Which organelles would you expect to be especially numerous in cells such as muscle cells that have a tremendous demand for energy in the form of ATP?
A. Mitochondria
B. Ribosomes
C. Peroxisomes
D. Endosomes
E. Lysosomes
Answer: A
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Water loss through the epidermis could cause a serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin?
A) Lamellated granules of the cells of the stratum granulosum, a glycolipid that is secreted into extracellular spaces. B) The size and shape of the cells that make up the stratum spinosum, as well as the thick bundles of intermediate filaments. C) The dermis is the thickest portion of the skin and water cannot pass through it. D) Fat associated with skin prevents water loss.
In adults, new connective tissues cells originate from the
What will be an ideal response?
The function of Merkel cells in the skin is to:
a. Acquire and present antigens to lymphocytes b. Function as mechanoreceptors that respond to pressure c. React to heat via temperature-sensitive calcium channels d. Synthesize melanin e. Synthesize the bulk of keratin within the skin
Which of the following cranial nerves functions as a sensory nerve for taste?
A. Trigeminal B. Facial C. Glossopharyngeal D. Abducens