Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen?
A) lysosome
B) vacuole
C) mitochondrion
D) Golgi apparatus
E) peroxisome
Answer: E
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Which one of the following statements about carbon is correct?
A. Each of carbon's three valence electrons shares a bond with another atom. B. Carbon-carbon single bonds allow for free rotation around the bond; carbon=carbon double bonds do not allow for free rotation around the bond. C. The spacial orientation of carbon's bonds results in carbon resting in the center of a three-dimensional structure referred to as a hexahedron. D. Carbon is not only the most abundant element on Earth; it is believed to be the most abundant element in the universe. E. Single bonds between carbon atoms are typically shorter than double bonds between carbon atoms.
The organ of Corti
a. functions in the awareness of motion and the sense of equilibrium. b. controls the sense of depth perception. c. converts sound vibrations into impulses that enable hearing. d. secretes cerebrospinal fluid. e. detects light energy
Polydactyly is expressed when an individual has extra fingers and/or toes. Assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits. Having extra digits is caused by a dominant allele
The couple has a son with normal hands and feet, but the couple's second child has extra digits. What is the probability that their next child will have polydactyly? A) 7/16 B) 3/4 C) 1/8 D) 1/2 E) 1/32
Symptoms of protozoan and helminthic diseases are due to
A) tissue damage due to growth of the parasite on the tissues. B) waste products excreted by the parasite. C) products released from damaged tissues. D) tissue damage due to growth of the parasite on the tissues and waste products excreted by the parasite. E) tissue damage due to growth of the parasite on the tissues, waste products excreted by the parasite, and products released from damaged tissues.