Term
| Temperature impacts metabolic rate (rate at which energy-releasing reactions proceed); other physiological functions (e.g. photosynthesis) |
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Definition
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Term
| Q10 is a factor that describes how rates change with a 10°C rise or fall in temperature (for example, if Q10 = 2, then rates would double with a 10°C rise in temperature) |
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Definition
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Term
| Most marine organisms are ectothermic “cold blooded” |
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Definition
| meaning they match their internal temperatures to their surroundings |
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Term
| Mammals, marine birds are endothermic |
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Definition
(stable, high internal temps)
can tolerate a wide range of temps |
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Term
| compound required for the production of organic matter or structural parts (cell walls) |
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Definition
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Term
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Definition
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Term
| Is not necessarily the element in lowest concentration, but the one that is supplied at the lowest rate relative to the need |
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Definition
| limiting nutrients, usually nitrogen. |
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Term
| Assuming they are the same shape, the smaller the cell the higher the SA to Volume ratio. |
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Definition
| Higher SA to Vol means that material can be transported more efficiently across the cell membrane. |
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Term
| the movement of “particles” from a region of higher concentration to a region of lower concentration |
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Definition
| diffusion (occurs faster at warmer temps) |
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Term
| the movement of water across a selectively- permeable membrane |
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Definition
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Term
| diffusion of water soluble substances through a protein channel (down concentration gradient) |
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Definition
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Term
| Dissolved substances (ions, small molecules) are transported against concentration gradients; requires energy (ATP) |
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Definition
| ACTIVE TRANSPORT-Nutrient uptake, gas exchange – critical for life in the ocean |
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Term
oxygen, carbon dioxide,
and other small, nonpolar
molecules can pass through membrane (no large water soluble molecules |
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Definition
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Term
| For most marine organisms, their body fluids have the same salinity as seawater |
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Definition
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Term
| If body fluids are less salty than seawater, then they are |
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Definition
| hypotonic (marine fish are usually hypotonic) |
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Term
| If body fluids are more salty than seawater, then they are |
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Definition
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Term
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Definition
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Term
| The enzyme ______ catalyzes the initial step in carbon fixation |
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Definition
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Term
| problems for marine animals |
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Definition
Finding food
Avoiding predators
Finding mates (reproduction) |
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Term
| stinging cells (nematocysts) used to immobilize prey |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| nautilus, octopus, cuttlefish, squid |
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