The tail of the phospholipid molecule:

1. is hydrophilic and composed of phosphate
2. is hydrophilic and composed of saturated hydrocarbons
3. is hydrophobic and composed of saturated hydrocarbons
4. is hydrophobic and composed of unsaturated hydrocarbons

Subtopic:  Cell Membrane |
 58%
From NCERT
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In animal cells, lipid-like steroidal hormones are synthesized in the:

1. Nucleus

2. Rough endoplasmic reticulum

3. Smooth endoplasmic reticulum

4. Golgi apparatus

Subtopic:  Intro to Endomembrane System: Endoplasmic Reticulum |
 84%
From NCERT
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Unless specifically stained by a vital stain like Janus Green, which of the following will not be visible under a microscope?

1. Rough endoplasmic reticulum

2. Smooth endoplasmic reticulum

3. Golgi apparatus

4. Mitochondria

Subtopic:  Mitochondria |
 78%
From NCERT
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Fat soluble pigments like xanthophylls are present in:

1. Chromoplasts

2. Aleuroplasts

3. Elaioplasts

4. Amyloplasts

Subtopic:  Plastids |
 69%
From NCERT
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Proteins that are to be used outside the cell are synthesized:

1. in the mitochondria

2. on the rough endoplasmic reticulum

3. on the smooth endoplasmic reticulum

4. on free ribosomes

Subtopic:  Endomembrane System (Endoplasmic Reticulum) |
 67%
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The two types of cellular organelles that transform energy are:

(1) Chromoplasts and Leucoplasts

(2) Mitochondria and Chloroplasts

(3) Mitochondria and Endoplasmic reticulum

(4) Chloroplasts and Golgi apparatus

 

Subtopic:  Plastids | Mitochondria |
 82%
From NCERT
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The arrangement of outer and central microtubules in a cilium is called the:

1. 9 + 1 pattern

2. 9 + 0 pattern

3. Flagellin pattern

4. 9 + 2 pattern

Subtopic:  Cilia & Flagella |
 83%
From NCERT
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Identify the correct statement regarding the part of a cell, the structure of which is shown in the given diagram:

 

1. It is not found in the plant cells
2. It serves to provide an attachment with a surface for a bacterial cell
3. The structure is made of a protein called flagellin
4. It can be used for movement by a eukaryotic cell
Subtopic:  Cilia & Flagella |
From NCERT
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What is true regarding the chromosome shown in the diagram given below?

    

1. It is a metacentric chromosome with A called satellite and B called secondary constriction

2. It is a metacentric chromosome with B called satellite and A called secondary constriction

3. It is a submetacentric chromosome with A called satellite and B called secondary constriction

4. It is a submetacentric chromosome with B called satellite and A called secondary constriction

Subtopic:  Nucleus: Chromosomes |
 71%
From NCERT
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In the given diagram of chloroplast, enzymes required for the synthesis of carbohydrates and proteins are located in:

  

1. A

2. B

3. C

4. D

Subtopic:  Plastids |
 66%
From NCERT
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