Question

Biology Worksheet-3
1. What is diffusion?
2. Which of these molecules can not pass through a membrane to enter a cell?
A.lodine
B.Glucose
C.Oxygen
D.Starch
3. Give one example of osmosis. 4. Give one example of diffusion. 5. Write one difference between osmosis and diffusion.
6. State two type of osmosis. 7.Which are the three types of osmotic solutions.
8. Which materials are required in the activity of osmosis in raisins?
9. Name the two activities you learned for osmosis.
10. Which two solutions were used in glass jar in osmosis of​

Answer 1

Answer:

1.Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration.

2.this all cannot pass through a membrane to enter a cell.

3.

Examples of osmosis

when you keep raisins in water and the

raisin get puffed.

Movement of salt-water in animal cell

membrane.

Plants take water and minerals from

roots with the help of Osmosis.

If you are there in a bath tub or in a

water for long,your finger get pruned.

Finger skin absorb water and get

expanded.

4.permume is sprayed in one part

of room,yet soon it diffuses so

that you can smell it everywhere.

this is diffusion.

5.Osmosis is the movement of solvent particles across a membrane from a dilute into a concentrate solutions.

Diffusion is the movement of particles from an area of higher concentrate to lower concentrate.

6.Endosmosis,Hypotonic solutions.

7.hypersonic,isotonic and hypotonic.

8.Intact ,blotting paper, weight box, physical balance ,Petri dish.

9.do it your self.

please mark it as brainliest answer.