Advertisements
Advertisements
Question
Study the experimental setup in the figure and then answer the question that follow.
What is meant by 'semipermeable membrane'?
Solution
A semipermeable membrane is a membrane which allows the passage of molecules selectively. It allows a solvent such as water molecules to pass through it freely but prevents the passage of the solute (sugar or salt molecules in solution).
APPEARS IN
RELATED QUESTIONS
Study the diagram given below and answer the questions that follow:
- Name the process being studied in the above experiment.
- Explain the process mentioned in (a) above
- Why is oil placed over water?
- What do we observe with regard to the level of water when this set-up is placed in (1) bright sunlight, (2) humid conditions and (3) windy days?
- Mention any three adaptations found in plants to foster the process mentioned in (a) above
Choose the correct answer:
Absorption of water from soil takes place by __________
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
Guttation in plants occurs maximum at midday.
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Dry seeds when submerged in water swell up due to endosmosis.
Draw a cross-section of root showing association of soil particles with root hairs.
Write a note on the morphological structure of the root.
Identify the part of the plants which is responsible for maximum absorption of water.
Aquatic animals like fish excrete their wastes in gaseous form as
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
