Cytoplasm

Q.

The intersection of a column and row in a spreadsheet is called a bon or

Q. Question 3 (a)
Write short notes on the following.
(a) Cytoplasm

Q.

What are the consequences if raisins are left for some time in pure water and then shifted to sugar solution?

Q.

Name the respiratory organ in Amoeba.

Q.

What is hypertonic and isotonic solution?

Q. How do a single celled organism like amoeba take in food?

Q. Which part of the cell contains organelles?

Q.

(a) What is cytoplasm? What is its function?
(b) What is protoplasm? Name the four elements which make up the major part of protoplasm.

Q.

Q 1 - What are the functions of different organelles in a cell ?

Q 2 - Described stepwise how you would make a slide of an onion peel and observe it under a microscope ?

Q. Which of the following organelles is found only in plant cells?

1. Lysosome
2. Chloroplast
3. Ribosome
4. Mitochondria

Q.

The concentration of solutes is equal inside and outside the cell and we call this condition as __________

1. Hypotonic solution

2. Isotonic solution

3. Osmotic solution

4. Hypertonic solution

Q.

The star-like cytoplasmic body adjacent to the nucleus is called ___.

1. Mitochondria

2. Centrosome

3. Plastid

4. Glogi bodies

Q.

Pseudopodia is

1. Vacuole of amoeba

2. Eye of amoeba

3. The heart of amoeba

4. Projections of varying length protruding out from the body of amoeba.

Q.

What are pseudopodia?

1. Eyes of amoeba
2. Vacuole of amoeba

3. The heart of amoeba

4. False-feet of amoeba

Q. Question 12
The most important function of cell membrane is that it:

(a) controls the entry and exit of materials from cells.
(b) controls only the entry of materials into cells.
(c) controls only the exit of materials from cells.
(d) allows entry and exit of materials without any control.

Q.

What is protoplasm?

Q.

Find out the false sentences:

1. Golgi apparatus is involved with the formation of lysosomes.

2. Nucleus, mitochondria and plastid have DNA; hence they are able to make their own structural proteins.

3. Mitochondria is said to be the power house of the cell as ATP is generated in them.

4. Cytoplasm is called as protoplasm.

Q.

Make a comparison and write down ways in which plant cells are different from animal cells.

Q. Question 4
Which part of the cell contains organelles?

Q. How do a single celled organism like amoeba take in food?

Q. Question 3 (a)
Write short notes on the following.
(a) Cytoplasm

Q.

What is a food vacuole?

1. Cell organelle of amoeba

2. Structure formed when amoeba engulfs food

3. Structure which throws food out of amoeba's body

4. Organelle containing undigested food

Q. A group of cells performing similar functions are known by a specific term. What is it?

Q. Identify the correct statements from the following.

Statement 1 - Growth in an organism is only a function of increase in individual cell size.

Statement 2 - As the number of cells increases, the size of the body increases. ​​[1 mark]

1. Only statement 1 is correct.
2. Both statements 1 and 2 are correct.
3. Only statement 2 is correct.
4. Both statements 1 and 2 are incorrect.

Q. Amoeba capture their food with the help of pseudopodia.

1. True
2. False

Q. ________ is the process in which cells lose water in a hypertonic solution.

1. plasmolysis
2. isotonic
3. hypertonic
4. none of these

Q.

Question 4
Which part of the cell contains organelles?

Q.

Define protoplasm.

Q. Amoeba capture their food with the help of pseudopodia.

1. True
2. False

Q. Cell membrane is a selectively permeable membrane.

1. True
2. False