Plant Structure problems
- 1. Lysosomes are associated with
Options- A. photosynthesis
- B. respiration
- C. storage
- D. digestion Discuss
Correct Answer: digestion
- 2. Which molecule serves as a carrier of fatty acids in mitochondria?
Options- A. Acetyl-CoA
- B. Carnitine
- C. Dolichol
- D. Malonyl-CoA Discuss
Correct Answer: Carnitine
- 3. If the ester bonds of a triacylglycerol molecule's are broken then the kind of molecule, which would be soluble in water, is
Options- A. fatty acid
- B. steroid
- C. glycogen
- D. glycerol Discuss
Correct Answer: glycerol
- 4. Which of the following elements is likely to form the least polar covalent bond with hydrogen?
Options- A. Nitrogen
- B. Oxygen
- C. Carbon
- D. Phosphorus Discuss
Correct Answer: Carbon
- 5. In plant cells, which of the following is not a function of the large central vacuoles of plant cells?
Options- A. Storage of food
- B. Support
- C. Contractile regulation of
- D. Waste storage water content Discuss
Correct Answer: Contractile regulation of
- 6. Cellular metabolism is an example of
Options- A. equilibrium metabolism
- B. steady-state metabolism
- C. a series of reactions occurring under standard conditions
- D. a series of reactions that defy the second law of thermodynamics Discuss
Correct Answer: steady-state metabolism
- 7. Which of the following experimental results does not support Mitchell's chemiosmosis theory?
Options- A. Electron transport in isolated mitochondria was shown to result in acidification of the medium
- B. Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis
- C. Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium
- D. An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport Discuss
Correct Answer: Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis
- 8. The mitochondria of a eukaryotic cell is the site of
Options- A. photosynthesis
- B. fatty acid metabolism
- C. cellular respiration
- D. protein synthesis Discuss
Correct Answer: cellular respiration
- 9. The cell theory states:
Options- A. Cells form as organelles and molecules become grouped together in an organized manner.
- B. The normal functioning of an organism does not depend on its individual cells.
- C. The cell is the basic unit of life.
- D. Only eukaryotic organisms are made of cells. Discuss
Correct Answer: The cell is the basic unit of life.
- 10. As the size of a cell decreases, the ratio of its surface area to volume:
Options- A. increases
- B. decreases
- C. stays the same
- D. None of these Discuss
Correct Answer: stays the same
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