Answer the following statements true (T) or false (F)
1. The small intestine releases the hormone secretin in response to acid.
2. Fats packaged in chylomicrons pass directly from epithelial cells to the bloodstream.
3. In the stomach, proteins are cleaved into amino acids by aminopeptidases.
4. A person whose ancestors were cattle herders is more likely to express the lactase gene as an adult.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
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In what way is cytokinesis in plant cells similar to binary fission in a bacterium?
A. Cell wall material is deposited between the two nuclei to separate the daughter cells. B. A ring of actin filaments constricts the plasma membrane between the two nuclei to separate the daughter cells. C. A microtubulin-like structure constricts the plasma membrane between the two nuclei to separate the daughter cells. D. A motor protein slides microtubules in a contractile ring at the plasma membrane between the two nuclei to separate the daughter cells. E. All of these choices are correct.
When considering alleles of a gene, DNA is to genotype as ______________ is/are to phenotype
A. RNA B. mutation C. proteins D. lipids E. nucleotides
What is the term for swelling, due to accumulation of lymphatic fluid?
a. angina b. edema c. engorgement d. vasoconstriction e. vasodilation
The female hormone that participates in milk production is _____ and the hormone that facilitates delivery is _____
a. prolactin; oxytocin b. prolactin; estrogen c. prolactin; progesterone d. oxytocin; estrogen e. oxytocin; progesterone