Class 8 Science Chapter 8 MCQs Questions With Answers NCERT
We have compiled the NCERT MCQ Questions for Class 8 Science Chapter 8 Cell Structure and Functions with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 8 Science with Answers on a daily basis and score well in exams. Refer to the Cell Structure and Functions Class 8 MCQs Questions with Answers here along with a detailed explanation.
Cell Structure and Functions Class 8 MCQ
Choose the correct option.
Question 1.
Nucleus is separated from cytoplasm by
(a) nuclear membrane
(b) nucleoplasm
(c) organs
(d) cell membrane
Answer
Answer: (a) nuclear membrane
Question 2.
The liquid material in the nucleus is
(a) chromosomes
(b) bacteria
(c) nucleoplasm
(d) nucleolus
Answer
Answer: (c) nucleoplasm
Question 3.
Tissues combine to form
(a) nucleus
(b) cells
(c) organism
(d) organs
Answer
Answer: (d) organs
Question 4.
Cells present in living organism differ in
(a) numbers
(b) shape
(c) size
(d) all of these
Answer
Answer: (d) all of these
Question 5.
Cells which lack nuclear membrane are
(a) eukaryotic cells
(b) prokaryotic cells
(c) single cells
(d) multicells
Answer
Answer: (b) prokaryotic cells
Question 6.
The control centre of all the activities of a cell is
(a) nucleus
(b) nucleoplasm
(c) cytoplasm
(d) organelles
Answer
Answer: (a) nucleus
Question 7.
The coloured organelles which are found in plants only are
(a) chlorophyll
(b) plastids
(c) vacuoles
(d) WBC
Answer
Answer: (b) plastids
Question 8.
Genes are located in
(a) chromosomes
(b) plastids
(c) cytoplasm
(d) lysosome
Answer
Answer: (a) chromosomes
Question 9.
A group of similar cells combine to form
(a) tissue
(b) organ
(c) organisms
(d) organelles
Answer
Answer: (a) tissue
Question 10.
The organism containing only a single cell is called
(a) unicellular organism
(b) multicellular organism
(c) organelle
(d) all of these
Answer
Answer: (a) unicellular organism
Question 11.
Cell walls is found in
(a) plant cells only
(b) animal cells only
(c) both (a) and (b)
(d) none of them
Answer
Answer: (a) plant cells only
Question 12.
The empty blank looking structures in the cytoplasm is
(a) vacuoles
(b) plastids
(c) plasma membrane
(d) nucleus
Answer
Answer: (a) vacuoles
Question 13.
The other name of cell membrane is
(a) plasma membrane
(b) cell wall
(c) nuclear membrane
(d) none of these
Answer
Answer: (a) plasma membrane
Question 14.
The basic structural and functional unit of all living organism is
(a) cell
(b) cell wall
(c) cell membrane
(d) chloroplasts
Answer
Answer: (a) cell
Question 15.
Chromosomes are found in
(a) nucleus
(b) nucleolus
(c) nucleoplast
(d) vacuole
Answer
Answer: (a) nucleus
Question 16.
Which of the following is a unicellular organism?
(a) Squid
(b) Amoeba
(c) Earthworm
(d) Hydra
Answer
Answer: (b) Amoeba
Question 17.
Which of the following cells is of irregular shape?
(a) RBC
(b) WBC
(c) Muscle cell
(d) Neuron
Answer
Answer: (b) WBC
Question 18.
Which pigment is present in chloroplast?
(a) Leucoplast
(b) Chlorophyll
(c) Xanthophyll
(d) Melanin
Answer
Answer: (b) Chlorophyll
Question 19.
Which of the following is made up of cellulose?
(a) Cell membrane
(b) Golgi body
(c) Chloroplast
(d) Cell wall
Answer
Answer: (d) Cell wall
Question 20.
Which of the following cells is shaped like a star with a tail?
(a) Neuron
(b) Cells of skin
(c) Muscle cell
(d) RBC
Answer
Answer: (a) Neuron
Question 21.
Cell wall is present in which of the following organisms?
(a) Bacteria
(b) Plasmodium
(c) Amoeba
(d) Sponge
Answer
Answer: (a) Bacteria
Question 22.
Which structure makes the outer boundary of an animal cell?
(a) Cell wall
(b) Cell membrane
(c) Nuclear membrane
(d) Cytoplasm
Answer
Answer: (b) Cell membrane
Question 23.
The egg of an Ostrich is a/an
(a) tissue
(b) organ
(c) cell
(d) organ system
Answer
Answer: (c) cell
Question 24.
The control unit of cell is
(a) nucleus
(b) cell wall
(c) cytoplasm
(d) all of these
Answer
Answer: (a) nucleus
Question 25.
Who discovered cell in 1665?
(a) Robert Hooke
(b) Robert Crook
(c) David Thomson
(d) Marie Francois
Answer
Answer: (a) Robert Hooke
Question 26.
Which among the following sentences is not correct about the organelles?
(a) They are found in all eukaryotic cells.
(b) They are found only in multicellular organisms.
(c) They coordinate to perform the celt functions.
(d) They are small sized and mostly internal.
Answer
Answer: (b) They are found only in multicellular organisms.
Question 27.
The jelly-like substance present inside the cell is known as
(a) cytoplasm
(b) ectoplasm
(c) nucleoplasm
(d) none of the above
Answer
Answer: (a) cytoplasm
Question 28.
Which of the following is called the powerhouse of a cell?
(a) Cell wall
(b) Mitochondria
(c) Ribosomes
(d) Nucleus
Answer
Answer: (b) Mitochondria
Question 29.
Which of the following is called the kitchen of the cell?
(a) Cell wall
(b) Nucleus
(c) Vacuoles
(d) Plastids
Answer
Answer: (d) Plastids
Question 30.
Which of the following is called the functional unit of life?
(a) Cell
(b) Egg
(c) Nucleus
(d) None of these
Answer
Answer: (a) Cell
Fill in the Blanks
Question 1.
Cells are the ………………. unit of all living organisms.
Answer
Answer: basic
Question 2.
………………. cells are branched.
Answer
Answer: Muscle
Question 3.
Amoeba has ………………. shape.
Answer
Answer: irregular
Question 4.
The ………………. cell transfers the messages.
Answer
Answer: nerve
Question 5.
………………. is a group of tissues.
Answer
Answer: Organ
Question 6.
Protoplasm is ………………. inside the cell.
Answer
Answer: viscous fluid
Question 7.
Eukaryotes cells have a well-developed ……………….
Answer
Answer: nucleus
Question 8.
The jelly-like substance found between the nucleus and the cell-membrane is ……………….
Answer
Answer: cytoplasm
Question 9
Nucleus is separated from the cytoplasm by ……………….
Answer
Answer: nuclear membrane
Question 10.
An ………………. is a group of organs.
Answer
Answer: organ system
Question 11.
………………. are present in plant cells but ………………. in animal cells.
Answer
Answer: Plastids, absent
Question 12.
………………. is the process of making food in plants.
Answer
Answer: Photosynthesis
Question 13.
………………. is absent in animal cell.
Answer
Answer: Cell wall
Question 14.
The kitchen of plant cell is ……………….
Answer
Answer: plastid
Question 15.
………………. is the power house of the cell.
Answer
Answer: Mitochondria
Question 16.
Cells of a few centimetres are found in ……………………. of animals and ……………………. of plants.
Answer
Answer: muscles, fibres
Question 17.
The shape of cells is generally …………………….
Answer
Answer: round
Question 18.
Red blood cells have a size of a few …………………….
Answer
Answer: micrometres
Question 19.
Cell wall is present in ……………………. cells.
Answer
Answer: plant
Question 20.
The largest cell is that of an …………………….
Answer
Answer: ostrich’s egg
Question 21.
A group of tissues makes up an …………………….
Answer
Answer: organ
True or False
Question 1.
Cytoplasm is not a part of cell.
Answer
Answer: False
Question 2.
Cell wall surrounds the cell membrane.
Answer
Answer: True
Question 3.
A group of similar cells is called tissue.
Answer
Answer: True
Question 4.
Tissues combine to form an organism.
Answer
Answer: False
Question 5.
Cell are of different sizes.
Answer
Answer: True
Question 6.
Chloroplasts are blue in colour.
Answer
Answer: False
Question 7.
Plastid occur in plant cells only.
Answer
Answer: True
Question 8.
Chromosomes contain basic hereditary units called genes.
Answer
Answer: True
Question 9.
Nucleus is the control unit of cell.
Answer
Answer: True
Question 10.
The shape and size of cell is related to its function.
Answer
Answer: True
Question 11.
Organs make up tissues.
Answer
Answer: False
Question 12.
The cytoplasm and nucleoplasm make up the protoplasm.
Answer
Answer: True
Question 13.
The smallest unit of life is chloroplast.
Answer
Answer: False
Question 14.
Unicellular organisms have one-celled body.
Answer
Answer: True
Question 15.
The cell wall is living in nature.
Answer
Answer: False
Question 16.
All the cells in our body are alike.
Answer
Answer: False
Question 17.
A human cell is a eukaryotic cell.
Answer
Answer: True
Question 18.
Plastids are found in animal cells only.
Answer
Answer: False
Question 19.
Cytoplasm of the cell contains various cell organelles.
Answer
Answer: True
Question 20.
Paramecium is a single-celled organism.
Answer
Answer: True
Question 21.
An organ is a group of tissues performing identical, and specialised functions.
Answer
Answer: True
Question 22.
A cell membrane is dead, while a cell wall is living in nature.
Answer
Answer: False
Question 23.
Ribosomes are responsible for the synthesis of proteins in a cell.
Answer
Answer: True
Question 24.
There is a rigid cell wall in all the animal cells.
Answer
Answer: False
Match the following
| Column I | Column II |
| 1. Mitochondria | (a) Cell |
| 2. Functional unit of life | (b) Nucleus |
| 3. Control unit of cell | (c) Unicellular |
| 4. Single-celled organism | (d) Discovery of cell |
| 5. Robert Hooke | (e) Power house of a cell |
| 6. Combination of tissues | (f) Transfers messages |
| 7. Cytoplasm | (g) Jelly-like substance |
| 8. Nerve cell | (h) Forms organ |
| 9. Living substance in the cell | (i) Cell wall |
| 10. Outermost thick layer in plant cells | (j) Protoplasm |
Answer
Answer:
| Column I | Column II |
| 1. Mitochondria | (e) Power house of a cell |
| 2. Functional unit of life | (a) Cell |
| 3. Control unit of cell | (b) Nucleus |
| 4. Single-celled organism | (c) Unicellular |
| 5. Robert Hooke | (d) Discovery of cell |
| 6. Combination of tissues | (h) Forms organ |
| 7. Cytoplasm | (g) Jelly-like substance |
| 8. Nerve cell | (f) Transfers messages |
| 9. Living substance in the cell | (j) Protoplasm |
| 10. Outermost thick layer in plant cells | (i) Cell wall |
| Column A | Column B |
| 1. Epithelial cells | (a) Spindle shaped |
| 2. Smooth muscle | (b) Round cells |
| 3. Nerve cells | (c) Flattened |
| 4. Egg cells | (d) Long and branched |
| 5. Cell wall | (e) Dead |
Answer
Answer:
| Column A | Column B |
| 1. Epithelial cells | (c) Flattened |
| 2. Smooth muscle | (a) Spindle shaped |
| 3. Nerve cells | (d) Long and branched |
| 4. Egg cells | (b) Round cells |
| 5. Cell wall | (e) Dead |
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