100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BIO 102 Nutrition of plants and animals Notes $10.39   Add to cart

Class notes

BIO 102 Nutrition of plants and animals Notes

 1 view  0 purchase

This is a comprehensive and detailed note on BIO 102 Nutrition of plants and animals for bio 102.

Preview 2 out of 6  pages

  • September 20, 2024
  • 6
  • 2021/2022
  • Class notes
  • Prof. daniela
  • All classes
All documents for this subject (11)
avatar-seller
anyiamgeorge19
Nutrition of plants and animals
Friday, April 1, 2022 10:33 AM


• What do plants need to live?
○ Plants require carbon containing molecules and ATP for producing sugar
through photosynthesis:
§ Yet plants cannot live on sugar alone
○ Plants must harvest a wide variety of elements in the form of ions and
molecules
§ Nutrients are found in soil
§ The one-way flow of water carries these nutrients up the xylem
• Water movement in vascular plants: The cohesion-tension theory
1. Open stomata create a water potential gradient between the leaf
interior and its surroundings
2. Water evaporates from the walls of the parenchyma cells
3. Negative force generated at the air-water interface, pulls water from
roots to leaf
○ The sun - not ATP - provides the energy required to move water through
the xylem
○ What could be done to prevent the transpiration and keep water inside
the plant?
• What nutrients are essential?
○ Essential nutrients
§ Element or compound required for normal growth and
reproduction
○ Most vascular plants have 17 essential elements:
§ Three elements make up 96% of the dry mass of the plant:
□ Carbon
□ Hydrogen
□ Oxygen
○ Macronutrients
§ Plants need large quantities of macronutrients, certain elements,
from soil
§ Some of the major components of nucleic acid, proteins, and
phospholipids
§ Of the particular importance are these macronutrients

, □ Nitrogen, phosphorous, and potassium
□ Often act as limiting nutrients
® Their availability limit plant growth
○ Micronutrients
§ Plants require micronutrients in small quantities
§ Usually act as cofactors of specific enzymes
§ Micronutrients may be vital to plant health, even though they are
required in tiny amounts
□ Some but definitely not all (ones we need to know):
® Cobalt
® Sodium
® Silicon
• Nutritional Adaptations of Plants
○ Autotrophs: 99% of living plants are autotrophs:
§ Synthesize their own sugar through photosynthesis
○ However, a few plants don’t follow these rules:
§ Some plants parasitize other plants
§ Some plants create a mutualistic symbiotic relationship with
bacteria and fungi
§ Some plants appear to live on air
§ Some plants catch and digest insects
• Parasitic plants
○ Parasites:
§ Live on or in a host, obtaining water or nutrients from host and
reducing host's fitness
○ Heterotrophs plants
§ Produce structures that can penetrate host vascular system to
obtain water and nutrients
○ Most parasitic plants are photosynthetic and extract water and ions
from the xylem of host plant
• Epiphytic plants
○ Epiphytes - non parasitic:
§ Grow in absence of soil, often on leaves or branches of trees
○ Plants absorb water and nutrients from rainwater, dust, and particles
that collect in their tissues:
§ Nutrients are actually absorbed through the leaves
• Carnivorous plants
○ Carnivorous trap insects and other animals

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 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 these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller anyiamgeorge19. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $10.39. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

72042 documents were sold in the last 30 days

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

Start selling
$10.39
  • (0)
  Add to cart