Which of the following cell structures is NOT found in a bacterial cell?
A) Ribosomes
B) Central vacuole
C) DNA
D) Plasma membrane
E) Cell wall
B
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Which of the following is true?
a. Plants have mitochondria, but animals don’t. b. Animals have mitochondria, but plants don’t. c. Both plants and animals have mitochondria. d. Neither plants nor animals have mitochondria.
Which of the following is an example of an amino acid-derived hormone?
a. estrogen b. testosterone c. epinephrine d. follicle-stimulating hormone
Which statement is true?
1.A cell placed in an isotonic solution will swell. 2.A cell placed in a hypotonic solution will swell. 3.A cell placed in a hypotonic solution will shrink. 4.A cell placed in a hypertonic solution will remain the same size. 5.A cell placed in a hypotonic solution will remain the same size.
Classification. The following are types of chemical bonds. Answer the questions below by matching the descriptions with the most appropriate bond type.
A. The bond type holding several molecules of water together B. The bond between the atoms of table salt (NaCl) C. The bond that breaks when salts dissolve in water D. A bond in which connected atoms share electrons E. A bond in which connected atoms unequally share electrons F. The bond between the oxygen atoms of oxygen gas (O2)