Biology
A cell of a leaf of an aquatic plant is kept in a 5% salt solution for some time. The phenomenon which will take place is/are:
- turgidity
- plasmolysis
- turgidity and flaccidity
- plasmolysis and flaccidity
Answer
plasmolysis and flaccidity
Reason — When a cell of an aquatic plant is placed in a 5% salt solution (which is hypertonic to the cell), water will move out of the cell due to osmosis. This causes the cell membrane to shrink away from the cell wall, leading to plasmolysis. As a result, the cell will lose its firmness, becoming flaccid. Therefore, both plasmolysis and flaccidity will occur.
Related Questions
Thomas played cricket on a hot summer afternoon. His urine output was much less, though he drank plenty of water. What could be the possible cause?
P - Kidneys reabsorb a lot of water
Q - Sweat glands are active
R - Kidneys absorb less water
S - Sweat glands are inactive- R and Q
- P and Q
- P and S
- R and S
Acid rain is caused due to polluted gases like CO2, SO2, and oxides of nitrogen. The pollution which does not take place immediately after acid rain is:
- Air pollution
- Water pollution
- Soil Pollution
- Noise Pollution
Surya's father was diagnosed with Diabetes mellitus. The doctor advised him to avoid certain foods. Which are the foods he should avoid eating?
P - Sweets
Q - Leafy vegetables
R - Bananas
S - Pulses- P and R
- Q and S
- R and S
- P and Q
During light adaptation:
- Rods and cones become active.
- Rods and cones become inactive.
- Rods become active and cones inactive.
- Cones become active and rods inactive.