Why is the ability of cardiac muscle to repair itself more limited than that of smooth muscle?
What will be an ideal response?
Cardiac muscle fibers are incapable of dividing. However, smooth muscles cells can divide, and smooth muscle tissue can regenerate after an injury.
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The second signal during cytotoxic T-lymphocyte activation involves stimulation of the cell by interleukin 2 released by helper T-lymphocytes
Indicate whether this statement is true or false.
Gametes are called haploid because
A) they are produced by the process of mitosis. B) they are either sperm or ova. C) they contain one-half the normal number of chromosomes. D) there are half as many of them produced at each division in comparison with diploid cells. E) All of the answers are correct.
Select the correct statement about the nephrons.
A) The parietal layer of the glomerular capsule is simple squamous epithelium. B) The glomerulus is correctly described as the proximal end of the proximal convoluted tubule. C) Podocytes are the branching epithelial cells that line the tubules of the nephron. D) Filtration slits are the pores that give fenestrated capillaries their name.
Ribosomes are located Bound to the rough endoplasmic reticulum Bound to the membrane of the golgi complex Free in the cytoplasm, unattached to the membrane of any organelle
What will be an ideal response?