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Biology Distinguish between

Cell Structure and Organization · Maharashtra Board STD 11 Science (MSBSHSE - English Medium). 2 questions.

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Distinguish between

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 15 Marks
prokaryotic and eukaryotic cells.
Answer
Prokaryotic cellEukaryotic cell
1. It is a primitive type of cell.It is an evolved type of cell.
2. Nuclear membrane is absent.Nuclear membrane is present.
3. Genetic material is in the form of circular coil of DNA without histone proteins.Genetic material is in the form of a double helix DNA with histone proteins.
4. Membrane-bound cell organelles are absent.Membrane-bound cell organelles are present.
5. Plasmids are many in number.Plasmids are absent.
6. Cytoplasm does not show streaming movement.Cytoplasm shows streaming movement.
7. Ribosomes are smaller and of 70S type.Ribosomes are larger and of 80S type.
8. Respiratory enzymes are present on the infoldings of the plasma membrane called mesosomes.Respiratory enzymes are present within mitochondria.
e.g Cyanobacteria (Blue-green algae) and bacteria.Algae, fungi, plants and animals.
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Question 25 Marks
Distinguish between Plant cell and Animal cell.
Answer
Plant cellAnimal cell
(a) Cell wall is present.Cell wall is absent.
(b) Plastids present.Plastids absent.
(c) Chloroplast present.Chloroplast absent.
(d) Centrioles are present only in lower plant forms.Centrioles are present in all animal cells.
(e) Lysosomes absent.Lysosomes present in all animal cells.
(f) Two or three large and permanent vacuoles.Small and temporary vacuoles are present.
(g) Carbohydrates stored as starch.Carbohydrates stored as glycogen.
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