CBSE Questions for Class 9 Biology The Fundamental Unit Of Life Quiz 5 - MCQExams.com

An organism in which all the activities are performed by a single cell is called:
  • Multicellular
  • Unicellular
  • Acellular
  • Plants
Match the item in Column I with Column II.
Part IPart II
a) Ribosomesi) Suicidal bags
b) Mitochondriaii) Control functions of cell
c) Nucleusiii) Protein synthesis
d) Lysosomesiv) Powerhouse of the cell
  • $$a - iii, b - iv, c - ii, d - i$$
  • $$a - iii, b - iv, c - i, d - ii$$
  • $$a - iii, b - i, c - ii, d - iv$$
  • $$a - i, b - iii, c - ii, d - iv$$
Match the columns:
Column IColumn II
(a)Endoplasmic reticulum(i)Stack of cisternae
(b)Sphaerosome(ii)Store oil
(c)Dictyosomes(iii)Synthesis and storage of lipids
(d)Peroxisomes(iv)Photorespiraton
(e)Elaioplasts(v)Detoxification of drugs
  • a-v, b-iii, c-ii, d-iv, e-i
  • a-v, b-iii, c-i, d-iv, e-ii
  • a-ii, b-iii, c-i, d-iv, e-v
  • a-iii, b-iv, c-i, d-v, e-ii
  • a-iii, b-v, c-i, d-iv, e-ii.
Transcription and translation occur in the cytoplasm in a/an
  • Prokaryotic cell
  • Eukaryotic cell
  • Unicellular organism only
  • None of the above
In eukaryotic cell,
  • A spindle apparatus is produced during nuclear division.
  • A spindle apparatus is not formed during division.
  • Gametes are not formed
  • Ribosomes are of 70S type
Surface of endoplasmic reticulum is covered with ___________.
  • Glucose
  • DNA
  • Ribosomes
  • RNA
Double membraned envelop is found in
  • Mitochondria, Golgi apparatus and chloroplast
  • Mitochondria, nucleus and chloroplast
  • Nucleus, Golgi apparatus and endoplasmic reticulum
  • Nucleus, ribosome and chloroplast
The best model for the study of the structure of cell membrane is:
  • RBC of human
  • Liver cell
  • Kidney cell
  • Muscle cell
The plant cell cytoplasm is surrounded by both cell wall and cell membrane. The specificity of transport of substances is mostly cross the cell membrane, because.
  • Cell membrane is impermeable
  • Cell membrane is selectively permeable
  • Cell membrane is fully permeable
  • Cell wall is impermeable
What does $$A, B$$ and $$C$$ represent in the given figure of a chromosome?
885252_e7426d03d4e6486f95feb46615f8acfd.jpg
  • A - Centriole, B - Satellite, C - Primary constriction
  • A - Centriole, B - Satellite, C - Secondary constriction
  • A - Centromere, B - Satellite, C - Secondary constriction
  • A - Centromere, B - Satellite, C - Primary constriction
The nucleus is not an important site of:
  • DNA synthesis
  • RNA synthesis
  • Synthesis of ribosomal subunits
  • Protein synthesis
Plant cells have .......... and .........., which are not present in animal cells.
  • Mitochondria and chloroplasts
  • Cell membranes and cell walls
  • Chloroplasts and nucleus
  • Chloroplasts and cell wall
Which of these statements is/are true?

(i) The surface area available for cellular functions in a prokaryotic cell is less than that in a eukaryotic cell.
(ii) The total genome size of a prokaryotic cell is always less than that of a eukaryotic cell.
(iii) Unlike eukaryotes, no special respiratory organelles are found in prokaryotes. Hence they respire at a much less rate than eukaryotes.
(iv) Eukaryotic cells show various membrane-bound organelles such as chloroplasts and nucleus while ribosomes are the only membrane-bound organelles found in prokaryotes.
  • (i) and (ii)
  • (iv) only
  • (iii) only
  • (i), (ii) and (iv)
Fill in the blank:
An organism with billions of cells begins life as a ________ which is the fertilised egg.
  • Embryo
  • Single-cell
  • Double-cell
  • None of the above
Different cells have different sizes. Arrange the following cells in ascending order of their size and select the correct option:
(i) Mycoplasma                  (ii) Ostrich egg
(iii) Human RBCs              (iv) Bacteria
  • (i) $$\rightarrow$$ (iv) $$\rightarrow$$ (iii) $$\rightarrow$$ (ii)
  • (i) $$\rightarrow$$ (iii) $$\rightarrow$$ (iv) $$\rightarrow$$ (ii)
  • (ii) $$\rightarrow$$ (i) $$\rightarrow$$ (iii) $$\rightarrow$$ (iv)
  • (ii) $$\rightarrow$$ (ii) $$\rightarrow$$ (i) $$\rightarrow$$ (iv)
Which of the following statement about nucleus and nucleolus is correct?
  • The nucleus is membrane-bound while the nucleolus is not membrane-bound.
  • The nucleolus is membrane-bound while the nucleus is not membrane-bound.
  • Both nucleolus and nucleus are membrane-bound.
  • Both nucleus and nucleolus are not membrane-bound.
Nucleus is
  • The largest organelle in the cell
  • The organelle which contains chromosomes
  • The organelle with a double membrane
  • All of the above
Which of the following statement is/are correct for the cell cycle?
  • Cell cycle is a series of events involving cell growth and cell division that produces two new daughter cells.
  • Cell growth (in terms of cytoplasmic increase) is a discontinuous process.
  • DNA synthesis occurs only during two specific stages in the cell cycle.
  • The replicated chromosomes (DNA) are distributed to daughter nuclei prior to cell division.
Eukaryotic cell differs from prokaryotic cell in having
  • Single envelop system
  • Nucleoid
  • 70S ribosomes
  • Nucleus
The thread like structure present in the nucleus is
  • Nucleolus
  • Gene
  • Chromosome
  • Ribosome
Which of the following divides the intracellular space into two distinct compartments?
  • Endoplasmic reticulum
  • Cell membrane
  • Plasma membrane
  • None of the above
From the following, an organelle with ribosomes attached to its surface is:
  • Chloroplast
  • Rough endoplasmic reticulum
  • Smooth endoplasmic reticulum
  • Mitochondria
Cells vary in shape from 0.1 mm to 170 mm. 
  • True
  • False
Non-membrane bound cell organelle is?
  • Ribosomes
  • Centrioles
  • Nucleolus
  • All of these
The smooth muscles in our body are_______.
  • Thin
  • Long
  • Tapering ends
  • All of the above
The cell membrane is selectively permeable, it can be best deduced by?
  • The entry of water
  • The entry of selective mineral salts
  • Both A and B
  • The rise of sap in plants
The chlorophyll in photosynthetic prokaryotic bacteria is associated with membranous vesicles but not with plastids.
  • True
  • False
A single-celled organism like an amoeba can
i) capture and digest food
ii) respire
iii) excrete 
iv) grow and reproduce
  • Only i) and ii)
  • Only i) and iv)
  • Only ii) and iii)
  • i), ii), iii) and iv)
State whether the given statement is True or False:
The size of a cell is not related to the size of an organism, but to its function.
  • True
  • False
State whether the given statement is True or False:
In multicellular organisms, the fertilised egg cell multiplies and the number of cells increases as development proceeds.
  • True
  • False
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 9 Biology Quiz Questions and Answers