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Sabrina Carter
Week 1-6 Physiology
| Question | Answer |
|---|---|
| Homeostasis can best be described as: | a state of relative constancy. |
| The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as | organs that are directly influenced by physiological variables or mechanisms. |
| A structural lipid found in the cell membrane is a: | steroid and phospholipid. |
| The pairing of bases of a strand of DNA is obligatory. If a strand of DNA were composed of the base sequence of ATCG, what would be the obligatory sequence of its opposing base pairs? | TAGC |
| Osmosis can be defined as | the net movement of water molecules from a region of lower solute concentration to a region of higher solute concentration. |
| The area referred to as true skin is the: | dermis. |
| As the activity of osteoblasts increases, the: | amount of calcium in bone increases and level of calcium in the blood decreases. |
| Normally, bone loss will begin to exceed bone gain between the ages of _____ years. | 35 and 40 |
| Three phases of the twitch contraction are the | latent period, contraction phase, and relaxation phase. |
| The shoulder joint is an example of a _____ joint. | The shoulder joint is an example of all of these. |
| Attempting to pick up an object too heavy to lift would result in which type of muscle contraction? | Isometric |