Selina solutions

Selina solutions

Grade 8

Transportation in plants | Long Answer Questions (LA)

Question 3

Practice Question:

"Raisins swell in water, and grapes shrink in syrup." Explain this phenomenon briefly.

Solution:

When we put some raisins in a bowl containing, and some soft-skinned grapes in another bowl containing thick syrup of sugar. After 10-12 hours we see raisins have absorbed water and swelled whereas the grapes have shrunken. This happened because of the peel acting like a semi-permeable membrane.

The experiment states that the peel over the raisins and that of grapes act as a semipermeable membrane. This membrane has very minute pores which allow water molecules to pass through but prevent the larger ones of sugar.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your biology exam ?

Learn from an expert tutor.

Book a free class now
subject-cta

Question 3

Practice Question:

"Raisins swell in water, and grapes shrink in syrup." Explain this phenomenon briefly.

Solution:

When we put some raisins in a bowl containing, and some soft-skinned grapes in another bowl containing thick syrup of sugar. After 10-12 hours we see raisins have absorbed water and swelled whereas the grapes have shrunken. This happened because of the peel acting like a semi-permeable membrane.

The experiment states that the peel over the raisins and that of grapes act as a semipermeable membrane. This membrane has very minute pores which allow water molecules to pass through but prevent the larger ones of sugar.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your biology exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
linkedin instgram facebook youtube
2020 © Quality Tutorials Pvt Ltd All rights reserved
linkedin instgram facebook youtube