Before Mendel, most people would have predicted that a cross of a red rose with a yellow rose would produce ____
a. all red roses
b. all yellow roses
c. all orange roses
d. about half yellow roses and half red roses
e. about three-fourths red roses and one-fourth yellow roses
ANSWER: c
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The Krebs cycle occurs in the mitochondria. There are nine biochemical reactions involved in the Krebs cycle, and they are highly ordered. Select the correct order. (Note: These are abbreviated and do not show NAD, ADP, ATP, or FAD.)
A. acetyl-CoA joins the Kreb cycle and unites with oxaloacetate ®forming citrate ®which forms beta-ketoglutarate ® which forms succinyl-CoA ® which forms succinate ® which forms fumarate ® which forms malate ® which forms oxaloacetate B. acetyl-CoA joins the Kreb cycle and unites with oxaloacetate ®forming citrate ®which forms alpha-ketoglutarate ® which forms succinyl-CoA ® which forms succinate ® which forms malate ® which forms fumarate ® which forms oxaloacetate C. acetyl-CoA joins the Kreb cycle and unites with oxaloacetate ®which forms alpha-ketoglutarate ® forming citrate ® which forms succinyl-CoA ® which forms succinate ® which forms fumarate ® which forms malate ® which forms oxaloacetate D. acetyl-CoA joins the Kreb cycle and unites with oxaloacetate ®forming citrate ®which forms alpha-ketoglutarate ® which forms succinyl-CoA ® which forms succinate ® which forms fumarate ® which forms malate ® which forms oxaloacetate
Which of the following is NOT an effect of
cortisol?
a. causes liver cells to hydrolyze glucagon b. suppresses the uptake of glucose by body cells c. suppresses the hydrolsis of fats by adipose cells d. causes skeletal muscle cells to degrade proteins e. more than one of these is NOT an effect of cortisol
. Magnesium has 12 protons. How many electrons are
in its third energy level? a. 2 b. 4 c. 6 d. 8 e. 10
Which cellular organelle packages enzymes and forms lysosomes?
A) Smooth ER B) Rough ER C) Mitochondrion D) Golgi apparatus