worksheet 1
Q NO Mks.
1. State whether the following statements are true or false :-
1. Viruses are non-living cellular organisms
2. The person who identified cells as rooms was Robert Hooke.
3. A prokaryotic cell has only 3 important structures of a cell
4. A Eukaryotic cell is the lesser evolved one.
5. Bacteria are unicellular organisms
2. Complete the following :-
i. ------- are an exception to the cell theory
ii. A ---- cell is lesser evolved.
iii. ---- and --- are single celled organisms
iv. ---- and ----- were the 2 scientists who proposed the cell
theory for the first time.
v. Cells were first discovered by ---------- in a ------.
4. Give the postulates of the cell theory. 3
5. Give one reason why viruses are considered as living
Answer key
1
Q NO Mks.
1. State whether the following statements are true or false :-
1. Viruses are non-living cellular organisms
False
2. The person who identified cells as rooms was Robert Hooke.
True
3. A prokaryotic cell has only 3 important structures of a cell
True
4. A Eukaryotic cell is the lesser evolved one.
False
5. Bacteria are unicellular organisms
True
2. Complete the following :-
i. ------- are an exception to the cell theory
Viruses
ii. A ---- cell is lesser evolved.
Prokaryotic
iii. ---- and --- are single celled organisms
Bacteria , Amoeba
iv. ---- and ----- were the 2 scientists who proposed the cell
theory for the first time.
Schwann , Schleiden
v. Cells were first discovered by ---------- in a ------.
Robert Hooke, cork
4. Give the postulates of the cell theory.
1. All organisms are made up of cells
2. Cell is the structural and functional unit of an organism
3. Existing cells give rise to new cells
5. Give one reason why viruses are considered as living.
A- They reproduce
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worksheet 2
Q No. Mks.
1 List the structures which are common to plant and animal cell
2. List the structures found only in plant cell
3. List the structures found only in animal cell
4 Name the 3 basic characteristics of a cell
5. Name an animal which has chloroplasts
6. Name the organelle inside the cell that gives mechanical support to
the cell.
7. Which of the following is found both in the mango plant and a
monkey?
Cell wall , chloroplasts, centrioles, cell membrane
8. All life starts as ?
Egg, cell, a chromosome, a gene
9. Give reasons as to why cells are small in size.
Answers
Q No. Mks.
1 List the structures which are common to plant and animal cell
i. Cell membrane
ii. Endoplasmic reticulum
iii. Ribosomes
iv. Mitochondria
v. Golgi apparatus
vi. Lysosomes
vii. Nucleus
2. List the structures found only in plant cell
i. Plastids
ii. Cell wall
iii. Permanent vacuoles
3. List the structures found only in animal cell
i. Centrosomes
ii. Centrioles
4 Name the 3 basic characteristics of a cell
i. Cell membrane
ii. Nucleus
iii. cytoplasm
5. Name an animal which has chloroplasts
Euglena
6. Name the organelle inside the cell that gives mechanical support to
the cell.
Central vacuole
7. Which of the following is found both in the mango plant and a
monkey?
Cell wall , chloroplasts, centrioles, cell membrane
Cell membrane
8. All life starts as ?
Egg, cell, a chromosome, a gene
Cell
9. Give reasons as to why cells are small in size.
i. In order to occupy a larger surface area
ii. Be able to communicate with each other conveniently
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worksheet 3
1
Q No Mks.
1 What name will you give to a cell in which the nuclear membrane is
not well marked?
2. Compare the compositions of hypotonic, Isotonic, and hypertonic
solutions with that of the cell sap
3. Name the structure that is absent in animal cell since they have
bones.
4. State whether true or false :-
i. Movement of liquid particles through a semi permeable
membrane is called diffusion
ii. DNA molecules establish the true parental lineage of the
child
iii. Central vacuole gives rigidity to the plant cell from inside
iv. Vacuoles are temporary in animal
5. Select the appropriate answer :-
i. If a cell swells up when kept in a solution, the solution is
a. Hypertonic
b. Hypotonic
c. isotonic
ii. cytoplasm contains the
a. cell wall
b. cell organelles
c. cell membrane
iii. cell organelles can be compared to
a. cell wall
b. plasma membrane
c. nucleus
d. various demarked areas in a house with specific functions
iv. A cell bursts when kept in hypotonic solution bursts, then it is
a. A. Plant cell
b. An animal cell
c. A bacterial cell
d. A fungal cell
v. Throwing out of water by a cell is
a. Phagocytosis
b. Endocytosis
c. Potocytosis
vi. Root hair absorbs water by
a. Osmosis
b. Diffusion
c. Both of above
d. Neither of above
vii. Plasmolysis occurs due to
a. Breaking down of plasma
b. Shrinkage of cytoplasm in hypertonic solution
c. Shrinkage of nucleoplasm
d. None of the above
6. Which structure of the cell helps to establish the correct identity of a
child’s father?
7. Where are these structures found? 1
8. State the number of chromosomes the reproductive cell of a human
contains.
9. Why do they contain half the no. of chromosomes as in an adult 1
human being?
10. What are the terms given to cells with 46 chromosomes and those
with 23 chromosomes? 2
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answer key
1
Q No Mks.
1 What name will you give to a cell in which the nuclear membrane is
not well marked?
Prokaryotic cell
2. Compare the compositions of hypotonic, Isotonic, and hypertonic
solutions with that of the cell sap
Hypotonic solution ---- is dilute as compared to cell sap as it has
more water content
Isotonic solution has the same concentration as that of the cell sap
Hypertonic solution is more concentrated as compared to the cell sap
as it has lesser water content
3. Name the structure that is absent in animal cell since they have
bones.
Cell wall
4. State whether true or false :-
i. Movement of liquid particles through a semi permeable
membrane is called diffusion
False
ii. DNA molecules establish the true parental lineage of the
child
True
iii. Central vacuole gives rigidity to the plant cell from inside
True
iv. Vacuoles are temporary in animals
True
5. Select the appropriate answer :-
i. If a cell swells up when kept in a solution, the solution is
Hypotonic
ii. cytoplasm contains the
cell organelles
iii. cell organelles can be compared to
various demarked areas in a house with specific functions
iv. A cell bursts when kept in hypotonic solution bursts, then it is
An animal cell
v. Throwing out of water by a cell is
Potocytosis
vi. Root hair absorbs water by
a. Osmosis
vii. Plasmolysis occurs due to
Shrinkage of cytoplasm in hypertonic solution
6. Which structure of the cell helps to establish the correct identity of a
child’s father?
The DNA molecules
7. Where are these structures found?
In the nucleus on the chromosomes
8. State the number of chromosomes the reproductive cell of a human
contains.
23 chromosomes 1
9. Why do they contain half the no. of chromosomes as in an adult
human being?
This is so because then after the fusion of the 2 reproductive cells the
fertilised cell will have 46 chromosomes
10 What are the terms given to cells with 46 chromosomes and those
with 23 chromosomes?
23-Haploid and 46- Diploid respectively
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worksheet 4
1
Q No. Mks.
1. State whether the given statements are true or false :-
i. Ribosomes are made of Deoxyribonucleic acid
ii. Cellulose is a protein
iii. Plasma membrane is present in all cells
iv. Movement of a substance from an area of high
concentration to an area of low concentration is called
diffusion
v. Plant cells are bounded by a wall made of cellulose.
vi. A dilute solution is called a hypertonic solution
vii. Cell wall of a plant cell is a living structure.
2.
Fill in the blanks :--
i. An ostrich egg is the -------- animal cell
ii. Cellular organelles called ------ are often called suicidal
bags.
iii. The additional protective layer in plant cells present outside
the plasma membrane is called ------ .
iv. Plant cell wall is ----- permeable membrane
Name the following :--
i. The 2 sex hormones
ii. Endoplasmic reticulum having the ribosomes on it
iii. The molecules of this substance are present in the ribosomes
iv. The organelles that despatch material to the various parts of
the cell.
v. The melanin pigment is stored in this.
vi. This extends from the plasma membrane to the nuclear
membrane.
4. Give reasons for :-
i. Why are golgi bodies not present in the RBCs?
ii. Animal cell does not have a cell wall
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Answer key
1
Q No. Mks.
1. State whether the given statements are true or false :-
i. Ribosomes are made of Deoxyribonucleic acid
False
ii. Cellulose is a protein
True
iii. Plasma membrane is present in all cells
True
iv. Movement of a substance from an area of high
concentration to an area of low concentration is called
diffusion
True
v. Plant cells are bounded by a wall made of cellulose.
True
vi. A dilute solution is called a hypertonic solution
False
vii. Cell wall of a plant cell is a living structure.
False
.
Fill in the blanks :--
i. An ostrich egg is the -------- animal cell
biggest
ii. Cellular organelles called ------ are often called suicidal
bags.
lysosomes
iii. The additional protective layer in plant cells present outside
the plasma membrane is called ------ .
Cell wall
iv. Plant cell wall is ----- permeable membrane
Freely permeable membrane
Name the following :--
i. The 2 sex hormones
Testesterone, Oestrogen
ii. Endoplasmic reticulum having the ribosomes on it
Rough Endoplasmic Reticulum
iii. The molecules of this substance are present in the ribosomes
Ribonucleic Acid
iv. The organelles that despatch material to the various parts of
the cell.
Golgi bodies
v. The melanin pigment is stored in this.
Vacuoles
vi. This extends from the plasma membrane to the nuclear
membrane.
Endoplasmic reticulum
4. Give reasons for :-
i. Why are golgi bodies not present in the RBCs?
RBCs do not contain nucleus
ii. Animal cell does not have a cell wall
Mechanical support given by skeletal system.
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Q NO Mks.
1. State whether the following statements are true or false :-
1. Viruses are non-living cellular organisms
2. The person who identified cells as rooms was Robert Hooke.
3. A prokaryotic cell has only 3 important structures of a cell
4. A Eukaryotic cell is the lesser evolved one.
5. Bacteria are unicellular organisms
2. Complete the following :-
i. ------- are an exception to the cell theory
ii. A ---- cell is lesser evolved.
iii. ---- and --- are single celled organisms
iv. ---- and ----- were the 2 scientists who proposed the cell
theory for the first time.
v. Cells were first discovered by ---------- in a ------.
4. Give the postulates of the cell theory. 3
5. Give one reason why viruses are considered as living
Answer key
1
Q NO Mks.
1. State whether the following statements are true or false :-
1. Viruses are non-living cellular organisms
False
2. The person who identified cells as rooms was Robert Hooke.
True
3. A prokaryotic cell has only 3 important structures of a cell
True
4. A Eukaryotic cell is the lesser evolved one.
False
5. Bacteria are unicellular organisms
True
2. Complete the following :-
i. ------- are an exception to the cell theory
Viruses
ii. A ---- cell is lesser evolved.
Prokaryotic
iii. ---- and --- are single celled organisms
Bacteria , Amoeba
iv. ---- and ----- were the 2 scientists who proposed the cell
theory for the first time.
Schwann , Schleiden
v. Cells were first discovered by ---------- in a ------.
Robert Hooke, cork
4. Give the postulates of the cell theory.
1. All organisms are made up of cells
2. Cell is the structural and functional unit of an organism
3. Existing cells give rise to new cells
5. Give one reason why viruses are considered as living.
A- They reproduce
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
worksheet 2
Q No. Mks.
1 List the structures which are common to plant and animal cell
2. List the structures found only in plant cell
3. List the structures found only in animal cell
4 Name the 3 basic characteristics of a cell
5. Name an animal which has chloroplasts
6. Name the organelle inside the cell that gives mechanical support to
the cell.
7. Which of the following is found both in the mango plant and a
monkey?
Cell wall , chloroplasts, centrioles, cell membrane
8. All life starts as ?
Egg, cell, a chromosome, a gene
9. Give reasons as to why cells are small in size.
Answers
Q No. Mks.
1 List the structures which are common to plant and animal cell
i. Cell membrane
ii. Endoplasmic reticulum
iii. Ribosomes
iv. Mitochondria
v. Golgi apparatus
vi. Lysosomes
vii. Nucleus
2. List the structures found only in plant cell
i. Plastids
ii. Cell wall
iii. Permanent vacuoles
3. List the structures found only in animal cell
i. Centrosomes
ii. Centrioles
4 Name the 3 basic characteristics of a cell
i. Cell membrane
ii. Nucleus
iii. cytoplasm
5. Name an animal which has chloroplasts
Euglena
6. Name the organelle inside the cell that gives mechanical support to
the cell.
Central vacuole
7. Which of the following is found both in the mango plant and a
monkey?
Cell wall , chloroplasts, centrioles, cell membrane
Cell membrane
8. All life starts as ?
Egg, cell, a chromosome, a gene
Cell
9. Give reasons as to why cells are small in size.
i. In order to occupy a larger surface area
ii. Be able to communicate with each other conveniently
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
worksheet 3
1
Q No Mks.
1 What name will you give to a cell in which the nuclear membrane is
not well marked?
2. Compare the compositions of hypotonic, Isotonic, and hypertonic
solutions with that of the cell sap
3. Name the structure that is absent in animal cell since they have
bones.
4. State whether true or false :-
i. Movement of liquid particles through a semi permeable
membrane is called diffusion
ii. DNA molecules establish the true parental lineage of the
child
iii. Central vacuole gives rigidity to the plant cell from inside
iv. Vacuoles are temporary in animal
5. Select the appropriate answer :-
i. If a cell swells up when kept in a solution, the solution is
a. Hypertonic
b. Hypotonic
c. isotonic
ii. cytoplasm contains the
a. cell wall
b. cell organelles
c. cell membrane
iii. cell organelles can be compared to
a. cell wall
b. plasma membrane
c. nucleus
d. various demarked areas in a house with specific functions
iv. A cell bursts when kept in hypotonic solution bursts, then it is
a. A. Plant cell
b. An animal cell
c. A bacterial cell
d. A fungal cell
v. Throwing out of water by a cell is
a. Phagocytosis
b. Endocytosis
c. Potocytosis
vi. Root hair absorbs water by
a. Osmosis
b. Diffusion
c. Both of above
d. Neither of above
vii. Plasmolysis occurs due to
a. Breaking down of plasma
b. Shrinkage of cytoplasm in hypertonic solution
c. Shrinkage of nucleoplasm
d. None of the above
6. Which structure of the cell helps to establish the correct identity of a
child’s father?
7. Where are these structures found? 1
8. State the number of chromosomes the reproductive cell of a human
contains.
9. Why do they contain half the no. of chromosomes as in an adult 1
human being?
10. What are the terms given to cells with 46 chromosomes and those
with 23 chromosomes? 2
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
answer key
1
Q No Mks.
1 What name will you give to a cell in which the nuclear membrane is
not well marked?
Prokaryotic cell
2. Compare the compositions of hypotonic, Isotonic, and hypertonic
solutions with that of the cell sap
Hypotonic solution ---- is dilute as compared to cell sap as it has
more water content
Isotonic solution has the same concentration as that of the cell sap
Hypertonic solution is more concentrated as compared to the cell sap
as it has lesser water content
3. Name the structure that is absent in animal cell since they have
bones.
Cell wall
4. State whether true or false :-
i. Movement of liquid particles through a semi permeable
membrane is called diffusion
False
ii. DNA molecules establish the true parental lineage of the
child
True
iii. Central vacuole gives rigidity to the plant cell from inside
True
iv. Vacuoles are temporary in animals
True
5. Select the appropriate answer :-
i. If a cell swells up when kept in a solution, the solution is
Hypotonic
ii. cytoplasm contains the
cell organelles
iii. cell organelles can be compared to
various demarked areas in a house with specific functions
iv. A cell bursts when kept in hypotonic solution bursts, then it is
An animal cell
v. Throwing out of water by a cell is
Potocytosis
vi. Root hair absorbs water by
a. Osmosis
vii. Plasmolysis occurs due to
Shrinkage of cytoplasm in hypertonic solution
6. Which structure of the cell helps to establish the correct identity of a
child’s father?
The DNA molecules
7. Where are these structures found?
In the nucleus on the chromosomes
8. State the number of chromosomes the reproductive cell of a human
contains.
23 chromosomes 1
9. Why do they contain half the no. of chromosomes as in an adult
human being?
This is so because then after the fusion of the 2 reproductive cells the
fertilised cell will have 46 chromosomes
10 What are the terms given to cells with 46 chromosomes and those
with 23 chromosomes?
23-Haploid and 46- Diploid respectively
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
worksheet 4
1
Q No. Mks.
1. State whether the given statements are true or false :-
i. Ribosomes are made of Deoxyribonucleic acid
ii. Cellulose is a protein
iii. Plasma membrane is present in all cells
iv. Movement of a substance from an area of high
concentration to an area of low concentration is called
diffusion
v. Plant cells are bounded by a wall made of cellulose.
vi. A dilute solution is called a hypertonic solution
vii. Cell wall of a plant cell is a living structure.
2.
Fill in the blanks :--
i. An ostrich egg is the -------- animal cell
ii. Cellular organelles called ------ are often called suicidal
bags.
iii. The additional protective layer in plant cells present outside
the plasma membrane is called ------ .
iv. Plant cell wall is ----- permeable membrane
Name the following :--
i. The 2 sex hormones
ii. Endoplasmic reticulum having the ribosomes on it
iii. The molecules of this substance are present in the ribosomes
iv. The organelles that despatch material to the various parts of
the cell.
v. The melanin pigment is stored in this.
vi. This extends from the plasma membrane to the nuclear
membrane.
4. Give reasons for :-
i. Why are golgi bodies not present in the RBCs?
ii. Animal cell does not have a cell wall
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Answer key
1
Q No. Mks.
1. State whether the given statements are true or false :-
i. Ribosomes are made of Deoxyribonucleic acid
False
ii. Cellulose is a protein
True
iii. Plasma membrane is present in all cells
True
iv. Movement of a substance from an area of high
concentration to an area of low concentration is called
diffusion
True
v. Plant cells are bounded by a wall made of cellulose.
True
vi. A dilute solution is called a hypertonic solution
False
vii. Cell wall of a plant cell is a living structure.
False
.
Fill in the blanks :--
i. An ostrich egg is the -------- animal cell
biggest
ii. Cellular organelles called ------ are often called suicidal
bags.
lysosomes
iii. The additional protective layer in plant cells present outside
the plasma membrane is called ------ .
Cell wall
iv. Plant cell wall is ----- permeable membrane
Freely permeable membrane
Name the following :--
i. The 2 sex hormones
Testesterone, Oestrogen
ii. Endoplasmic reticulum having the ribosomes on it
Rough Endoplasmic Reticulum
iii. The molecules of this substance are present in the ribosomes
Ribonucleic Acid
iv. The organelles that despatch material to the various parts of
the cell.
Golgi bodies
v. The melanin pigment is stored in this.
Vacuoles
vi. This extends from the plasma membrane to the nuclear
membrane.
Endoplasmic reticulum
4. Give reasons for :-
i. Why are golgi bodies not present in the RBCs?
RBCs do not contain nucleus
ii. Animal cell does not have a cell wall
Mechanical support given by skeletal system.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
