Proteins, carbohydrates, and lipids all perform vital functions for an organism. Discuss some of these vital functions and what could happen to an animal if one of these biological molecules were removed from their diet
What will be an ideal response?
Answer: Proteins play important roles in the structure of cells, as well as function. Receptors, transporters, and enzymes are just a few of the functional roles proteins play. Carbohydrates are important structurally and as an energy source. Carbohydrates can be used as a rapidly accessible form of energy, or they can be stored for later use. Lipids are critical for membrane formation, chemical signaling, and energy sources. Without lipids, isolation of the intracellular and extracellular components would be impossible.
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Which of the following is incorrect pertaining to the thyroid gland?
A) Its secretions are controlled by sympathetic fibers derived primarily from the inferior cervical ganglion. B) Its isthmus usually lies anterior to the 2nd and 3rd tracheal rings. C) It is typically drained by three pairs of veins. D) It receives blood via branches of both the subclavian and external carotid arteries. E) It may become abnormally enlarged, resulting in a goiter.
Answer the following statements true (T) or false (F)
1. Ion pumps are examples of active transport processes. 2. Pinocytosis is a process by which the cell membrane takes in solid particles. 3. Phagocytosis is a process by which the cell membrane takes in fluid and dissolved substances. 4. A cell put in an isotonic solution would crenate. 5. A cell put in a hypotonic solution would lyse.
A patient is heterozygous for sickle-cell anemia. Explain why the patient would have few or no symptoms of sickle-cell anemia
What will be an ideal response
In a(n) ____________________ contraction, the muscle is prevented from shortening, so tension develops at constant muscle length
Fill in the blank(s) with correct word