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9. Which of the following statements best describes the lipid bilayer of a cell membrane?
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
6. Which of the following suggests that the shape of an enzyme determines the enzyme’s function (what it does)?
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
7. Why might raising the temperature of an enzyme's environment slow the rate at which the rate occurs?
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
5. Which organelle makes proteins?
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
2. Which of the following is best described as pumping ions against the concentration gradient?
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
10. Exocytosis is like a(n)
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
8. Name the phases of the cell cycle in order.
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
3. Enzymes are made of amino acids. Which macromolecule are enzymes?
The active site changes shape.
outgoing international flight.
Enzymes are specific to a substrate.
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
proteins
ribosomes
protein pumps
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