Cell structure And Function — Biology MCQs (Class 11)
Free chapter-wise Biology MCQs with answers for MDCAT, FSc and entry tests.
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#57 A special protein carrier in plasma membrane is:
A) Catalase
B) Lipase
C) Permease
D) Arginase
#58 Smooth endoplasmic reticulum makes:
A) Enzymes
B) Protein
C) Sugar
D) Lipids
#59 A cell fails to detoxify the waste substances produced in it because it does not possess enough:
A) Lysosomes
B) Ribosome
C) Rough endoplasmic reticulum
D) Smooth endoplasmic reticulum
#60 The rough endoplasmic reticulum is involved in the synthesis of:
A) Proteins
B) Carbohydrates
C) Phospholipids
D) Terpenoids
#61 “80-S” ribosome is formed by the combination of:
A) 30S and 40S
B) 70S and 10S
C) 50S and 30S
D) 60S and 40S
#62 The attachment of two sub units of ribosomes on a single mRNA is controlled by:
A) Mg+ ions
B) Na- ions
C) Proteins
D) Ribosomal RNA
#63 The size of ribosome in prokaryotic cell is:
A) 40S
B) 60S
C) 70S
D) 80S
#64 Which of the following do not play a role in intracellular movement?
A) Microfilaments and intermediate filaments
B) Microfilaments and microtubules
C) Intermediate filaments and microtubules
D) Only microfilaments
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