Which one of the following cellular parts is correctly described ?

1. Thylakoids - flattened membranous sacs forming the grana of chloroplasts
2. Centrioles - sites for active RNA synthesis
3. Ribosomes - those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s)
4. Lysosomes - optimally active at a pH of about 8.5
Subtopic:  Plastids |
 88%
Level 1: 80%+
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Match the following and select the correct answer :

(a) Centriole (i) Infoldings in mitochondria
(b) Chlorophyll (ii) Thylakoids
(c) Cristae (iii) Nucleic acids
(d) Ribozymes (iv) Basal body cilia or flagella
 
A B C D
1. (iv) (ii) (i) (iii)
2. (i) (ii) (iv) (iii)
3. (i) (iii) (ii) (iv)
4. (iv) (iii) (i) (ii)
Subtopic:  Plastids | Mitochondria | Cilia & Flagella |
 90%
Level 1: 80%+
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Extranuclear chromosomes occur in:

1. Peroxisome and ribosome 2. Chloroplast and mitochondria
3. Mitochondria and ribosome 4. Chloroplast and lysosome
Subtopic:  Plastids | Mitochondria |
 87%
Level 1: 80%+
AIPMT - 2001
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Match the columns and identify the correct option.

Column I Column II
A. Thylakoids 1.

Disc-shaped sacs in Golgi apparatus

B. Cristae 2.

Condensed structure of DNA

C. Cisternae 3.

Flat membranous sacs in stroma

D. Chromatin 4.

Infolding in mitochondria

 
A B C D
1. 4 3 1 2
2. 3 4 1 2
3. 3 1 4 2
4. 3 4 2 1
Subtopic:  Plastids | Mitochondria | Golgi Apparatus | Nucleus: Chromosomes |
 82%
Level 1: 80%+
NEET - 2015
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Chlorophyll occurs in chloroplast in

1. Inner membrane 2. Thylakoid membrane
3. Outer membrane 4. Stroma
Subtopic:  Plastids |
 76%
Level 2: 60%+
Please attempt this question first.
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Please attempt this question first.

Which of the following statements is wrong?

1. Both chloroplasts and mitochondria have an internal compartment or the thylakoid space bounded by the thylakoid membrane.
2. Both chloroplasts and mitochondria contain DNA.
3. The chloroplasts are generally much larger than mitochondria.
4. Both chloroplasts and mitochondria are covered by double membrane.
Subtopic:  Plastids | Mitochondria |
 73%
Level 2: 60%+
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Extranuclear DNA is found in:

1. Lysosome and chloroplast
2. Chloroplast and mitochondria
3. Mitochondria and lysosome
4. Golgi and E.R.
Subtopic:  Plastids | Mitochondria |
 90%
Level 1: 80%+
AIPMT - 2000
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Match List - I with List - II

List - I List - II
(a) Chromoplasts (i) Proteins
(b) Amyloplasts (ii) Oil and fats
(c) Elaioplasts  (iii) Starch
(d) Aleuroplasts (iv) Carotene

Choose the correct answer from the option given below

(a) (b) (c) (d)
1. (iv) (i) (iii) (ii)
2. (iv) (iii) (ii) (i)
3. (iv) (ii) (iii) (i)
4. (iv) (iii) (i) (ii)
Subtopic:  Plastids |
 89%
Level 1: 80%+
NEET - 2022
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