Question

what is the role of atp in cellular processes? a. it acts as the energy currency of the cell. b. it transports oxygen into the mitochondrion. c. it breaks down glucose into water. d. it stores genetic information. what role does oxygen play in the electron transport chain? a. it combines with electrons and hydrogen ions to form water. b. it transports pyruvate into the mitochondrion. c. it is converted into atp. d. it breaks down glucose into pyruvate. what happens to glucose during glycolysis? a. it is broken down into pyruvate and atp. b. it is converted into water and carbon - dioxide. c. it is stored in the mitochondrion for later use. d. it combines with oxygen to produce energy. where does glycolysis occur within a cell? a. nucleus b. mitochondrion c. endoplasmic reticulum d. cytoplasm which process follows glycolysis in the absence of oxygen? a. electron transport chain b. citric acid cycle c. fermentation d. photosynthesis what is the overall outcome of cellular respiration? a. the breakdown of atp into glucose and water. b. the conversion of glucose into atp, water, and carbon dioxide. c. the production of glucose and oxygen. d. the storage of atp in the cytoplasm. what is the primary purpose of cellular respiration? a. to convert energy from nutrients into atp. b. to break down dna. c. to synthesize proteins.

Explanation:

1. ATP is known as the energy - currency of the cell, powering various cellular processes.
2. In the electron transport chain, oxygen acts as the final electron acceptor, combining with electrons and hydrogen ions to form water.
3. Glycolysis is the first step of cellular respiration where glucose is broken down into pyruvate and a small amount of ATP is produced.
4. Glycolysis occurs in the cytoplasm of the cell.
5. In the absence of oxygen, fermentation follows glycolysis to regenerate NAD+ for continued glycolysis.
6. The overall outcome of cellular respiration is the conversion of glucose into ATP, water, and carbon dioxide.
7. The primary purpose of cellular respiration is to convert energy from nutrients into ATP.

Answer:

1. A. It acts as the energy currency of the cell.
2. A. It combines with electrons and hydrogen ions to form water.
3. A. It is broken down into pyruvate and ATP.
4. D. Cytoplasm
5. C. Fermentation
6. B. The conversion of glucose into ATP, water, and carbon dioxide.
7. A. To convert energy from nutrients into ATP.