Where are lipids that are destined for cell membranes synthesized?

a. Golgi bodies
b. ribosomes
c. mitochondria
d. lysosomes
e. smooth endoplasmic reticula


e

Biology & Microbiology

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In a lysosomal storage disease, the hydrolases of lysosomes are released from the cells, rather than being isolated into vesicles. What is one possible mechanism for this result?

A) A proton gradient within vesicles was not generated. B) The ER was unable to produce lysosomal vesicles. C) Lysosomal enzymes were not phosphorylated in the rER. D) There is a lack of mannose-6-phosphatase activity. E) There is a mutation in all hydrolase genes that results in loss of the signal peptide.

Biology & Microbiology

When one molecule of glucose is completely oxidized in aerobic respiration, the net amount of ATP

produced is: a. 2 b. 4 c. 22 d. 34 to 36 e. 36 to 38.

Biology & Microbiology

Which of the following organelle is seen inside the nucleus of a cell?

a. mitochondria b. centriol c. nucleolus d. ribosomes

Biology & Microbiology

Which of the following statements is false?

a. Shark’s teeth are modified scales that are continuously shed and replaced. b. Many fish use a swim bladder to provide buoyancy control. c. The bony fishes were the ancestors of the cartilaginous fishes. d. The ray-finned fishes are the most numerous and diverse of the fish groups. e. The lobe-finned fishes are represented today only by the coelacanths.

Biology & Microbiology