Chromatin

Q.

In a cell which is not dividing, DNA is present as a part of the

___

material.

Q. Define the three processes by which plants absorb water and minerals from the soil.

Q. Question 8
Read the following terms and select the pair that is related to inheritance of characters.

(a) cell wall and cell membrane
(b) chromosome and mitochondria
(c) chloroplast and cell membrane
(d) chromosome and genes

Q. Which of the following statements is incorrect about cell wall?

1. It is made up of cellulose.
2. It is freely permeable.
3. It provides rigidity and shape to cells.
4. It is found in human cells.

Q. Label the parts in the animal cell.

1. Nucleus
2. ER
3. Nucleolus
4. Golgi bodies

Q. Explain why nucleus is known as the main control center of the cell.

Q. Which of the following will have a cell wall?

1. Leaf cells
2. Skin cells
3. Muscle cells
4. Nerve cells

Q. Which of the following will have a cell wall?

1. Muscle cells
2. Leaf cells
3. Nerve cells
4. Skin cells

Q. Plasma membrane is mainly composed of:

Q. Cell wall of plant cell is mainly composed of __________.

1. chitin
2. protein
3. cellulose
4. lipid

Q. Substances like carbon dioxide and oxygen move across the cell membrane by the process of___.

1. transpiration
2. respiration
3. photosynthesis
4. diffusion

Q. Cell wall of plant cell is mainly composed of __________.

1. chitin
2. protein
3. lipid
4. cellulose

Q. Plasma membrane is mainly composed of:

1. Lipids
2. Cellulose
3. Peptidoglycan
4. Chitin
5. Proteins

Q. Label the parts in the plant cell.

1. Cell wall
2. Vacuole
3. Chloroplast
4. Mitochondrion

Q.

State the function of chromatin.

Q. Plasma membrane is made up of two layers of and the protein molecules are embedded in it.

1. carbohydrates
2. cytoplasm
3. ribosomes
4. lysosomes
5. lipids

Q. Which of the following statements is incorrect about cell wall?

1. It is found in human cells.
2. It is freely permeable.
3. It is made up of cellulose.
4. It provides rigidity and shape to cells.

Q. Plasma membrane is made up of two layers of and the protein molecules are embedded in it.

1. carbohydrates
2. lysosomes
3. ribosomes
4. lipids
5. cytoplasm

Q. Explain why nucleus is known as the main control center of the cell.

Q. In a cell, location of genes is

1. Nucleus
2. Cell membrane
3. Lysosome
4. Golgi body

Q. The barrier which separates the protoplasm from the external environment is known as___.

1. ribosome
2. plasma membrane
3. chlorophyll
4. nucleus

Q. Assertion (A) : Both prokaryotes and eukaryotes are well developed.
Reason (R) : Eukaryotes have nuclear membrane as well as membrane bound cell organelles.

a. Both A and R are true, and R is the correct explanation
of A
b. Both A and R are true, and R is not the correct explanation
of A
c. A is false but R is true
d. Both A and R are false​

Q. Which of the following statements is incorrect about cell wall?

1. It is freely permeable.
2. It provides rigidity and shape to cells.
3. It is found in human cells.
4. It is made up of cellulose.

Q. Animal cells have as the outermost cover while plants have in addition to it.

1. cell membrane
2. cell wall
3. shell
4. cytoplasm

Q. The barrier which separates the protoplasm from the external environment is known as___.

1. chlorophyll
2. plasma membrane
3. ribosome
4. nucleus

Q. Animal cells have as the outermost cover while plants have in addition to it.

1. cytoplasm
2. shell
3. cell wall
4. cell membrane

Q. Which of the following statements is incorrect about cell wall?

1. It is found in human cells.
2. It is made up of cellulose.
3. It is freely permeable.
4. It provides rigidity and shape to cells.

Q.

Text Question:

Cell wall of fungi is made up of …………

Q. Explain why nucleus is known as the main control center of the cell. (3 marks)

Q. The thread like structure present in the nucleus of the cell is known as________