Where are most glucose transporter proteins ("GLUTs") located when levels of the hormone insulin are LOW?
A. inserted into the plasma membrane
B. in the membranes of intracellular vesicles
C. inserted into the nuclear membrane
D. in the endoplasmic reticulum
E. in the liver—They are transported to other cells when glucose levels rise.
B. in the membranes of intracellular vesicles
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Muscle cells require more energy than most other cells in order to function. Therefore, muscle cells would be expected to have more ________ and ________ than most other animal cells
A) glycogen; mitochondria B) peroxisomes; fat C) mitochondria; starch D) ribosomes; glycogen E) glucose; nuclei
Which disease is incorrectly matched with the causative agent?
A. fish ick-a ciliate B. African sleeping sickness-a trypanosome C. malaria-an amoebozoan D. fish kills-dinoflagellate
Some plants are able to endure frequent flooding events because they contain a tissue with loose parenchyma cells and large air spaces called
A. pneumatophores. B. aerenchyma. C. xylem. D. epidermal tissue. E. spongy mesophyll.
Albinism, lack of pigmentation in humans, results from an autosomal recessive gene. Two parents with normal pigmentation have an albino child. What is the probability that their next child will be albino?
A) 1/3 B) 1/2 C) 1/16 D) 1/4 E) 3/4