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Questions and Answers
What are the major periods of a cell cycle?
What are the major periods of a cell cycle?
What activates cyclin-dependent protein kinases that trigger mitosis in a cell cycle?
What activates cyclin-dependent protein kinases that trigger mitosis in a cell cycle?
What type of cell death is caused by injury or infection?
What type of cell death is caused by injury or infection?
What is the main function of cyclin in cell growth and division?
What is the main function of cyclin in cell growth and division?
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When does programmed cell death, known as apoptosis, occur in a cell?
When does programmed cell death, known as apoptosis, occur in a cell?
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Where does transcription occur?
Where does transcription occur?
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What enzyme catalyzes transcription?
What enzyme catalyzes transcription?
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Which process occurs in the cytosol?
Which process occurs in the cytosol?
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What is the purpose of genetic engineering?
What is the purpose of genetic engineering?
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Which type of cell division produces gametes?
Which type of cell division produces gametes?
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What occurs during somatic cell division?
What occurs during somatic cell division?
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What type of molecules are highly permeable to the cell membrane?
What type of molecules are highly permeable to the cell membrane?
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What is the main difference between passive and active transport?
What is the main difference between passive and active transport?
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What is the main role of transport proteins in the cell membrane?
What is the main role of transport proteins in the cell membrane?
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Why is there a difference in Na+ concentration inside and outside the cell membrane?
Why is there a difference in Na+ concentration inside and outside the cell membrane?
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What creates the combined effect of concentration and electrical gradients influencing ion movement?
What creates the combined effect of concentration and electrical gradients influencing ion movement?
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What is the purpose of endocytosis and exocytosis in relation to membrane transport?
What is the purpose of endocytosis and exocytosis in relation to membrane transport?
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What type of substances move freely through the lipid bilayer of the PM without the help of membrane transport proteins?
What type of substances move freely through the lipid bilayer of the PM without the help of membrane transport proteins?
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Which of the following factors influences the rate of diffusion?
Which of the following factors influences the rate of diffusion?
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What is essential for cellular gaseous exchange, absorption of nutrients, and excretion of waste products?
What is essential for cellular gaseous exchange, absorption of nutrients, and excretion of waste products?
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Which type of transport involves an integral membrane protein acting as a channel or carrier to assist specific substances across the membrane?
Which type of transport involves an integral membrane protein acting as a channel or carrier to assist specific substances across the membrane?
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Which type of diffusion involves ion channels for substances like K+, Cl−, Na+, and Ca2+?
Which type of diffusion involves ion channels for substances like K+, Cl−, Na+, and Ca2+?
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In carrier-mediated facilitated diffusion, the carrier undergoes a change in shape to release the solute on which side of the PM?
In carrier-mediated facilitated diffusion, the carrier undergoes a change in shape to release the solute on which side of the PM?
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What is the function of a symporter carrier protein in secondary active transport?
What is the function of a symporter carrier protein in secondary active transport?
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Which process occurs due to a huge build-up of Na+ in the extracellular fluid?
Which process occurs due to a huge build-up of Na+ in the extracellular fluid?
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In vesicular transport, what process moves substances out of the cell?
In vesicular transport, what process moves substances out of the cell?
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What is the role of phagocytes in vesicular transport?
What is the role of phagocytes in vesicular transport?
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Which type of substance uptake involves the liberation of digestive enzymes and hormones from secretory cells?
Which type of substance uptake involves the liberation of digestive enzymes and hormones from secretory cells?
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What differentiates a symporter from an antiporter in secondary active transport?
What differentiates a symporter from an antiporter in secondary active transport?
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