Complete the following sentences by choosing the correct alternative out of those given within the brackets :
1. ___ is a green plastid containing the pigment chlorophyll. (chloroplast/ chromoplast).
2. ___ is a membrane-bound non living structure in a Cell. (vacuole/nucleus).
3. The ___ plays an important role in heredity, cell division and protein synthesis. (Nucleus/Golgi body).
4. In ___ and ___, the nuclear membrane is absent. (bacteria/ blue green algae/ plant cell)
5. All living cells contain___. (Protoplasm/chloroplast)
6. ___ is also known as powerhouse of the cell. (nucleus/ mitochondria)
7. Mitochondria are concerned with the process of___ (division/ respiration)
8. Mitochondria are generally found in ___cells. (eukaryotic/prokaryotic)
9. The endoplasmic reticulum is provided with a number of dot- like structures called____ (lysosomes/ribosomes)
10. The additional outermost non living layer of a plant cell is called___ (cell membrane/ cell wall)
11. Animal cells do not contain__ (plastids/centrosome)
12. The chromatin fibres are found in ____(nucleoplasm/ cytoplasm)
13. The largest cell in the animal kingdom is that of___egg.(Ostrich's/hen's)
14. ____control the entrance and exit of molecules ore ions. (Cell wall/ plasma membrane/vacuole)
15. _____ is a system of flattened Sacs interview and those plasmic reticulum and tubules. (endoplasmic reticulum/vacuoles/nucleus)
16. The smooth endoplasmic reticulum does not possess any ___ (lysosomes/ ribosome/ mitochondria)
17. The term 'cell was coined by ____ (Robert Hooke/Theophrastus)
18. plant cells have both a ____ and a ___. (cell wall/ blood/ cell membrane)
19. The ribosomes are involved in protein synthesis with the help of three types of (ribonucleic acid/ nucleus/ amino acid)
20. Golgi complex is___ in function. (secretary/ photosynthetic/ respiratory)
21. The organelle which destroy foreign particles or digests worn- out cells are ___(nucleus/lysosome/ vacuole)
22. The part of a cell associated with heredity is ____. (chromosome/cytoplasm/ mitochondria)
B)
Fill in the blanks with suitable word(s) in the following statement from the list given below.
( ribosome and mitochondria; proteins ;nucleic acids ;proteins; cell membrane; organelles; genes; lipids ;cell )
1. plasma membrane is made up of ___and ___.
2. _____ is a thin membrane forming the boundary of the cell.
3. The cytoplasm contains a number of living structures called _____.
4. the ____ is the fundamental unit of structure and function of all organism.
5. chromosomes is a string of__.
6. chromosomes are mainly composed of ___and ___.
7. both plant and animal cells possess____
C) Fill the blanks with the suitable word/words in the following statements:
1. The nucleus contains___ and __.
2. The nucleus is associated with ___.
3. cell organelles ___, ____ and __ are absent in mature mammalian red blood cells.
4. cell wall is found only in ___
5. cell wall is made up of ___
6. organisms in which the nuclear materials is bound by a definite nuclear membrane are described as____.
7. cells arise from___ cells.
8. the most important structures within the cell is ____.
8. chloroplast is an organelle involved in_____.
D) NAME THE FOLLOWING:
1. chemical substance which constituent genes.
2. Structures within a cell concerned with different functions.
3. The organisms where cell theory is not applicable.
4. The suicidal bags of the cell.
OR
A cell organelle that is concerned with intracellular digestion.
5. The powerhouse of the cell
OR
structure within a cell concerned with the production of ATP.
6. The plastid containing green pigment.
7. The brain of the cell.
8. The term used for cytoplasm and nucleus together.
9. The site of protein synthesis in a cell.
OR
Protein factory of the cell.
10. The instrument which is required to observe cells.
11. The outermost covering of a plant cell.
12. Thread like structures found in the nucleus
OR
A cell component which is visible only during cell division stages.
13. The structure which is a system of flattened sacs and tubules.
14. The constituent containing DNA in nucleus.
15. Two cell organelles containing RNA.
16. Full form of RNA.
17. part of cells showing streaming.
18. the constituent containing DNA in chromosomes.
19. Amboeboid cells in humans.
20. The longest cells in animals.
21. The structure where a network of chromatin fibres occurs.
22. A cell organelle that secrets enzymes.
23. cytoplasmic organelle that trap solar energy.
24. A cell part which is a clean space with water or other substances in solution.
25. A cell part formed of an irregular network of tubular double membranes.
26. The unit of structure and function in living organism.
OR
basic unit of life.
27. The largest egg of any present-day animal.
28. plants that prepares their own food from basic raw materials.
29. The plastics which give colour of flowers and fruits.
OR
The plastids found in the cells of yellow coloured petals.
30. cytoplasmic organelles found only in animal cells
OR
the structure which initiates cell division in animal cells.
31. full form of a DNA.
32. duplicated chromosomes joined at a point termed as.
33. Cytoplasmic organelles that help in the manufacture of starch.
E) STATE THEhe FUNCTIONS
1. Centrosome
2. Cloroplast
3. Lysosomes
4. Leucoplasts
5. cell membrane
6.Golgi appartus
7. cell wall
8. endoplasmic reticulum
9. chromoplasts
10. ribosomes
11. mitochondria
F) MATCH the items in column 1 with those in column 2
COLUMN 1.
a) transmission of heredity characters to offsprings
b) Protein synthesis
c) energy Liberation
d) synthesis of ribosomes
e) Cell scavenging
COLUMN 2.
A) nucleus
B) lysosomes
C) ribosomes
D) chromosomes
E) mitochondria
G) MATCH the items in column 1 with those in COLUMN.2
COLUMN 1.
A) chloroplast
B) nucleoplasm
C) cell wall
D) mitochondria
E) cell sap
COLUMN 2.
a) cellulose
b) kitchen of the cell
c) plant cells
d) nucleus
e) power house of the cell
G) MATCH the items in column 1 with those in column 2
COLUMN 1.
A) cell wall
B) mitochondria
C) lysosomes
D) ribosomes
E) plasma membrane
COLUMN 2.
a) differential absorption
b) synthesis of proteins
c) production of ATP
d) rigidity to the cell
e) intracellular digestion
H) MATCH the items in column 1 with those in column 2.
COLUMN 1.
A) ribosomes
B) cisternae
C) chromatin
D) Cristae
E) chloroplast
COLUMN 2.
a) Golgi apparatus
b) mitochondria
c) nucleolus
d) photosynthesis
e) chromosomes
I) VERY SHORT ANSWER TYPE:
1. What are the main constituent of the plasma membrane ?
2. why are mitochondria called the powerhouse of the cell ?
3. what structure are usually present in all cells whether they are from an animal or from a plant ?
4. what cell structure is largely responsible for controlling the entry and exit of substance into or out of the cell?
5. Give the appropriate term for the following:
The carbohydrate molecules found in the cell wall.
J) CHOOSE THE ODD ONE OUT
1. Cell wall, Plastids, large vacuole, Centrosome
2. Xylem, Collenchyma, Cartilage, Parenchyma.
3. Vacuole, ribosome, mitochondria, centrosome .
4 fat droplets, glycogen, cell membrane, starch.
K) DIFFERENTIATION:
1. cell wall/cell membrane
2. plant cell/animal cell
3. tonoplast/cell membrane
4.
L) MULTIPLE CHOICE:
1. the site of protein synthesis is
A) nucleus. B) ribosome
C) mitochondria D) chloroplast
2. found only in animal cell:
A) ribosome. B) mitochondria
C) nucleaous D) centriole
3. concerned with the cellular respiration
A) mitochondria B) ribosome
C) chloroplast D) nucleus
4. not a characteristics of all organisms
A) ingestion. B) respiration
C) reproduction C) excretion
5. involves in the breakdown of simple food molecule
A) exprcretion B) respiration
C) ingestionin D) reproduction
Questions Based On Diagrams
1) The diagram shown represents a cell:
b) Is it a plant of an animal cell? Give one reason in support of your answer.
c) Name one important chemical substance found in part 1.
d) Name one organelle which is clearly shown in the diagram but has not been indicated by your answer.
e) According to the diagram how many cells would be surrounding this single cell?
2) Study the following figures showing the kinds of cells and answer the questions:
a) Name the parts 1 to 10 indicated by guidelines.
b) States one main function of ribosomes, mitochondria and chromosomes.
c) Which of these figures A or B represents animal cell ? Give three reasons in support of your answer.
3) Given below a diagrammatic sketch of a generalized cell as seen under the electron microscope.
b) Name the parts of the cell concerned with the synthesis of protein.
c) What is the function of part 1 in the physiological activity of the cell?
4) Figure is a diagrammatic sketch of a certain generalised cell.
b) Is it a plant or an animal cell? Give two reasons in support of your answer.
c) Is the cell as shown here turgid or flaccid ?
5) Figure: is the structure of a cell.
b) Is it a plant cell or an animal cell ? Give one reason to support your answer.
c) Is the cell shown here turgid or flaccid?
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