The cytoskeleton of cells is made of ________ .
a. carbohydrates
b. proteins
c. nucleic acid
d. phospholipids
e. lipids
Ans: b. proteins
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Release of leptin by fat cells and the firing of the stretch receptors of the stomach will stimulate the satiety center of the brain.
True or False
What response would correct for a drop in glomerular blood pressure?
A. stimulation of sodium secretion by the distal convoluted tubules B. inhibition of antidiuretic hormone release by the posterior pituitary gland C. inhibition of osmoreceptors in the brain, leading to decreased thirst D. angiotensin II-mediated inhibition of the adrenal cortex E. dilation of the afferent renal arterioles by angiotensin II Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about glomeruli? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The element specifically associated with muscle contraction is
A. calcium B. phosphorus C. potassium D. sodium
How was disproving spontaneous generation associated with developing principles important to microbiology?
a. Pasteur's experiments with swan-necked flasks supported the concept that microbes in the air were responsible for contaminating nonliving matter. b. Proving spontaneous generation confirmed the existence of microbes. c. Spallanzani disproved spontaneous generation through his experiment, in which flasks of meat broth were boiled and then melted shut, preventing the passage of air altogether. d. Needham disproved spontaneous generation through his experiments, in which boiled flasks of broth, when covered, became cloudy, teeming with microorganisms after a few days.