Cell Biology Review - 3.25

What is the CHEMICAL FOOD source for a plant?

• glucose

• sunlight

• water

• carbon dioxide

Which compound is released by photosynthesis and used in aerobic respiration?

• water

• carbon dioxide

• ATP

• oxygen

Which of the following is the main function of the light-dependent reactions of photosynthesis?

• to produce ATP and NADPH for the light-independent reactions

• to release oxygen into the atmosphere

• to convert carbon dioxide into water

• to break down glucose into pyruvic acid

Which of the following is the main function of the light-independent reactions of photosynthesis?

• to use up excess carbon dioxide

• to produce oxygen

• to use up water

• to produce glucose

When an athlete is nearing the end of a race and her cells are low on oxygen, which of the following is likely to occur in her cells so that glycolysis can continue to produce ATP?

• fermentation

• DNA synthesis

• cell-to-cell communication

• protein synthesis

A plant uses cellular respiration to generate usable chemical energy, released within the cell as molecules of what substance?

• ATP

• chlorophyll

• glucose

• carbon dioxide

Which statement is correct about the Krebs cycle?

• The Kreb cycle produces electron carriers for the electron transport chain.

• In the Krebs cycle, carbon dioxide is used to make glucose.

• Acetyl-CoA combines with pyruvic acid to make glucose in the Krebs cycle.

• Oxygen is a waste product of the Krebs cycle.

During the electron transport chain, which process leads to the production of large amounts of ATP?

• Water is broken down into oxygen and hydrogen ions to produce ATP.

• High-energy electrons pump hydrogen ions against the concentration gradient.

• NADH combines with FADH2 to produce large amounts of ATP.

• Energy carriers release carbon dioxide that flows through the mitochondrial membrane.

How may a gene be defined?

• a segment of a protein

• a complete protein

• a segment of DNA

• a part of the cell membrane

Which process occurs in body (somatic) cells?

• Mitosis separates one cell into four cells.

• Meiosis splits the chromosome numbers by four.

• Meiosis produces all of the new body cells.

• Mitosis makes copies of the cell nuclei.