A cell is dyed with stain that reacts with an enzyme found in the lysosome. Based on this, where else would the dye react?
a. endoplasmic reticulum.
b. nucleus.
c. cytoplasm.
d. mitochondria.
Ans: a. endoplasmic reticulum.
Biology & Microbiology
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The alpha (?) helix is a type of ________ protein structure.
A. primary B. quaternary C. tertiary D. secondary
Biology & Microbiology
Which of the following is a characteristic feature of a carrier protein in a plasma membrane?
A) It exhibits a specificity for a particular type of molecule. B) It requires the expenditure of cellular energy to function. C) It works against diffusion. D) It has no hydrophobic regions.
Biology & Microbiology
Which of the following endocrine glands produces the largest number of different kinds of hormones?
A. the pancreas B. the testes C. the thyroid D. the pituitary
Biology & Microbiology
All mutations are harmful to the cell.
Answer the following statement true (T) or false (F)
Biology & Microbiology