Exam (elaborations)
12.1_ CHARACTERISTICS OF PLANTS.
- Institution
- LPSP1202 - Chapitre 12 - Troubles Du Sommeil
12.1_ CHARACTERISTICS OF PLANTS.
[Show more]
Seller
Follow
Content preview
12.1: CHARACTERISTICS OF PLANTSThe basic needs of a plant are:
1. Energy (from sunlight)
2. Nutrients (from roots/soil)
3. Water (from root/soil)
4. Gas exchange (from leaves/stems → photosynthesis; from roots →stomata)
5. Protection from herbivores and diseases (thorns, poison, etc)
6. Reproduction (from seed, pollen, cones, fruit, flowers, spores)
Plants capture energy from incoming solar radiation and convert it into chemical
energy through photosynthesis:
● 6CO2 (g)+ 6H2O(l) → C6H12O6 (s)+6O2 (g)
● Carbon dioxide + water → glucose + oxygen
Glucose is a carbohydrate. A Carbohydrate is a molecule that contains only atoms of
carbon, hydrogen, and oxygen in a ratio of 1:2:1.
● Carbohydrates are the main source of chemical energy plants need for
maintenance, growth, and development.
● Plants are autotrophic.
Nutrient Adaptations: Plants need nitrogen, phosphorus, and potassium to synthesize
proteins, lipids, and other compounds needed in their cells.
● Plants have a symbiotic relationship with Mycorrhizal fungi that are attached to
their roots. This allows them to extend their surface area and absorb nutrients
and water. They give plants nutrients and moisture in the soil in exchange for
glucose.
Capturing Light Adaptations: Because capturing light is an important process in
photosynthesis, plants have developed different methods of maximizing capturing light.
For example, some plants adjust the position of their leaves to maximize their exposure
to sunlight. This process is called phototropism.
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card for the summaries. There is no membership needed.
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 lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.50. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now