Which of the following cells would most likely hav the greatest concentration of densely packed rough endoplasmic reticulum?
A. An amoeba engulfing small ciliates
B. A bioluminescent bacterial cell
C. A pancreatic cell engaged in the production of digestive enzymes
D. A functional phloem cell at maturity
E. An epithelial cell whose DNA is replicating before mitosis
Ans: C. A pancreatic cell engaged in the production of digestive enzymes
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What is a type of master gene that controls the formation of body parts during development?
a. control gene b. gradient gene c. differentiation gene d. developmental gene e. homeotic gene
A "high-energy bond" in ATP ____
a. absorbs a large amount of free energy when the phosphate group is attached during hydrolysis b. is formed when ATP is hydrolyzed to ADP and one phosphate group c. is similar to the bonds in glucose molecules d. forms as part of an endergonic reaction e. cannot be readily used in reactions
Although carbon dioxide contains carbon, it is
not considered an "organic" compound because a. it is not found in the earth's crust. b. it is not present in living cells. c. the carbon atom is not bonded to at least one hydrogen atom. d. the carbons are not in chains or rings. e. it is too small.
When making scientific decisions in one's life, it is best to ask questions, gather and evaluate information and evidence, and carefully consider the sources of the material. This process is called ________
Fill in the blank(s) with correct word