Various viruses support their propagation by activating ____ kinase cascades in cells they infect
a. MAP d. GTP
b. cAMP e. cytoplasmic
c. steroid hormone
A
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If you gently bend your ear, and then let go, the shape of your ear will return because the cartilage of your ear contains_____
A) collagenous fibers B) elastic fibers C) reticular fibers D) adipose tissue E) loose connective tissue
The ________ is the site where lipids, triglycerides, and steroids are synthesized, as well as where calcium is stored within the cell.
A) lysosome B) smooth endoplasmic reticulum C) nucleolus D) mitochondria E) rough endoplasmic reticulum
Which of the following is a secondary compound of embryophytes?
A) adenosine triphosphate B) alkaloids C) GDP D) chlorophyll a E) chlorophyll b
Why is organ transplantation challenging?
A) Organs cannot be grown in the laboratory. B) T cells from the immune system attack transplanted tissue. C) Identical twins cannot donate organs to each other by law. D) To harvest a donor's organs, the donor needs to be dead for at least 24 hours.