Cell Shape and Size

Q. The shape and size of the cell depends upon its .

1. reproduction
2. age
3. function

Q.

What is zygote?

Q. Name the smallest cell and the largest cell in the human.

Q. Which is the largest cell?

1. Ostrich Egg
2. Nerve cell
3. Smooth muscle cell
4. Amoeba

Q. <!--br {mso-data-placement:same-cell;}--> Multicellular organisms exhibit division of labour. Comment.

Q. Match the following types of cells with their appropriate shapes:

Column A	Column B
1. Nerve cell	a. Irregular
2. RBC	b. Rectangular
3. Amoeba	c. Thread-like
4. Plant cell	d. Biconcave

1. 1 – d; 2 – c; 3 – b; 4 – a
2. 1 – c; 2 – d; 3 – a; 4 – b
3. 1 – c; 3 – d; 3 – b; 4 – a
4. 1 – d; 2 – c; 3 – a; 4 – b

Q.

The largest cell in the human body is

1. WBCs

2. RBCs

3. Sperm

4. Ovum

Q.

Name the part of the brain associated with memory.

Q.

Head of the sperm contains nucleus

1. True
2. False

Q. Difference between unicellular and multicellular.

Q.

Nerve cells are long and have branches.

1. True
2. False

Q. Which of the following body cell use pseudopodia to engulf the pathogen during phagocytosis?

1. White Blood Cells
2. Platelets
3. Red Blood Cells
4. Nerve cells

Q. Which of the following fights against pathogens in our body?

1. RBC
2. WBC
3. Platellets
4. Plasma

Q. Which among the following contains the largest single cell?

1. Peacock's egg
2. Lizard's egg
3. Shark's egg
4. Ostrich's egg

Q.

Why the nerve cell is so long?

Q. <!--br {mso-data-placement:same-cell;}--> Multicellular organisms exhibit division of labour. Comment.

Q. The largest cell measuring .........., is the egg of an ostrich.

1. 130 mm-180 mm
2. 130 mm-150 mm
3. 130 mm-170 mm
4. 170 mm-190 mm

Q. Which of the following statement are false?
(a) Most cells are tiny with volume range of $1-100$ $n{m}^3$
(b) Some cells have microvelli to increase the absorptive surface area.
(c) All cells arise from pre-existing cells.
(d) In plants, translocation of solutes is performed by xylem vessels and tracheids.
(e) According to cell theory, all cells arise from abiotic material.

1. b), c) and d) are false.
2. c), d) and e) are false.
3. a), c) and e) are false.
4. a), d) and e) are false.

Q. Which of the following is the largest cell in human body?

1. Sensory nerve cell
2. Purkinje nerve cell
3. Kupffer liver cell
4. Astrocyte brain cell

Q.

The smallest cell is ____________

Q. Give examples of unicellular and multi cellular organisms.

Q. Which of the following organisms are multicellular?

1. Rose
2. Human
3. Yeast
4. Both A and B

Q. The smallest human cell is

1. Erythrocyte
2. Sperm
3. Liver cell
4. Kidney cell

Q.

Which of the following are characteristics of WBC?

1. True
2. False

3. They transport oxygen

4. They change shape

Q. Paramoecium is a multicellular animal.

1. True
2. False

Q. Human egg is larger than human sperm because it has

1. Larger nucleus.
2. More membranes.
3. Core cytoplasm.
4. All of the above.

Q. Organisms made of more than one cell are called_______.

Q. All living cells are of the same shape and size.

1. False
2. True

Q.

Differentiate between gamete and zygote.

Q. Zygote is the first cell of the life. Explain.