Cell Structure & Organelles MCQs with Answers

During prophase, the centrosome divides into two halves. Which structure is formed around each half of the centrosome?

• A.Astral rays
• B.Spindle fibers
• C.Centromeres
• D.Kinetochores

Which organelle is abundant in liver cells due to their role in detoxification of poisons and drugs?

• A.Rough Endoplasmic Reticulum (RER)
• B.Smooth Endoplasmic Reticulum (SER)
• C.Golgi Apparatus
• D.Mitochondria

Which cell organelle contains its own DNA?

• A.Ribosome
• B.Mitochondria
• C.Golgi apparatus
• D.Endoplasmic reticulum

In which stage of mitosis do chromatin become thickened, shortened, and visible under a microscope as chromosomes?

• A.Prophase
• B.Metaphase
• C.Anaphase
• D.Telophase

Which support cell shape and fix organelles in place?

• A.Microtubules
• B.Intermediate filaments
• C.Microfilaments
• D.Centrioles

_ is a thick, viscous liquid which fills the space between the nucleus and the cell membrane.

• A.Protoplasm
• B.Cytoplasm
• C.Nucleoplasm
• D.Cell sap

Energy for cell function is produced in _?

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

Chromosomes become visible at which cell stage?

• A.Prophase
• B.Prometaphase
• C.Metaphase
• D.Anaphase

Which of the following is correctly paired with its function?

• A.Ribosomes : Lipid synthesis
• B.Mitochondria : Protein synthesis
• C.Golgi bodies : Formation of polysaccharides
• D.Lysosomes : ATP production

DNA is chiefly found in ?

• A.Nucleus
• B.Cytoplasm
• C.Ribosomes
• D.Cell membrane