Match the following? Chromosomes Centromere Chromatids (a) Metacentric (i) Nearer to one end (p) Extremely short and long (b) Telocentric (ii) Middle (q) One arm (c) Submetacentric (iii) Close to its end (r) Two equal arms (d) Acrocentric (iv) Terminal (s) One short one long

(a-ii-r), (b-iv-q), (c-i-s), (d-iii-p)

(a-i-p), (b-ii-r), (c-ii-q), (d-iv-s)

(a-ii-r), (b-iii-q), (c-iv-p), (d-i-s)

(a-iv-q), (b-i-p), (c-ii-r), (d-iii-s)

Match List - I with the List - II. List - I List - II (a) Metacentric chromosome (i) Centromere situated close to the end forming one extremely short and one very long arms (b) Acrocentric chromosome (ii) Centromere at the terminal end (c) Sub-metacentric (iii) Centromere in the middle forming two equal arms of chromosomes (d) Telocentric chromosomes (iv) Centromere slightly away from the middle forming one shorter arm and one longer arm Choose the correct answer from the options given below:

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

Double Matching Questions Match the contents of Columns I. II and III. Column I Column II Column III (A) Multicellular organisms (i) Lipids I. Turgidity (B) Mitochondrion (ii) Plants II. Inner folded membrane (C) Plasma membrane (iii) Cell sap III. Proteins (D) Central vacuole (iv) Outer permeable membrane IV. Animals (e) Chloroplast (v) Digestive enzymes V. Phagosome (i) Lysosomes (vi) Carbon dioxide VI. Thylakoid

a-ii-IV The multicellular organisms consist of plants and animals. The multicellular organisms are made up of millions of cells. b-iv-II A mitochondrion is a double-membraned structure made up of the outer membrane and the inner membrane. The outer membrane is freely permeable to protons that makes the pH of the organelle higher. The inner folded membrane increases the surface area of the mitochondria. c-i-III The plasma membrane is a semi-permeable membrane made up of phospholipid bi-layer embedded with various proteins. The proteins embeddded in the phospholipid bilayer carry out selective transport. d-iii-I Central vacuoles consist of the cell sap and tonoplasts present inside the plant cells. The central vacuoles store water and maintain the turgidity of the cell. e-vi-VI Chloroplasts consist of the thylakoids where both light and dark reactions occur. The resultant products (ATP and NADPH) are used to fix carbon dioxide. Column I Column II Column III (a) Multicellular organisms (ii) Plants IV. Animals (b) Mitochondrion (iv) Outer permeable membrane II. Inner folded membrane (c) Plasma membrane (i) Lipids III. Proteins (d) Central Vacuole (iii) Cell sap IV. Turgidity (e) Chloroplast (vi) Carbon dioxide VI. Thylakoid (f) Lysosomes (v) Digestive enzymes V . Phagosome. f-v-V Lysosomes are membrane-bound organelles. Lysosomes contain digestive enzymes. Phagosomes containing the membrane-bound proteins fuse with lysosomes forming phagolysosome

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What is the function of nucleolus?

Important Questions on Cell: Structure and Functions

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Identify the part labelled as ‘ $M$ ’ in the diagram given below:

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Science>Biology>Cell: Structure and Functions>Cell Structure and Function

Balbiani rings are sites of:

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Sister chromatids of chromosome have

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Match the following?

Chromosomes		Centromere		Chromatids
(a)	Metacentric	(i)	Nearer to one end	(p)	Extremely short and long
(b)	Telocentric	(ii)	Middle	(q)	One arm
(c)	Submetacentric	(iii)	Close to its end	(r)	Two equal arms
(d)	Acrocentric	(iv)	Terminal	(s)	One short one long

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DNA replication (synthesis) occurs in

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Match List - I with the List - II.

	List - I		List - II
(a)	Metacentric chromosome	(i)	Centromere situated close to the end forming one extremely short and one very long arms
(b)	Acrocentric chromosome	(ii)	Centromere at the terminal end
(c)	Sub-metacentric	(iii)	Centromere in the middle forming two equal arms of chromosomes
(d)	Telocentric chromosomes	(iv)	Centromere slightly away from the middle forming one shorter arm and one longer arm

Choose the correct answer from the options given below:

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The chromosomes in which centromere is situated close to one end are:

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Which of the following is the genetic material

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Genetic material is carried out by long chain of molecules made up of

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Science>Biology>Cell: Structure and Functions>Cell Structure and Function

Who discovered the nucleus in the cell?

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Science>Biology>Cell: Structure and Functions>Cell Structure and Function

The eukaryotic chromosomes are made up of

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What is the number of chromosomes present in human gametes?

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Cell organelles are embedded in

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What are diploid and haploid number?

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Science>Biology>Cell: Structure and Functions>Cell Structure and Function

The nuclear chromatin is chemically formed of:

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Describe structure of a chromosome.

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Describe the structure and functions of nucleus.

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State one difference between cell organelles and cell inclusions.

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What will happen in a cell if its nucleus is removed? Give reasons in support of your answer.

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Double Matching Questions
Match the contents of Columns I. II and III.

Column I	Column II	Column III
(A) Multicellular organisms	(i) Lipids	I. Turgidity
(B) Mitochondrion	(ii) Plants	II. Inner folded membrane
(C) Plasma membrane	(iii) Cell sap	III. Proteins
(D) Central vacuole	(iv) Outer permeable membrane	IV. Animals
(e) Chloroplast	(v) Digestive enzymes	V. Phagosome
(i) Lysosomes	(vi) Carbon dioxide	VI. Thylakoid

What is the function of nucleolus?

Important Questions on Cell: Structure and Functions

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