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Free CLEP Science and Mathematics Exam Braindumps (page: 53)

Page 52 of 128
PDF with 494 Questions

Photosynthesis is a process in which plants convert:

  1. sugar into energy
  2. ADP into ATP
  3. fructose into glucose
  4. carbon dioxide and water into sugar
  5. water into peroxide

Answer(s): D

Explanation:

Photosynthesis is the process used by plants to make food. Sunlight is used as the energy source to convert carbon dioxide and water into glucose.



Chloroplasts and mitochondria have the following property in common.

  1. Both are involved in protein synthesis.
  2. Both are involved in energy generation in the cell.
  3. Both are involved in regulating ion concentration in the cell.
  4. Both are involved in the transcription of DNA into RNA.
  5. Their functions are not related.

Answer(s): B

Explanation:

The sugar used by plants for energy is created via photosynthesis in the chloroplasts. Mitochondria are the energy generators in animal cells.



In cellular respiration:

  1. glucose is synthesized from carbon dioxide and water
  2. glucose is broken down into water and energy is consumed
  3. glucose is broken down and energy is created in the form of ATP
  4. glycolysis occurs, leading to the formation of ethanol
  5. pyruvic acid is converted into glucose

Answer(s): C

Explanation:

Cellular respiration is the process used by cells to create energy in the form of ATP.



Which of the following is found in prokaryotic cells only?

  1. DNA
  2. Ribosomes
  3. Nucleoid region
  4. Golgi apparatus
  5. Cytoplasm

Answer(s): C

Explanation:

In prokaryotes, the genetic material is not separated from the remainder of the cell by a membrane, but instead is clustered into the nucleoid region.






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