MCQ’S ON CHLOROPLAST
Q. The bright colours of ripe fruits is due to
(a) Chromoplasts
(b) Chloroplasts
(c) Amyloplasts
(d) Leucoplasts
Answer: (a)
Q. Factory for synthesis of sugars in autotrophic eukaryotes
(a) Mitochondria
(b) Chloroplast
(c) Ribosome
(d) Endoplasmic reticulum
Answer: (b)
Q. Stroma is the ground material of which of these
(a) Ribosomes
(b) Lysosomes
(c) Mitochondria
(d) Chloroplasts
Answer: (d)
Q. When green tomatoes fruits turn to red, then
(a) new chromoplasts are formed
(b) chloroplasts are disintegrated and get converted into chromoplasts
(c) chromoplasts are changed to chloroplasts
(d) none of these
Answer: (b)
Q. The thylakoid in chloroplasts are arranged as
(a) Stacked discs
(b) interconnected disc
(c) interconnected sacs
(d) none of the above
Answer: (a)
Q. If we separate the cell organelles of a living cell, then which part should be alive
(a) Ribosome
(b) cell wall
(c) endoplasmic reticulum
(d) chloroplast
Answer: (d)
Q. Extranuclear DNA is found in
(a) Ribosome
(b) Chloroplast
(c) Golgi apparatus
(d) endoplasmic reticulum
Answer: (b)
Q. In chloroplasts, where do light reactions occur
(a) outer membrane
(b) inner membrane
(c) thylakoid membrane
(d) stroma
Answer: (c)
Q. In chloroplasts, the parallel layering of membranes is suited for
(a) maximum exposure of enzymes
(b) maximum light absorption
(c) minimum light absorption so cells can maintain their temperature
(d) all of these
Answer: (b)
Q. Chlorophyll in chloroplasts is present in
(a) Stroma
(b) outer membrane
(c) thylakoids
(d) inner membrane
Answer: (c)
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MCQ’S ON REGENERATION
1. Repetitive regeneration can be seen in
(a) Molluscs
(b) Tadpole
(c) Hydra
(d) None of these
Answer: (c)
2. The method of asexual reproduction that can be called as a mode of regeneration is
(a) fragmentation
(b) budding
(c) sporulation
(d) binary fission
Answer: (a)
3. Regeneration can be seen in which of the following
(a) Plasmodium
(b) Spongilla
(c) Earthworm
(d) Starfish
Answer: (d)
4. Which of the following organs can be regenerated in Echinodermata?
(a) Eyes
(b) Pedicellariae
(c) Arms and disc
(d)Digestive system
Answer: (c)
5. The damaged leg is not regenerated in______.
(a) Frog
(b) Crab
(c) Salamander
(d) Frog’s tadpole
Answer: (a)
6. The repair by cell division in the damaged tissue is called ______.
(a) Exponential growth
(b) Deaccelerating growth
(c) Epimorphosis regeneration
(d) Morphallaxis regeneration
Answer: (c)
7. Restorative regeneration is _______.
(a) Healing of wounds
(b) Formation of a new entity from a piece of the body of the parent
(c) A regular process in which the dead and worn-out cells of some organs are continuously replaced by new cells
(d) All of these
Answer: (c)
8. Ability to give rise to a new individual entity from body parts is
(a) Reproduction
(b) Fragmentation
(c) Regeneration
(d) Fission
Answer: (c)
9. Regeneration of a limb or tail is an example of
(a) Epimorphosis
(b) Autotomy
(c) Compensatory hypertrophy
(d) Morphallaxis
Answer: (a)
10. Epimorphosis is regeneration through
(a) The repatterning of existing cells as seen in hydra
(b) The reinitiation of division in existing cells, followed by patterning, as occurs in amphibians such as newts
(c) The repatterning of existing cells as seen in amphibians
(d) The reinitiation of embryonic growth from remaining cells as seen in Hydra
Answer: (b)
