A) ketone and aldehyde
B) carbonyl and carboxyl
C) carboxyl and amino
D) phosphate and sulfhydryl
E) hydroxyl and aldehyde
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C) carboxyl and amino
Humans and mice differ because
A) their cells have different small organic molecules
B) their cells make different types of large biological molecules
,C) their cells make different types of lipids
D) their cells have some differences in the sequence of nucleotides in their nucleic
acids
E) their cells make different types of proteins
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D) their cells have some differences in the sequence of nucleotides in their
nucleic acids
In animal cells, hydrolytic enzymes are packaged to prevent general destruction of
cellular components. Which of the following organelles functions in this
compartmentalizations?
A. Chloroplast
B. Lysosome
C. Central vacuole
D. Peroxisome
E. Glyoxysome
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B. Lysosome
Microfilaments are known for their role in which of the following?
A. Ameboid
B. Formation of cleavage furrows
C. Contracting of muscle cells
D. A and B only
E. A, B, and C
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, E. A, B, and C
I still has the following molecules and structures: enzymes, DNA, ribosomes, plasma
membrane, and mitochondria. It could be a cell from
A. A bacterium
B. An animal, but not a plant
C. A plant, but not an animal
D. A plant or animal
E. Any kind of organism
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D. A plant or an animal
50) Which of the following statements is (are) true about the phosphate ion?
A) It is negatively charged.
B) It has acid properties.
C) It is hydrophobic.
D) Only A and B are true.
E) A, B, and C are true
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D) Only A and B are true.
9) What is the reason why hydrocarbons are not soluble in water?
A) The majority of their bonds are polar covalent carbon to hydrogen linkages.
B) The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages.
C) They are hydrophilic.
, D) They exhibit considerable molecular complexity and diversity.
E) They are lighter than water
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B) The majority of their bonds are nonpolar covalent carbon-to-hydrogen
linkages.
Which cell would be best for studying lysosomes?
A. Muscle cell
B. Nerve cell
C. Phagocytize white blood cell
D. Leaf cell of a plant
E. Bacterial cell
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C. Phagocytize white blood cell
Of the following, which cell structure would most likely be visible with a light
microscope that has been manufactured to the maximum resolving power possible?
A. Mitochondrion
B. Microtubule
C. Ribosome
D. Largest microfilament
E. Nuclear pore
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A. Mitochondrion