Cell Processes Part 2: Question Preview (ID: 27495)


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Explain why photosynthesis and respiration are considered opposite processes.
a) Respiration uses energy, CO2 and H2O : makes sugars and O2. Photosynthesis uses sugar and O2 : makes H2O, CO2 and energy. b) Photosynthesis uses energy, CO2 and H2O : makes sugars and O2. Respiration uses sugar and O2 : makes H2O, CO2 and energy. c) Photosynthesis uses energy, CO2 and H2O : makes sugars and O2. Respiration uses sugar and O2 : makes O2, CO2 and energy. d) Photosynthesis uses energy, CO2 and H2O : makes sugars and CO2. Respiration uses sugar and O2 : makes H2O, CO2 and energy.
Compare and contrast passive transport and active transport.
a) They are both ways materials cross the cell membrane. Active transport does not require energy, but passive transport does. b) They are both ways materials cross the cytoplasm. Passive transport does not require energy, but active transport does. c) They are both ways materials cross the cell membrane. Passive transport does not require energy, but active transport does. d) They are both ways materials cross the cytoplasm. Active transport does not require energy, but passive transport does.
Identify two kinds of nucleic acids and explain the function of each.
a) DNA is the genetic material passed from parent to offspring and RNA plays a role in the production of proteins. b) RNA is the genetic material passed from parent to offspring and DNA plays a role in the production of proteins. c) DNA is the genetic material passed from parent to offspring and RNA plays a role in the production of ribosomes. d) RNA is the genetic material passed from parent to offspring and DNA plays a role in the production of ribosomes.
How is the structure of DNA related to DNA replication?
a) The two sides “unzips.” The loose floating nitrogen bases attach with the half ladder making two identical RNA strands. b) The two sides “unzips.” The loose floating amino acids attach with the half ladder making two identical DNA strands. c) The two sides “unzips.” The loose floating amino acids attach with the half ladder making two identical RNA strands. d) The two sides “unzips.” The loose floating nitrogen bases attach with the half ladder making two identical DNA strands.
Interphase sometimes is referred to as the “resting” stage of the cell cycle. Why is this reference misleading?
a) During Interphase the cell grows, copies the DNA and makes extra organelles to prepare for cell division. b) During Interphase the cell grows, copies the RNA and makes extra organelles to prepare for cell division. c) During Interphase the cell divides, copies the DNA and makes extra organelles to prepare for cell division. d) During Interphase the cell grows, copies the DNA and completes cell division.
What is the basic difference between the autotrophs and the heterotrophs?
a) Heterotrophs make their own food (mainly through photosynthesis). Autotrophs cannot make their own food. b) Autotrophs make their own food (mainly through chemical synthesis). Heterotrophs cannot make their own food. c) Autotrophs make their own food (mainly through photosynthesis). Heterotrophs cannot make their own food. d) Heterootrophs make their own food (mainly through chemical synthesis). Autotrophs cannot make their own food.
How do the heterotrophs depend on the autotrophs? Choose the BEST answer.
a) Heterotrophs cannot make their own food so they depend on only autotrophs as their food. b) Heterotrophs cannot make their own food so they depend on autotrophs (or heterotrophs that eat autotrophs) as their food. c) Heterotrophs depend on autotrophs as their food. d) Heterotrophs depend on autotrophs to be their prey.
Interphase sometimes is referred to as the “resting” stage of the cell cycle. Why is this reference misleading? Choose the BEST answer.
a) During interphase the cell grows, copies the DNA and makes extra organelles preparing to divide. This is not “resting.” b) During interphase the cell is growing not resting. c) During interphase the cell copies the DNA. d) During interphase the cell makes extra organelles.
Which are autotrophs?
a) birds, plants and algae b) plants, trees, and frogs c) grass, plants and rabbits d) trees, plants, and algae
Which are hetertrophs?
a) birds, trees, and frogs b) birds, rabbits, and frogs c) plants, frogs and trees d) frogs, rabbits, and plants
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