells
Term
What are some functions of zinc?
Definition
Cofactor for >300 enzymes, heme synthesis, DNA and RNA synthesis, reproduction, growth and development, bone formation, immune function, antioxidant system, taste acuity, and stabilizes protein structures
Term
What was vitamin K named after?
Definition
Koagulation (Danish word for coagulation)
Term
What are some functions of vitamin K?
Definition
Bone metabolism and activation of blood clotting factors
Term
What are the two main types of bone?
Definition
Cortical and trabecular
Term
What are some characteristics of cortical bone?
Definition
75% of skeletal mass and a dense outer shell
Term
What are some characteristics of trabecular bone?
Definition
Hard, spongy network of rods, plates, and spines, ends of long bones, and inside vertebrae and pelvis
Term
Bone-building cells are _____ and _____.
Definition
osteoblasts and osteocytes
Term
Bone-resorbing cells are _____.
Definition
osteoclasts
Term
Osteoblasts:
Definition
produce collagen, add minerals
Term
Osteocytes:
Definition
take up and release bone minerals
Term
Osteoclasts:
Definition
release acid and enzymes to dissolve bone
Term
What are some functions of calcium?
Definition
Bone mineralization, blood clotting, nerve impulse transmission, muscle contraction, and cell metabolism
Term
What are some potential health benefits of calcium?
Definition
A reduced risk of colon cancer, a reduced risk of kidney stones, and helping with blood pressure
Term
What are some functions of vitamin D?
Definition
Genetic expression, cell cycle regulation, promotes phosphorus absorption, and reduces the risk of diabetes, cancer, cardiovascular disease, and autoimmune diseases
Term
What are some functions of phosphorus?
Definition
Major component of bones and teeth, main intracellular anion, energy production and storage, genetic material, cell membranes, activation of enzymes, acid/base balance, and may reduce hypertension
Term
What are some functions of magnesium?
Definition
Bone structure and mineralization, cofactor for >300 enzymes that use ATP, DNA/RNA synthesis, nerve transmission, glucose and insulin metabolism, blood pressure, and reduced risk of gallstones
Term
What are some functions of vitamin E?
Definition
Prevents cancer, cardiovascular, and other chronic diseases
Term
What are some functions of vitamin C (ascorbic acid)?
Definition
Electron donor in redox reactions, antioxidant, and immune function
Term
Vitamin C deficiency can cause _____.
Definition
scurvy
Term
What are the provitamin A carotenoids?
Definition
Alpha-carotene, beta-carotene, and beta-cryptoxanthin
Term
What are the types of preformed vitamin A?
Definition
Retinal, retinol, and retinoic acid
Term
What are some characteristics of a favorable pregnancy outcome?
Definition
A full-term pregnancy (>37 weeks) and the infant weighing >5.5 pounds, usually 7.5 pounds
Term
What are the prenatal developmental stages?
Definition
Conception, zygotic, embryonic, and fetal
Term
What are the critical periods of pregnancy?
Definition
The finite windows of opportunity for cells to develop into a tissue or organ
Term
The zygote, embryo, and fetus get their nutrition from the _____ _____ and the _____.
Definition
umbilical cord, placenta
Term
Which trimester do most of the critical periods occur in?
Definition
The first trimester
Term
What nutrients are needed to build new cells?
Definition
Protein, essential fatty acids, zinc, folate and vitamin B-12, and iron
Term
What is lactation?
Definition
Milk production
Term
What is lactation promoted and stimulated by?
Definition
Promoted by prolaction, stimulated by suckling
Term
What are the three types of milk?
Definition
Colostrum, transitional, and mature
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