Quorum sensing is used by bacterial cells to determine which of the following?
A. the size of the population
B. the availability of nutrients
C. the speed of water flow
D. the density of the population
Ans: D. the density of the population
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Both hydrophilic and charged molecules readily diffuse through the cytoplasmic membrane
Indicate whether the statement is true or false.
While a locus refers to a unit of heredity, a gene refers to a specific position on a chromosome.
Answer the following statement true (T) or false (F)
hCG stimulates which structure to secrete estrogen and progesterone?
a. the zona pellucida b. the corona radiata c. the corpus luteum d. the ovum e. the placenta
Where would you expect to find tight junctions?
A) in the epithelium of an animal's stomach B) between the smooth endoplasmic reticulum and the rough endoplasmic reticulum C) between plant cells in a woody plant D) in the plasma membrane of prokaryotes