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College Biology Questions

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College :: DNA, RNA, and Genetics by Taxs20
College :: Biochemistry by shleee
In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of:
  1. ATP, CO2, and lactate
  2. ATP, pyruvate and acetyl CoA
  3. ATP, NADPH, and pyruvate
  4. ATP, pyruvate and oxygen
  5. ATP, CO2 and ethanol
College :: Biochemistry by shleee
Photosynthesis and aerobic respirations form a balanced cycle in the biosphere because:
  1. both processes produce about equal amounts of oxygen
  2. both processes break down organic molecules into CO2 and H2O
  3. both processes occur in the mitochondria
  4. their overall reactions are exactly the opposite of one another
  5. photosynthesis operates only in plants, while respiration operates only in animals
College :: Biochemistry by shleee
Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
  1. ATP and NADPH
  2. ADP, Pi, and NADP+
  3. H20 and O2
  4. electrons and H+
  5. CO2 and glucose
College :: Biochemistry by shleee
In photosynthesis electron transport:
  1. electrons are produced but the splitting ATP into ADP and Pi
  2. water is formed from protons, electrons and oxygen
  3. a proton gradient is formed as electrons move down the electron transport chain
  4. CO2 is reduced to form sugars
  5. all of the above
College :: Biochemistry by shleee
Where does the Calvin cycle take place?
  1. cytoplasm surrounding the chloroplast
  2. thylakoid membrane
  3. outer membrane of the chloroplast
  4. chlorophyll molecule
  5. stroma of the chloroplast
College :: Biochemistry by shleee
In aerobic respiration, electrons are added to NAD+ and make NADH. These electrons come from
  1. the splitting of water
  2. the carbons of glucose
  3. the breakdown of ATP
  4. the formation of a proton gradient
  5. the electron transport chain
College :: Biochemistry by shleee
At the end of the mitochondrial electron transport chain electrons are:
  1. donated to NADH to make NAD+
  2. added to protons and oxygen to make water
  3. pumped across the member to make ATP
  4. added to ADP to make ATP
  5. removed from ATP to yield energy
College :: Biochemistry by shleee
What is the primary function of the Calvin cycle?
  1. use ATP to release carbon dioxide
  2. use NADPH to release carbon dioxide
  3. synthesize simple sugars from carbon dioxide
  4. transport RuBP out of the chloroplast
  5. split water and release oxygen
College :: Biochemistry by shleee
Which of the following statements about the enzyme Rubisco is true?
  1. Rubisco is found in the Krebs cycle
  2. Rubisco is found in the light reactions of photosynthesis
  3. Rubisco is a very slow enzyme
  4. Some plants do photosynthesis without Rubisco
  5. There are little amounts of Rubisco in a plant
College :: Biochemistry by shleee
In noncyclic electron flow:
  1. both photosystem I and II split water
  2. only photosystem I splits water
  3. both photosystems must operate to form NADPH
  4. neither photosystem splits water
  5. no NADPH is formed
College :: Biology by Raquelbee123
Although life is difficult to define, all living systems do possess a common set of properties. Which of the following is not one of these properties?
  1. living things are unorganized
  2. living things interact with the environment
  3. living things have the ability to reproduce
  4. living things have a metabolism
  5. living things grow and develop
College :: Circulatory and Immune Systems by florette
Normal blood pH is about:
  1. 7.0
  2. 8.0
  3. 7.4
  4. 6.3
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