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Physiology Week 1-6
| 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. |
| Homeostasis can best be described as: | a state of relative constancy. |
| What term is often used to describe certain arrangements of atoms attached to the carbon core of many organic molecules? | functional group |
| What determines how a protein performs? | shape |
| Which lipid is part of vitamin D? | Steroids |
| The total number of 46 chromosomes per cell is referred to as _________ number. | diploid |
| If oxygen is available, the pyruvate molecules formed by glycolysis are prepared to enter the next phase of aerobic cellular respiration, called the | citric acid cycle. |
| Phagocytosis is an example of: | endocytosis. |
| Diffusion requires: | a concentration gradient. |
| Which skin layer contains closely packed, clear cells that contain a gel-like substance called eleidin? | Stratum lucidum |
| Which of the following vitamins is(are) absorbed through the skin? | Vit A, D, and K |
| A tissue is: | a group of similar cells that perform a common function. |
| The external portion of the bone is known as | Cortical bone |
| The cell organelles that synthesize organic matrix substances in bone formation are: | endoplasmic reticulum and Golgi apparatus. |
| Some synovial joints contain a closed pillow-like structure called a(n) | bursa |
| The four kinds of protein that make up myofilaments are myosin, actin, | tropomyosin, and troponin. |
| Most body movements are _____ contractions. | isotonic |