Difference between Diffusion and Osmosis

Q.

Discuss the role of osmosis in the physiology of a plant.

Q. Which of the following is not example of diffusion

1. A tea bag placed in water infusing
2. Smell of the perfume spreading
3. Food colouring dropped in water
4. raisins placed in water swell.

Q. Which of the following is true w.r.t diffusion and not osmosis

1. Movement of solid, liquid and gas
2. Movement of solvent only.
3. Movement of water across a membrane
4. Movement molecules need not involve a membrane.

Q.

Can osmosis be regarded as diffusion? Give reasons.

Q. Which of the following is not example of diffusion

1. A tea bag placed in water infusing
2. Smell of the perfume spreading
3. raisins placed in water swell.
4. Food colouring dropped in water

Q.

Mention one significance of osmosis?

Q. osmosis, diffusion, active transport, passive transport which one is odd one out and why?

Q. Which of the following processes does not require energy?

1. Osmosis
2. Facilitated diffusion
3. Simple diffusion
4. Active transport

Q. Imbibition occurs due to?

1. Increase in volume of imbibate
2. Adsorption of imbibate by imbibant
3. Absorption of imbibant by imbibate
4. Loss of energy in the form of heat

Q. Which of the following statements is true w.r.t both osmosis and diffusion

1. All of these
2. Occurs in both living and non-living systems
3. Does not require external energy to drive these processes
4. Takes place along the concentration gradient.

Q. Which of the following is true w.r.t diffusion and not osmosis

1. Movement of solid, liquid and gas
2. Movement of solvent only.
3. Movement of water across a membrane
4. Movement molecules need not involve a membrane.

Q. Which process is responsible for controlling the movement of guard cells?

1. Photosynthesis
2. Osmosis
3. Diffusion
4. Transpiration

Q. Water moves from a cell with _______ water potential to a cell with _______ water potential.

1. Higher, Lower
2. Lower, Higher
3. Less negative, More negative
4. Both (a) and (b)