1. which of the following statements is true?

1. Which of the following statements is true?

2. Since all cells carry out cellular respiration, they contain mitochondria.

3. A cell cannot be subdivided into smaller units that maintain the living state.
4. Plant cells contain chloroplasts and no mitochondria, while animal cells contain mitochondria and no chloroplasts.

5. The cell membrane's function is to prevent the diffusion of any substance into or out of the cell.

6. A biologist discovers a new unicellular organism and classifies it as a prokaryote. The cell is very small, contains a cell membrane, cytoplasm, DNA, and no other cell organelles. Which statement below represents a correct response to the biologist's discovery and classification?

7. The organism is a prokaryote because it lacks cell organelles such as mitochondria, Golgi apparatus, and endoplasmic reticulum.

8. The organism is a prokaryote because it is small and simple in structure.
9. The organism is a eukaryote because it has a nucleus.

10. The organism is a eukaryote because it has a cell membrane, cytoplasm, and DNA.

11. Which structures are used by the cell for storing and maintaining biological information that will be passed to daughter cells when the cell divides?

12. Nucleus, chromatin

13. Nucleolus, ribosome
14. Vacuole, lysosome

15. Golgi apparatus, endoplasmic reticulum

16. What would most likely happen to cells placed in fresh water?

17. Water would flow out of them because they are hypotonic to the external environment.

18. Water would flow into them because they are hypotonic to the external environment.
19. Water would flow out of them because they are hypertonic to the external environment.

20. Water would flow into them because they are hypertonic to the external environment.

21. Why does photosynthesis require water?

22. Because water provides oxygen atoms.

23. Because water provides electrons.
24. Because water accepts protons.

25. Because water acts as a catalyst.

26. The following aquariums were set up with the same volume of water. (Elodea is an aquatic green plant.)

27. Aquarium 1: Elodea only

28. Aquarium 2: Elodea and an aquatic snail
29. Aquarium 3: Aquatic snail only

Which aquariums will establish a cycle of carbon dioxide and oxygen gas flow if placed in the dark for several weeks?

• 1, 2, and 3
• 2 and 3
• 3 only

• None

• Which of the following are energy carrier molecules involved in photosynthesis?

• ATP only

• ATP and NADPH
• ATP, NADH, and FADH2

• NADPH, NADH, and FADH2

• Which of the following shows the correct order of events during cellular respiration?

• Pyruvate oxidation, glycolysis, electron transport, Krebs cycle

• Glycolysis, Krebs cycle, pyruvate oxidation, electron transport
• Glycolysis, pyruvate oxidation, Krebs cycle, electron transport

• Pyruvate oxidation, Krebs cycle, glycolysis, electron transport

• How do the quantities of ATP formed during aerobic and anaerobic respiration compare?

• Two times more ATP is formed during aerobic respiration than during anaerobic respiration.

• Four times more ATP is formed during aerobic respiration than during anaerobic respiration.
• Eight times more ATP is formed during aerobic respiration than during anaerobic respiration.

• Eighteen times more ATP is formed during aerobic respiration than during anaerobic respiration.

• Wine is made by mixing yeast with grapes and allowing the yeast cells to undergo fermentation. Sparkling wine is a type of wine that contains high levels of dissolved carbon dioxide. What is the source of the carbon atoms in the carbon dioxide found in sparkling wine?

• Ethanol

• Lactic acid
• Methane
• Glucose