100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Summary Support and transport in plants R50,00
Add to cart

Summary

Summary Support and transport in plants

 30 views  0 purchase

Everything needed to get an A in this section is covered in these notes.

Preview 1 out of 4  pages

  • July 26, 2020
  • 4
  • 2017/2018
  • Summary
All documents for this subject (11)
avatar-seller
Zahn
Support and transport in plants

 Water is utilized in metabolism and lost from the leaves by transpiration.
 Water moves into root by osmosis. WP in soil is higher than in root therefor
the water moves into the root

Roots structurally suitable
1. L number of root hairs = L SA
2. No vacuole and thin cellulose cell wall
3. L vacuole with low water potential
4. New root hairs replace old ones, when the root tip grows. Allowing more
water sources to be reached

Three pathways
 Apoplast pathway – water moves through the cell walls without passing
through cytoplasm due to transpiration pull

 Symplast pathway – water moves by diffusion, down the water potential
gradient through the cytoplasm along plasmodasmata (cytoplasmic strands
which go through
pores of the cell)

 Vacuolar
pathway –
osmosis, along
WP gradient,
from the soil to
the xylem across
vacuoles of the
root



Transpiration

The process of water movement through the plant and its evaporation from aerial
parts such as leaves, stems and flowers

Where it takes place?
1. Stomata (90%)
2. Cuticle (+- 10%) – not
impermeable to gas
3. Lenticels – found on
woody stems

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying this summary from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Zahn. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy this summary for R50,00. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52510 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 14 years now

Start selling
R50,00
  • (0)
Add to cart
Added