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ROYAL PUBLIC SCHOOL
SECTOR – IV / B.S.CITY / SESSION 2016 -17
ASSIGNMENT WORK
Class – VIII
Sub – Science
Topic – 2. THE CELL
MULTIPLE CHOICE QUESTIONS
1. The lowest level of organization in a multicellular organism is
a. Organ
b. cell
c. tissue
d. organ
2. Which one of the following has a prokaryote structure?
a. Amoeba
b. bacteria
c. paramecium
d. spirogyra
3. Which cell organelle is responsible for cell respiration?
a. Mitochondria b. ribosome
c. centrosome d. golgi body
4. The activities of the cell are controlled by
a. Nucleus
b. ribosome
c. chromosomes
d. vacuoles
5. Which one of the following is not correct for cell wall of plant cells?
a. It is made up of cellulose
b. It protects the cells
c. It is made up of fats
d. It gives shape to the cell
6. The cell organelle involved in photosynthesis is
a. Mitochondria b. plastid
c. ribosome
d. cell wall
7. What name is given to such cells which have a well-organized nucleus with a nuclear membrane?
a. Prokaryotic cells
b. eukaryotic cells
c. dividing cells
d. non-dividing cells
8. What is the green pigment present in plastids called?
a. Chlorophyll
b. chromophyll
c. xanthophyll
d. carotenoids
9. What name is given to the unit of inheritance in living organisms which controls the transfer of a hereditary
characteristic from parents to offspring?
a. Gene
b. chromosome
c. nucleus
d. cytoplasm
10. Which organelle you will not find in human cheek cell?
a. Ribosome
b. nucleus
c. nucleolus
d. chloroplast
11. The outer covering of a plant cell is called ……………… .
a. Cell wall
b. plasma membrane
c. nucleoplasm
d. cytoplasm
12. The lowest level of organization which has life is……………………. .
a. Cell
b. organism
c. organ
d. organ system
13. The power house of the cell is ………………… .
a. Nucleus
b. mitochondrion
c. ribosome
d. plastid
14. Plant cell does not have …………………. .
a. Cell wall
b. plastid
c. cell membrane
d. centrosome
15. The cells of onion peel are example of ………………….
a. Plant cell
b. bacterial cell
c. animal cell
d. fungal cell
16. In the centre of the plant cell, we find a large ………………….. .
a. Vacuole
b. nucleus
c. cell wall
d. plastid
17. The magnification power of an electron microscope is …………….. times.
a. 100-500
b. 100-200
c. 1000-10000 d. 100,000-500,000
18. Which of the following is not a unicellular organism?
a. Amoeba
b. paramecium c. hydra
d. euglena
19. Which of the following in not a stain?
a. Safranin
b. kerosene
c. eosin
d. methylene blue
FILL IN THE BLANKS.
1. ……………… is the structural and function unit of organisms.
2. ……………… coined the term cell.
3. ……………….. are called the food factories of cell.
4. Centromere is present only in …………………. Cell.
5. ……………….. cell do not have a well-defined nucleus.
6. The basic components of a cell are …………………… , …………………. and ……………… .
7. Organ is made up of smaller parts called ……………………. .
8. The smallest cells in human body are ………………. .
9. The outer thick layer in a plant cell is called ……………… .
10. Different tissues join together to form an ……………………
11. Every cell is bound by ………………….. .
12. Bacteria and blue-green algae are …………………. .
13. The cells which do not have a well-organised nucleus are called………………
14. The carrier of genetic characteristics from the parents to the offspring are ………….. .
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15. Amoeba has no definite ………………….. .
STATE TRUE OF FALSE.
1.
The structure of plant and animal cells is the same.
2.
Mitochondria are not found in plant cells as plants do not respire.
3.
Nucleus controls the activities of the cell.
4.
Synthesis of food takes place in mitochondria.
5.
Within the body of multicellular organisms, the cells are modified as per function they perform.
6.
Paramecium is a unicellular organism.
7.
Unicellular organisms have one –celled body.
8.
Muscle cells are branched structures.
9.
The basic living structure of an organism is an organ.
10. Amoeba has irregular shape.
MATCHING TYPE QUESTIONS ( MTQ)
1.
2.
3.
4.
5.
6.
7.
8.
9.
Column A
Cell membrane
Mitochondria
Chloroplast
Nucleus
Chromosome
Prokaryote
Chromosome
Chloroplast
Eukaryote
Column B
a. inheritance of characteristics
b. controls the activities of the cell
c. gives shape to the cell, outer covers
d. power house of the cell
e. synthesis of food
f. gene
g. green plastids
h. animals
i. blue-green algae
VERY SHORT ANSWER QUESTIONS.
1.
Who discovered cell?
2.
Name two unicellular organisms.
3.
Which cell organelle helps in photosynthesis?
4.
Which is the longest cell of the body?
5.
Give an example of a prokaryote.
6.
Which part of the cell controls all its activities?
7.
Of what substance the cell wall of plants is composed?
8.
Do all the cells have same shape and size?
9.
What is meant by a tissue?
10. What is an organ?
11. What is the advantage of change in shape to white blood cells?
12. What is the difference in the plant and animal cell with respect to the vacuole?
13. Name the instrument used to study cells.
14. What does the chloroplast contain?
15. Which part of the cell contains organelles?
16. Who coined the term ‘cell’?
17. Name two cells that do not have any fixed shape.
18. Name any two cell organelles which are present in a plant cell but not in an animal cell.
SHORT ANSWER QUESTIONS.
1.
Define a cell.
2.
What are the main points of the cell theory?
3.
Why are mitochondria known as power house of the cell?
4.
Why are mitochondria known as power house of the cell?
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5.
Where are chromosomes located?
6.
Which part of the cell contains organelles?
7.
What are cell organelles
8.
Which part of the cell contains organelles?
9.
Give one difference between prokaryotes and eukaryotes.
10. What is the role of plastids in plants?
11. What are chloroplasts?
12. What is meant by ‘staining’?
13. Give an example each of
a.
A spherical cell
b.
A spindle-shaped cell
c.
An elongated cell
d.
An oval – shaped cell
14. Why are chloroplasts found in plant cells only?
15. How do chromatin fibres form chromosome?
16. What are unicellular and multicellular organisms? Give two examples of each.
17. What are eukaryotic cells? Name any two eukaryotes.
18. Different organs work together to perform a specific life function.
a.
What is the association of different organs to perform a particular function called?
b. What should we learn from these organ systems
LONG ANSWER QUESTIONS.
1.
Differentiate between plant cell and animal cell.
2.
Draw a neat and labeled diagram of an animal cell.
3.
What are the functions of the following cell organelles?
4.
State the differences between Eukaryotic cell and Prokaryotic cell.
5.
What is cell division? How are new cells formed?
6.
Do the cells in bigger animals have bigger size? Explain.
7.
Why do we call the cell as the basic structural and functional unit of life?
8.
Give three differences between plant and animal cells.
9.
Write short notes on the following:
a.
Cytoplasm
b. nucleus of a cell
10. Draw a neat and labeled diagram of :
a.
Plant cell
b. animal cell
11. How the discovery of cell look place? Explain.
12. Draw a labeled diagram of an animal cell.
13. Differentiate between an animal cell and a plant cell. Give and five differences.
14. What is the function of the following in the cell?
a.
Mitochondria
b. cell membrane
c. vacuole
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d. ribosome
e. nucleus