Cell Structure & Organelles MCQs with Answers

Living cell contains a material called ?

• A.Cytoplasm
• B.Protoplasm
• C.Nucleoplasm
• D.None of these

Which structure is the site of the synthesis of proteins that may be exported from the cell?

• A.Rough endoplasmic reticulum
• B.Smooth endoplasmic reticulum
• C.Golgi apparatus
• D.Mitochondria

The chemical material of a chromosome is called _?

• A.Histone
• B.Cytoplasm
• C.Nucleoplasm
• D.Chromatin

The process of ATP synthesis through a combination of electrochemical and osmotic events is known as:

• A.Chemiosmosis
• B.Substrate-level phosphorylation
• C.Photophosphorylation
• D.Oxidative phosphorylation

Which extracellular matrix generally consists of a web of fibers embedded in a liquid, jellylike, or solid foundation, and within the matrix are numerous cells called fibroblasts?

• A.Secrete fiber proteins
• B.Transport oxygen
• C.Conduct nerve impulses
• D.Produce antibodies

All eukaryotes have cells with a membrane-bound nucleus containing ?

• A.RNA
• B.DNA
• C.Proteins
• D.Ribosomes

Assembly of two subunit 40S and 60S of the ribosomes is?

• A.70 S unit
• B.90 S unit
• C.100 S unit
• D.80 S unit

Aerobic respiration occurs in eukaryotic organelles called ?

• A.Ribosomes
• B.Mitochondria
• C.Lysosomes
• D.Golgi apparatus

The rates of exchange for nutrients, waste products, and gases are proportional to _?

• A.Cell volume
• B.Membrane surface area
• C.Cytoplasmic density
• D.Nuclear size

Past Paper MCQ

Which protein factory for RNA?

• A.Golgi apparatus
• B.Mitochondria
• C.Nucleus
• D.Ribosomes