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Karolyn James-Wallac
Physiology Weeks 1-6
| Question | Answer |
|---|---|
| What term describes a signal traveling toward a particular center or point of reference? | Afferent |
| Local control or _____, intrinsic mechanisms often make use of chemical signals. | Auto-regulation |
| To accomplish self-regulation, a highly complex and integrated communication control system or network is required. This type of network is called a(n) | Feedback control loop |
| Events that lead to an immune response to an infection or the formation of a blood clot are examples of | Positive feedback |
| The body naturally changes some set points to different values at different times of the day. These daily cyles are called | Circadian cycles. |
| The concept that information may flow ahead to another process to trigger a change in anticipation of an event that will follow is called | Feed-forward |
| Processes for maintaining or restoring homeostasis are known as | Homeostatic control mechanisms. |
| The relatively constant state maintained by the body is known as | Homeostasis |
| 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. |
| Effectors can be described as | Organs that directly influence controlled physiological variables. |
| DNA: | is a double-helix strand of nucleotides. |
| A _____ is a functional group that is temporarily unattached and is highly reactive because of unpaired electrons. | free radical |
| Peptide bonds join together molecules of: | amino acids. |
| Unsaturated fats: | will kink or bend because of the double bonds between the carbon atoms. |
| The element that is present in all proteins but not in carbohydrates is: | nitrogen. |
| Humans can synthesize 13 of 21 basic amino acids; the remaining 8, which must be included in the diet, are called: | essential amino acids. |
| The term glycoprotein, a combination of two words, tells you that the compound is made of _____, with _____ being the dominant component. | carbohydrate and protein; protein |
| Phagocytosis is an example of: | endocytosis. |
| A saline solution that contains a higher concentration of salt than a red blood cell would be: | hypertonic. |
| An individual’s entire set of DNA can be referred to as a: | genome. |
| Diffusion of particles through a membrane by means of a carrier molecule is called: | facilitated diffusion. |
| A membrane carrier structure attracts a solute to a binding site, changes shape, and releases the solute on the other side of the cell membrane. This describes the process of: | carrier-mediated transport. |
| Water will move through the cell membrane by: | osmosis. |
| Two solutions of different concentrations of glucose are separated by a membrane that allows both glucose and water to pass through. When dynamic equilibrium is reached, there will be: | an even exchange of material across the membrane. |
| In what area of the body would you expect to find an especially thick stratum corneum? | Sole of the foot |
| Of the five epidermal cell layers, the only one that can undergo mitosis is the stratum: | basale. |
| Which type of tissue has the greatest capacity to regenerate? | Epithelial |
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karolyn15
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