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Science MCQ

Cell - structure and functions · Maharashtra Board STD 8 (MSBSHSE - Semi English Medium). 19 questions.

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19 questions · timed · auto-graded

MCQ 11 Mark
The organelles which provide energy for all activities of a cell are:
  • A
    Chloroplasts.
  • ✓
    Mitrochondria.
  • C
    Golgi bodies.
  • D
    Ribosomes.
Answer
Correct option: B.
Mitrochondria.
Mitochondria is the site of cellular respiration or oxidation of food in a cell. It uses glucose and oxygen to produce energy.
Hence, it is knowns as “Powerhouse of the cell”.
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MCQ 21 Mark
Which of the following are prokaryotes?
  • A
    Protozoa.
  • B
    Blue $-$ green algae.
  • C
    Fungi.
  • ✓
    Bacteria.
Answer
Correct option: D.
Bacteria.
Organisms which do not have true nucleus are called prokaryotes. Bacteria and blue green algae are examples of prokaryotes.
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MCQ 31 Mark
In a living cell, chromatin is present in:
  • ✓
    Cytoplasm.
  • B
    Chloroplasts.
  • C
    Nucleus.
  • D
    Vacuole.
Answer
Correct option: A.
Cytoplasm.
Chromatin material is a tangled fibrous mass. The chromatin material condenses to form chromosomes during cell division.
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MCQ 41 Mark
The structural and functional unit of life called cell was discovered by:
  • A
    Robert Boyle.
  • B
    Charles Darwin.
  • C
    Robert Koch.
  • ✓
    Robert Hooke.
Answer
Correct option: D.
Robert Hooke.
The structural and functional unit of life called cell was discovered by Robert Hooke.
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MCQ 51 Mark
All the living matter in a cell is called:
  • A
    Endoplasm.
  • ✓
    Protoplasm.
  • C
    Cytoplasm.
  • D
    Cell sap.
Answer
Correct option: B.
Protoplasm.
The entire content of a living cell is known as protoplasm. It includes the cytoplasm and the nucleus. Protoplasm is called the living substance of the cell.
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MCQ 61 Mark
The basic similarity among all the living organisms is that they are made up of:
  • A
    Tissue.
  • B
    Organs.
  • ✓
    Cells.
  • D
    Organ systems.
Answer
Correct option: C.
Cells.
The basic similarity among all the living organisms is that they are made up of cells. Cell is the structural and functional unit of life.
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MCQ 71 Mark
The parts which are not present in an animal cell are:
$(A).$ Cell membrane.
$(B).$ Chloroplast.
$(C).$ Cell wall.
$(D).$ Mitochondria.
  • A
    $A$ and $B$
  • ✓
    $B$ and $C$
  • C
    $A$ and $D$
  • D
    $B$ and $D$
Answer
Correct option: B.
$B$ and $C$
$B$ and $C$
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MCQ 81 Mark
Which of the following human system includes oesophagus?
  • A
    Respiratory system.
  • B
    Circulatory system.
  • ✓
    Digestive system.
  • D
    Reproductive system.
Answer
Correct option: C.
Digestive system.
Oesophagus is a part of human digestive system. It is a muscular tube which connects the pharynx to the stomach. It is also known as food pipe.
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MCQ 91 Mark
Which of the following is a plant cell?
  • A
    Cartilage cell.
  • B
    Neuron.
  • ✓
    Epidermal cell.
  • D
    Epithelial cell.
Answer
Correct option: C.
Epidermal cell.
Epidermal cell is a plant cell while cartilage cell, neuron and epithelial cell are animal cells.
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MCQ 101 Mark
The cell wall in onion peel cell is made of:
  • A
    Starch.
  • B
    Gelatin.
  • ✓
    Cellulose.
  • D
    Cell sap.
Answer
Correct option: C.
Cellulose.
The cell wall in onion peel cell is made of cellulose.
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Question 111 Mark
State whether the following statements are true or false:
Unicellular organism have one-celled body.
Answer
True.
Explanation:
Unicellular organisms (single celled organisms) are made up of only one cell.
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MCQ 121 Mark
Which of the following is not a unicellular organism?
  • ✓
    Amoeba.
  • B
    Yak.
  • C
    Yeast.
  • D
    Rhizobium.
Answer
Correct option: A.
Amoeba.
Amoeba, yeast and rhizobium are examples of unicellular organisms while Yak is an example of multicellular organisms.
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MCQ 131 Mark
The part of a cell which plays a role in inheritance is:
  • ✓
    Nucleus.
  • B
    Cytoplasm.
  • C
    Plasma membrane.
  • D
    Mitochondria.
Answer
Correct option: A.
Nucleus.
Nucleus contains thread$-$like structures called chromosomes. These carry genes and help in inheritance or transfer of characters from the parents to the offspring.
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MCQ 141 Mark
The group of similar cell which work together to perform a particular functions is called:
  • ✓
    Organ.
  • B
    Organelle.
  • C
    Organisms.
  • D
    Tissue.
Answer
Correct option: A.
Organ.
The group of similar cells which work together to perform a particular function is called tissue.
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MCQ 151 Mark
Which of the following organelle is not found in the root cells of a plant?
  • ✓
    Nucleus.
  • B
    Vacuole.
  • C
    Mitochondria.
  • D
    Chloroplasts.
Answer
Correct option: A.
Nucleus.
Chloroplasts are found only in those plant cells which carry out photosynthesis like the cells in green leaves. So, chloroplasts are not found in the root cells of a plant.
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MCQ 161 Mark
A long and branched animal cell is:
  • A
    Muscle cell.
  • B
    Epithelial cell.
  • ✓
    Nerve cell.
  • D
    Cartilage cell.
Answer
Correct option: C.
Nerve cell.
Nerve cells $($neurons$)$ are long, branched and have thread-like projections so that they can connect other nerves cells and transmit messages over long distance.
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MCQ 171 Mark
Which of the following cells can change their shape?
$(A).$ White blood cell.
$(B).$ Amoeba cell.
$(C).$ Red blood cell.
$(D).$ Euglena cell.
  • ✓
    $A$ and $B$
  • B
    $B$ and $C$
  • C
    $A$ and $D$
  • D
    $B$ and $D$
Answer
Correct option: A.
$A$ and $B$
An amoeba cell and white blood cell present in human blood can change their shape.
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MCQ 181 Mark
Which of the following cell does not have a nucleus?
  • A
    White blood cell.
  • ✓
    Red blood cell.
  • C
    Nerve cell.
  • D
    Muscle cell.
Answer
Correct option: B.
Red blood cell.
Red blood cell does not have a nucleus.
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MCQ 191 Mark
The egg cell measuring about $17\ cm \times 13\ cm$ is most likely that of:
  • A
    Hummingbird.
  • B
    Hen.
  • C
    Elephant.
  • ✓
    Ostrich.
Answer
Correct option: D.
Ostrich.
The largest cell measuring $170\ mm \times 130\ mm,$ is the egg of an ostrich.
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