Absence of a cytoskeleton might affect
A. cell shape.
B. the ability of the cell to generate energy.
C. membrane transport.
D. vesicle formation.
E. the number of channel proteins in the cell membrane.
A
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Sharp, color vision is a result of the function of
A. rods. B. cones.
A person with type B blood
A. has anti-A antibodies . B. has antigen A. C. can receive type A blood. D. will have a transfusion reaction if given type B blood. E. has anti-B antibodies.
The major metabolic effects of glucagon include:
A. stimulating glycogenolysis and gluconeogenesis in the liver. B. stimulating triglyceride synthesis in adipose tissue. C. stimulating glucose uptake into skeletal muscle cells. D. stimulating the activity of glycogen synthase in the liver. E. inhibiting the enzyme glycogen phosphorylase in the liver.
The dimensions of two different cells are measured under a microscope. Their surface areas and volumes are shown in the table below. Over time, Cell B increases in size, while Cell A stays the same. Which of the following correctly explains which cell will be able to obtain nutrients faster by diffusion?