The transport of sodium and potassium ions through the membranes is an example of
(A)transport against the concentration gradient
(B)active process
(C)passive process
(D)Both A and B
Difficulty Level:
In which of the following processes the movement of substance takes place along the concentration gradient
(A)Diffusion
(B)Osmosis
(C)Active transport
(D)Both A and B
Difficulty Level:
Which of the following statement is not true?
(A)Plasma membrane is selectively permeable
(B)Polar molecules cannot pass through the polar lipid bilayer
(C)Neutral molecules pass the membranes through diffusion
(D)Active transport is exhibited with the expenditure of ATP
Difficulty Level:
Which of the following is the part of the Endomembrane system
(A)Endoplasmic reticulum, golgi complex, lysosomes and vacuoles
(B)Golgi complex and ER only
(C) Endoplasmic reticulum, golgi complex, and vacuoles
(D) Nucleus, Endoplasmic reticulum, golgi complex, and vacuoles
Difficulty Level:
How many of the following are not the part of Endomembrane System
Endoplasmic reticulum, golgi complex, lysosomes and vacuoles, mitochondria, chloroplast, Nucleus, Peroxisomes
(A)5
(B)6
(C)4
(D)3
Difficulty Level:
Endomembrane system is formed because of the
(A) coordinated functions of the membranous organelles
(B) coordinated functions of the membraneless organelles
(C) coordinated functions of all cell organelles
(D)All of these
Difficulty Level:
Which of the following is true for lysosomes
(A)membrane bound vesicles
(B)formed by golgibody
(C)rich in hydrolytic enzymes
(D)All of the above
Difficulty Level:
Hydolytic enzymes comprises of which of the following
(A)lipases
(B)proteases
(C)carbohydrases
(D)All of these
Difficulty Level:
Difficulty Level:
How many of the following biomolecules can be digested by lysosomes?
(Carbohydrates, proteins, lipids, nucleic acids)
(A)4
(B)3
(C)2
(D)1
Difficulty Level:
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