The transport of sodium and potassium ions through the membranes is an example of

(1)transport against the concentration gradient

(2)active process

(3)passive process

(4)Both A and B

Subtopic:  Cell Membrane |
 79%
From NCERT
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In which of the following processes the movement of substance takes place along the concentration gradient

(1)Diffusion

(2)Osmosis

(3)Active transport

(4)Both A and B

Subtopic:  Cell Membrane |
 85%
From NCERT
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Which of the following statement is not true?

(1)Plasma membrane is selectively permeable

(2)Polar molecules cannot pass through the polar lipid bilayer

(3)Neutral molecules pass the membranes through diffusion

(4)Active transport is exhibited with the expenditure of ATP

Subtopic:  Cell Membrane |
 78%
From NCERT
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Which of the following is the part of the Endomembrane system

(1)Endoplasmic reticulum, golgi complex, lysosomes and vacuoles

(2)Golgi complex and ER only

(3) Endoplasmic reticulum, golgi complex, and vacuoles

(4) Nucleus, Endoplasmic reticulum, golgi complex, and vacuoles

Subtopic:  Endomembrane System |
 90%
From NCERT
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How many of the following are not the part of Endomembrane System

Endoplasmic reticulum, golgi complex, lysosomes and vacuoles, mitochondria, chloroplast, Nucleus, Peroxisomes

 

(1)5

(2)6

(3)4

(4)3

Subtopic:  Cell Membrane |
 85%
From NCERT
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Endomembrane system is formed because of the

(1) coordinated functions of the membranous organelles

(2) coordinated functions of the membraneless organelles

(3) coordinated functions of all cell organelles

(4)All of these

Subtopic:  Endomembrane System |
 76%
From NCERT
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Which of the following is true for lysosomes

(1)membrane bound vesicles

(2)formed by golgibody

(3)rich in hydrolytic enzymes

(4)All of the above

Subtopic:  Lysosomes |
 95%
From NCERT
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Hydolytic enzymes comprises of which of the following

(1)lipases

(2)proteases

(3)carbohydrases

(4)All of these

Subtopic:  Lysosomes |
 96%
From NCERT
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Hydrolytic enzymes are active at

(1)acidic pH

(2)basic pH

(3)Neutral pH

(4)Both A and B

Subtopic:  Lysosomes |
 91%
From NCERT
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How many of the following biomolecules can be digested by lysosomes?

(Carbohydrates, proteins, lipids, nucleic acids)

(1)4

(2)3

(3)2

(4)1

Subtopic:  Lysosomes |
 74%
From NCERT
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