Fundamental unit of life
1. Which type of cells lack a well-defined nucleus?
A) Prokaryotic cells. B)
Eukaryotic cells
C) Plant cells. D) Animal
cells
2. A cell will swell up if
(a) The concentration of water molecules in the cell is higher than the
concentration of water molecules in surrounding medium
(b) The concentration of water molecules in surrounding medium is
higher than water molecules concentration in the cell
(c) The concentration of water molecules is same in the cell and in the
surrounding medium
(d) Concentration of water molecules does not matter
3. Chromosomes are made up of
(a) DNA (b) Protein
(c) DNA and protein. (d) RNA
4. Which of these options are not a function of Ribosomes?
(i) It helps in manufacture of protein molecules
(ii) It helps in manufacture of enzymes
(iii) It helps in manufacture of hormones
(iv) It helps in manufacture of starch molecules
(a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (iv) and (i)
5. Which of these is not related to endoplasmic reticulum?
(a) It behaves as transport channel for proteins between nucleus and
cytoplasm
(b) It transports materials between various regions in cytoplasm
(c) It can be the site of energy generation
(d) It can be the site for some biochemical activities of the cell
6. Following are a few definitions of osmosis Read carefully and select
the correct definition
(a) Movement of water molecules from a region of higher concentration
to a region of lower concentration through a semipermeable membrane
(b) Movement of solvent molecules from its higher concentration to lower
concentration
(c) Movement of solvent molecules from higher concentration to lower
concentration of solution through a permeable membrane
(d) Movement of solute molecules from lower concentration to higher
concentration of solution through a semipermeable membrane
7. Plasmolysis in a plant cell is defined as
(a) break down (lysis ) of plasma membrane in hypotonic medium
(b) shrinkage of cytoplasm in hypertonic medium
(c) shrinkage of nucleoplasm. (d) none of them
8. Which of the following are covered by a single membrane?
(a) Mitochondria. (b) Vacuole
(c) Lysosome (d) Plastid
9. Find out the false sentences
(a) Golgi apparatus is involved with the formation of lysosomes
(b) Nucleus, mitochondria and plastid have DNA; hence they are able to
make their own structural proteins
(c) Mitochondria is said to be the power house of the cell as ATP is
generated in them. (d) Cytoplasm is called as protoplasm
10. Find out the correct sentence
(a) Enzymes packed in Lysosomes are made through RER (rough
endoplasmic reticulum)
(b) Rough endoplasmic reticulum and smooth endoplasmic reticulum
produce lipid and protein respectively
(c) Endoplasmic reticulum is related with the destruction of plasma
membrane
(d) Nucleoid is present inside the nucleoplasm of eukaryotic nucleus
11. Which cell organelle plays a crucial role in detoxifying many poisons
and drugs in a cell?
(a) Golgi apparatus (b) Lysosomes
(c) Smooth endoplasmic reticulum. (d) Vacuoles
12. The proteins and lipids, essential for building the cell membrane, are
manufactured by
(a) rough endoplasmic reticulum (b) golgi apparatus
(c) plasma membrane. (d) mitochondria
13. The undefined nuclear region of prokaryotes are also known as
(a) nucleus. (b) nucleolus
(c) nucleic acid (d) nucleoid
14. The cell organelle involved in forming complex sugars from simple
sugars are
(a) endoplasmic reticulum. (b) ribosomes
(c) plastids (d) golgi
apparatus
15. Which out of the following is not a function of vacuole?
(a) Storage. (b) Providing
turgidity and rigidity to the cell
(c) Waste excretion (d) Locomotion
16.Which organelle is involved in the synthesis of lipids and detoxification
of drugs?
A) Ribosomes. B) Endoplasmic
reticulum
C) Golgi apparatus. D) Nucleus
17.Which structure contains genetic material and controls cell activities?
a) Nucleus. b) Cell wall
c) Cell membrane. d) Cytoplasm
18.Identify the common feature of mitochondria and plastids?
(a) Ability to produce ATP
(b)Presence of DNA and ribosomes
(c) Presence of matrix called stroma
(d)Deeply folded inner membrane
19.The cell wall of which out of these is not made up of cellulose?
a. Bacteria. b. Hydrilla
c. Mango Tree. d. Cactus
20. Which of the following statement marks as a difference between plant
cell and animal cell?
(a) Plant cells have cell wall which animal cells do not.
(b)Plant cells do not have vacuole while animal cells do have.
(c) Plant cells have only cell membrane while animal cells have both cell
wall as well as cell membrane.
(d)Plant cells have more plastids while animal cells have few plastids.
