Study the table given below and answer the questions that follow. Cell Nucleus Cell wall Cell membrane Plastid Cell A Yes Yes Yes Yes Cell B Yes No Yes No Cell C No Yes Yes No Which of the cell is a plant cell?

Plant cells are different from animal cells because of the presence of cell walls, plastids and large vacuoles which are absent in animal cells. The outermost covering of an animal cell is made up of the cell membrane. Animal cells also contain centrosomes which are absent in plant cells. Thus, Cell A is a plant cell.

Match the statement in column A with those in Column B. S.No Column A S.No Column B 1. Cell (a) Plant cells 2. Nucleus (b) Tiny structures inside cells 3. Cell wall (c) Unit of living body 4. Chloroplast (d) Boss of the cell 5. Cytoplasm (e) Green pigment present 6. Organelles (f) Jelly-like substance between cell membrane and nucleus

1. A cell is the structural and functional unit of a living body. It helps in the formation of the tissue, organ, and the structure of an organism. 2. Nucleus controls all the functions of a cell, so called the boss of the cell. It contains the hereditary material called chromosomes. 3. Cell wall is present in the plant cells, and they are made up of cellulose. It provides rigidity and support. 4. The plants contain a green coloured pigment called chlorophyll. Chlorophyll is the green pigment present in chloroplast. This helps in the process of photosynthesis. 5. The cytoplasm is the jelly-like substance present within the cell membrane and out of the nucleus. In this cell-organelles are found. 6. Organelles are the tiny structures inside the cell, like mitochondria, Golgi complex, ribosomes, etc. S.No Column A S.No Column B 1. Cell (c) Unit of living body 2. Nucleus (d) Boss of the cell 3. Cell wall (a) Plant cells 4. Chloroplast (e) Green pigment present 5. Cytoplasm (f) Jelly-like substance between cell membrane and nucleus 6. Organelles (b) Tiny structures inside cells

Match the items in column I with those in column II. Column I Column II 1. Xylem a. Semipermeable 2. Phloem b. Permeable 3. Cell membrane c. Downward flow of sap 4. Root pressure d. Upward flow of water 5. Cell wall e. Guttation

(1)-(d) Xylem is a conducting tissue that conducts water in the plant. (2)-(c) Phloem is a conducting tissue that conducts food in the plants from leaves to roots. (3)-(a) The cell membrane is semipermeable or selectively permeable. (4)-(e) Root pressure creates guttation at night in some plants. (5)-(b) The cell wall is seen in plant cells and it is permeable. Column I Column II 1. Xylem d. Upward flow of water 2. Phloem c. Downward flow of sap 3. Cell membrane a. Semipermeable 4. Root pressure e. Guttation 5. Cell wall b. Permeable

What is a plastid What is the name of green plastids present in plant cells

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Differentiate between the following pairs on the basis of what is mentioned in the brackets:

Metaphase and Anaphase (Position of chromosomes)

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Bacteria are prokaryotic cells. Which of the following structures is found in both bacteria and plant cells ?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

What are the different types of plastids? State their functions.

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Label the different parts numbered 1 to 6 of the cell indicated by guidelines in the figure shown alongside :

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

There is one unicellular animal organism with a single flagellum with chloroplast in its cell name it. How would you establish that it is an animal and not a plant?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

What is the function of chloroplasts in a plant cell?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Study the table given below and answer the questions that follow.

Cell	Nucleus	Cell wall	Cell membrane	Plastid
Cell A	Yes	Yes	Yes	Yes
Cell B	Yes	No	Yes	No
Cell C	No	Yes	Yes	No

Which of the cell is a plant cell?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Explain why chloroplasts are found only in plant cells?

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Draw the general diagram of a plant cell and label it.

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Match the statement in column A with those in Column B.

S.No	Column A	S.No	Column B
1.	Cell	(a)	Plant cells
2.	Nucleus	(b)	Tiny structures inside cells
3.	Cell wall	(c)	Unit of living body
4.	Chloroplast	(d)	Boss of the cell
5.	Cytoplasm	(e)	Green pigment present
6.	Organelles	(f)	Jelly-like substance between cell membrane and nucleus

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Why are the following structures important to a plant cell?
(a) Cell wall (b) Chloroplast

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

You are given two prepared slides for study. One is showing onion peel and the other showing cheek cells, but they are not labelled. You are required to find out which is which? How would you do it?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

What parts are present only in plant cells?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

What do you mean by plastids? How many types of plastids do we have? Write down their names.

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.>Structure and Function - Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell.

Match the items in column I with those in column II.

Column I	Column II
1. Xylem	a. Semipermeable
2. Phloem	b. Permeable
3. Cell membrane	c. Downward flow of sap
4. Root pressure	d. Upward flow of water
5. Cell wall	e. Guttation