Extranuclear chromosomes occur in:

1. Peroxisome and ribosome 2. Chloroplast and mitochondria
3. Mitochondria and ribosome 4. Chloroplast and lysosome

Subtopic:  Plastids | Mitochondria |
 86%
From NCERT
AIPMT - 2001
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Element necessary for the middle lamella:
1.  Ca
2.  Zn
3.  K
4.  Cu

Subtopic:  Cell Wall |
 94%
From NCERT
AIPMT - 2001
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Microtubules are absent in:
1.  Mitochondria
2.  Flagella
3.  Spindle fibers
4.  Centriole

Subtopic:  Cilia & Flagella |
 81%
From NCERT
AIPMT - 2001
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The difference in gram ⊕ and gram Θ bacteria is due to:
1. Cell wall
2. Cell membrane
3. Ribosome
4. Cytoplasm

Subtopic:  Bacterial Staining & Shape |
 73%
From NCERT
AIPMT - 2001
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When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :

1. Sub-metacentric

2. Acrocentric

3. Metacentric

4. Telocentric

Subtopic:  Nucleus: Chromosomes |
 89%
From NCERT
NEET - 2021
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Match List - I with List - II

 List -I   List - II
a. Cristae i. Primary constriction in chromosome
b. Thylakoids ii. Disc-shaped sacs in Golgi apparatus
c. Centromere iii. Infoldings in mitochondria
d. Cisternae      iv. Flattened membranous sacs in stroma of plastids

Choose the correct answer from the options given below: 

(a) (b) (c) (d)
1. (iii) (iv) (i) (ii)
2. (ii) (iii) (iv) (i)
3. (iv) (iii) (ii) (i)
4. (i) (iv) (iii) (ii)
Subtopic:  Plastids | Mitochondria | Golgi Apparatus | Nucleus: Chromosomes |
 90%
From NCERT
NEET - 2021
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Which of the following is an incorrect statement?

1. The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm.
2. Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm.
3. Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles.
4. Microbodies are present both in plant and animal cells.

Subtopic:  Nucleus | Microbodies |
 73%
From NCERT
NEET - 2021
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The organelles that are included in the endomembrane system are:

1.  Golgi complex, Mitochondria, Ribosomes, and Lysosomes
2. Golgi complex, Endoplasmic reticulum, Mitochondria, and Lysosomes
3. The endoplasmic reticulum, Mitochondria, Ribosomes, and Lysosomes
4. The endoplasmic reticulum, Golgi complex, Lysosomes, and Vacuoles

Subtopic:  Endomembrane System |
 83%
From NCERT
NEET - 2021
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Chromosomes in a bacterial cell can be 1–3 in number and:
 

1. Are always circular
2. Are always linear
3. Can be either circular or linear, but never both within the same cell
4. Can be circular as well as linear within the same cell
Subtopic:  Details of Prokaryotic Cell Structure |
 50%
From NCERT
AIPMT - 2003
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Lysosome contains:

1. Oxidative enzymes 2. Hydrolytic enzymes
3. Reductive enzymes 4. Anabolic enzymes
Subtopic:  Lysosomes |
 96%
From NCERT
AIPMT - 2000
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