CELL ORGANELLES
1. Chromatin is a component of the
A. nucleolus
B. nucleus
C. cytoplasm
D. ribosome
2. All the following are true about Ribosomes
EXCEPT:
A. They are membranous organelles
B. They are attached to rough ER
C. Play an important role in protein synthesis
D. They are composed of rRNA & proteins
3. Along which filaments of the cytoskeleton the
organelles are move within the cell?
A. Microfilaments
B. Intermediate filaments
C. Microtubules
D. All pf the above
4. Communication between nucleus with cytoplasm
occurs by _______
A. channel proteins
B. chromatin fibers
C. phospholipids
D. nuclear pores
5. Which one among the following describes the
function of the cell membrane or plasma
membrane?
A. Cell membrane separates the cell from its
external environment.
B. Plasma membrane gives the cell a definite
size and shape.
C. Plasma membrane controls the movement
of molecules from one side of the cell to the
other.
D. All of the above are the functions of cell
membrane.
6. Which function is associated with the rough
endoplasmic reticulum?
A. ATP synthesis
B. protein synthesis
C. DNA synthesis
D. active transport
7. The greatest number of lysosomes found in
A. Fibroblasts
B. Macrophages
C. Fat cells
D. RBCs
8. What is the outer boundary of the cell?
A. cell wall
B. plasma membrane
C. nuclear membrane
D. endoplasmic reticulum
E. nucleolus
9. gel-like mixture inside the cell that holds all of
the organelles.
A. Nucleus
B. Golgi Body
C. Cytoplasm
D. Cell Membrane
10. Which of the following statements is NOT
correct about the phospholipid molecules in the
plasma membrane?
A. Each phospholipid molecule has four nonpolar tails.
B. Each phospholipid molecule has one polar head.
C. The phospholipid heads are attracted to water.
D. The phospholipid tails are not attracted to water.
E. The phospholipid heads face outward.
11. The microtubules are made up of a protein
called:
A. tubulin
B. myosin
C. actin
D. dynein
12. Identify this organelle:
A. RER
B. SER
C. Mitochondrion
D. Cytoskeleton
13. The plasma membrane is selectively permeable.
This means that
A. only gasses and water can pass through it
B. small molecules can enter the cells
C. only certain substances can pass into or out of
the cell
D. substances need carrier molecules to pass
through it
14. The fluid mosaic model is a theory for the
structure of
A. microtubules
B. microfilaments
C. the DNA molecule
D. the plasma membrane
15. Which an organelle is present in prokaryotic &
eukaryotic cells
A. smooth ER
B. rough ER
C. lysosomes
D. ribosomes
16. This organelle packages proteins for the cell and
sends them out of the cell to other cells.
A. Golgi Body
B. Endoplasmic Reticulum
C. Lysosome
D. Ribosomes
17. The nucleolus is formed of
A. protein & DNA
B. protein & RNA
C. chromatin
D. protein only
E. none of the above
Biology Question Bank –MCQs Chapter 2: The cell (cell organelles)
