A significant contribution of intestinal bacteria to human nutrition is the benefit of bacterial _____
A) production of vitamins A and C
B) absorption of organic materials
C) production of vitamin K
D) recovery of water from fecal matter
C
You might also like to view...
Which of the following statements best describes the role of NAD+/NADH in glycolysis?
A) NADH is used to produce energy by directly creating the phosphoanhydride bonds in ATP. B) NAD+ is used to carry electrons. C) NADH is capable of pumping ions during glycolysis. D) NADH is used primarily in substrate-level phosphorylation. E) all of the above
As mature adults, male squid have a modified tentacle that carries their sperm. Sperm are
produced in testes and transferred to this modified appendage prior to mating. During courtship and mating, the male will insert this tentacle into a structure know as the mantle cavity of a female, where the eggs are waiting. Fertilization occurs within this body cavity. Which of the following is true about this scenario?
a. Internal fertilization occurs. b. External fertilization occurs. c. These animals have an amniotic egg. d. both (a) and (c)
Which measure of lung volume would be most impacted by emphysema?
1.tidal volume
2.inspiratory reserve volume
3.expiratory reserve volume
4.residual volume
A complete enzyme that consists of a protein component and a nonprotein component is called a(n) ________.
A. multienzyme B. holoenzyme C. heteroenzyme D. apoenzyme