Cell is the fundamental structural and functional unit of all living organisms because:

(1) Anything less than a complete structure of a cell does not ensure independant living.

(2) The metabolic reactions can only occur inside a living cell.

(3) Nucleic acids present in the cells ensure living state.

(4) The membrane bound organelles cause differentiation for proper functioning.

Subtopic:  Introduction to Cell |
 86%
From NCERT
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Who concluded, based on his studies on plant tissues, that the presence of cell wall is a unique character of plant cells ?

(1) Mathias Schleiden

(2) Theodore Schwann

(3) Rudolph Virchow

(4) Robert Hooke

Subtopic:  Cell Wall |
 67%
From NCERT
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Mesosomes in prokaryotes do not help in:

1. Cell wall formation

2. DNA replication

3. Respiration

4. Photosynthesis

 83%
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The endomembrane system of a eukaryotic cell does not include:

1. Endoplasmic reticulum

2. Lysosome

3. Vacuole

4. Peroxisome

Subtopic:  Endomembrane System (Endoplasmic Reticulum) |
 93%
From NCERT
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The cis and trans faces of the Golgi Apparatus are:

1. Similar but not interconnected

2. Similar and interconnected

3. Entirely different but interconnected

4. Entirely diffrent and not interconnected

Subtopic:  Golgi Apparatus |
 84%
From NCERT
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Plastids used in storing proteins are called as:

(1) Amyloplasts

(2) Aleuroplasts

(3) Elaioplasts

(4) Chromoplasts

Subtopic:  Plastids |
 88%
From NCERT
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A centriole-like structure, from which the cilium and the flagellum emerge, is the:

1. Centrosome

2. Basal body

3. Axoneme

4. Vimentin

Subtopic:  Cilia & Flagella |
 79%
From NCERT
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The outer membrane of the nucleus:

I. is continuous with the Endoplasmic reticulum

II. does not bear ribosomes.

1. Only I is correct

2. Only II is correct

3. Both I and II are correct

4. Both I and II are incorrect

Subtopic:  Nucleus |
 77%
From NCERT
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If the centromere is situated close to the end of a chromosome, it is called as:

1. Metacentric

2. Submetacentric

3. Acrocentric

4. Telocentric

Subtopic:  Nucleus: Chromosomes |
 74%
From NCERT
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The lipid component of the plasma membrane mainly consists of:

1. Triglycerides

2. Cholesterol

3. Phosphoglycerides

4 Proteins

Subtopic:  Cell Membrane |
 86%
From NCERT
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