Read the following statements and choose the option which is true for them.
Statement-I: Telocentric chromosomes have no centromere.
Statement-II: The satellite chromosomes have secondary constriction.
1. Only statement-I is correct
2. Only statement-II is correct
3. Both statements are correct
4. Both statements are incorrect

Subtopic:  Nucleus |
 79%
From NCERT
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Identify the correct statements:
I: Robert Hooke first used the word cell to name the microscopic honeycomb cavities in cork.
II: Anton Von Leeuwenhoek first saw and described a living cell.
III: Robert Brown discovered the nucleus.
IV: George Palade first observed centrosomes in animal cells.
 
1. I and II only
2. Only I, II and III
3. Only III and IV
4. I, II, III and IV
Subtopic:  Introduction to Cell |
 79%
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The type of mictotubule arrangement shown in the given diagram can be present in:

I. Centriole
II. Cilia/flagella
III. Basal body
1. Only II
2. Only I
3. Both I and II
4. Both I and III
 
Subtopic:  Cytoskeleton | Centrosomes | Cilia & Flagella |
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Consider the following statements:
I: Secondary constrictions are found at variable locations in few chromosomes.
II: Acrocentric chromosome has a terminal centromere.
III: Chromosomes are visible only in dividing cells.
IV: All chromosomes have a shorter ‘p’ arm and a longer ‘q’ arm.
V: Human cell has about two meters of DNA located on each of the twenty three homologous pairs of chromosomes.
VI: Kinetochore is made up of spindle and is present around the secondary constriction.
VII: Secondary constrictions are most easily stained portions of a chromosome.
The number of correct statements is:
1. 0
2. 1
3. 2
4. 3

 
Subtopic:  Nucleus: Chromosomes |
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Column I Column II
A Chloroplasts P Oxidative Phosphorylation
B Mitochondria Q Photophosphorylation
C Golgi Apparatus R Synthesis of glycoproteins and glycolipids
D Ribosomes S Peptide synthesis
               
Codes:
A B C D
1. P Q R S
2. Q P R S
3. Q P S R
4. P Q S R

 
Subtopic:  Plastids | Mitochondria | Golgi Apparatus | Ribosome and Inclusion Bodies |
 81%
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What will be true for endoplasmic reticulum?
I: They are not included in the endomembrane system.
II: Rough ER is the major site for synthesis of lipids.
III: They are not bound by a membrane
1. Only II
2. Only I
3. Both I and III
4. None
 
Subtopic:  Intro to Endomembrane System: Endoplasmic Reticulum |
 74%
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In a plasma membrane of a typical animal cell:
I. The major lipids are phospholipids
II. Peripheral proteins are only partially buried in the membrane    
III. Lateral movement of lipids in protein bilayer is measured as its fluidity
 
1. Only I is correct
2. Only III is correct
3. Only II and III are correct
4. Only I and III are correct
Subtopic:  Cell Membrane |
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Most prokaryotic cells, particularly the bacterial cells, have a chemically complex cell envelope, where:
1. the outermost layer is the cell wall
2. all three layers act together as a single protective unit
3. the cell membrane staining properties make some bacteria Gram positive
4. carbohydrate is the biomolecule absent in all three layers

 
Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
 77%
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Which layer of the plant cell wall will be outer-most [away from membrane]?
1. Glycocalyx
2. Middle lamella
3. Primary cell wall
4. Secondary cell wall
 
Subtopic:  Cell Wall |
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Select the alternative giving correct identification and function of the organelle 'A' in the diagram:
1. Mitochondria - produce cellular energy in the form of ATP
2. Golgi body - provides packaging material
3. Lysosomes - secrete hydrolytic enzymes
4. Endoplasmic reticulum - synthesis of lipids
Subtopic:  Eukaryotic Cell Architecture: Types | Eukaryotic Cell Orgenelle |
 94%
From NCERT
NEET - 2013

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