Osteoporosis
What will be an ideal response?
A group of diseases in which bone resorption exceeds deposit. Matrix remains normal, but bone mass declines. Most often see in aged, postmenopausal women. Estrogen plays a role in bone density, so when levels drop at menopause, women run a higher risk. Additional risk factors for this disease are petite body form, insufficient exercise to stress bones, diet poor in calcium and protein, smoking, hormone related conditions, immobility, males with prostate cancer taking androgen-suppressing drugs.
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Some slime molds make structures called plasmodia which:
A. contain several forms of chloroplasts. B. provide movement for the slime molds. C. contain many nuclei in one large cell. D. are part of the reproductive structures.
Which of the following statements about structural maintenance of chromosomes (SMC) proteins is true?
A. They have four distinct domains: N, C, and two ?-helical coiled-coil domains. B. They are usually dimeric and dimerization forms the ATP-binding site. C. Dimers of SMC proteins are all homodimers having identical subunits. D. Dimerization of SMC proteins creates a molecule with two heads and two ATP-binding sites. E. The ATP bound by SMC proteins is hydrolyzed before the heads come together in the dimer.
The degree of turbidity in a broth culture correlates to the amount of cell growth.
Answer the following statement true (T) or false (F)
Methylene blue
a. is used to kill cells that are moving too quickly to observe. b. detoxifies cells so they are safe to handle. c. is used as food for Physarum cells. d. is a biological stain used to increase contrast of transparent cells.