Plant Structure problems
- 1. The element neon (Ne) has eight electrons in its outermost electron shell. How many covalent bonds will Ne readily form?
Options- A. None
- B. One
- C. Two
- D. Four Discuss
Correct Answer: None
- 2. The cell membrane is made up of
Options- A. lipoproteins
- B. cellulose
- C. phospholipids
- D. phosphoproteins Discuss
Correct Answer: lipoproteins
- 3. Any system that is not at equilibrium
Options- A. is thermodynamically unstable, although it may be kinetically stable
- B. is kinetically unstable, although it may be thermodynamically stable
- C. is rushing toward equilibrium at a very rapid rate
- D. requires an enzyme to reach equilibrium Discuss
Correct Answer: is thermodynamically unstable, although it may be kinetically stable
- 4. Cellular organelles are embedded in the
Options- A. endoplasmic reticulum
- B. cristae
- C. cytosol
- D. microtubules Discuss
Correct Answer: cytosol
- 5. If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor?
Options- A. Cytochrome c red
- B. Cytochrome c peroxidase
- C. Ubiquinol (UQH2)
- D. Cytochrome c oxidase Discuss
Correct Answer: Ubiquinol (UQH2)
- 6. Which part of a plant contains the male sex cell?
Options- A. Ova
- B. Style
- C. Stamen
- D. Pollen Discuss
Correct Answer: Pollen
- 7. The fluid matrix of a cell is called the
Options- A. nucleus
- B. cytosol
- C. cytoskeleton
- D. endoplasmic reticulum Discuss
Correct Answer: cytosol
- 8. Which is not true about a photon?
Options- A. It is a packet of light energy
- B. The shorter the wavelength, the greater the energy of the photons
- C. It is trapped by photosynthetic unit
- D. It donates electron to reduce carbon dioxide to glucose Discuss
Correct Answer: It donates electron to reduce carbon dioxide to glucose
- 9. Water content of active protoplasm is
Options- A. 10%
- B. 40%
- C. 70%
- D. 90% Discuss
Correct Answer: 90%
- 10. Which of the following statements about the outer mitochondrial membrane is not true?
Options- A. The outer membrane is impermeable to hydrogen ions
- B. The outer membrane is highly permeable to substances of small molecular weight
- C. The outer membrane is about 50% lipid and 50% protein by weight
- D. The outer membrane contains porins Discuss
Correct Answer: The outer membrane is impermeable to hydrogen ions
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