Interview
IB biology photosynthesis notes
- Course
- Institution
- Book
It covers topic 2.9 and 8.3 in IBDP higher level Biology.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Summary document of Chapter 5 Evolution and biodiversity IB Biology
-
Tema 3: Metabolismo
-
IB Biology Full Course Notes + Required Drawings Units 1 - 11 & Option D
Seller
Follow
arathi3000
Content preview
¥¥¥ ¥ ÷¥h¥*¥ ⇒÷É¥
⇐
PHOTOSYNTHESIS Arathi Anand
By
*¥ ¥ f;÷¥ÉE¥D¥☒É¥%*
:•⇒¥-⇒
, Sunlight → high energy molecule
6 CO2 t G H z O → C G H iz Og t 602 (needs
ATP)
Photosynthesis is the production of carbon compounds in cells using
light
PRODUCTION OF CARBON COMPOUNDS energy .
0
Living organisms require complex carbon compounds to carry out life
processes and build the structures in their cells .
°
Photosynthesis involves the conversion of light energy into chemical energy
( carbohydrates , lipids, protein and nucleic acids ) .
°
Chloroplasts light energy from the sun and convert this energy
absorb into
chemical used by the organisms for
energy (glucose ) to be energy .
LIGHT FREQUENCY
°
Light from the sun is composed of a range of wavelengths .
0 The visible spectrum is the portion of the electromagnetic spectrum that
is visible to or can be detected
by the human eye .
Electromagnetic radiation
o in this range of wavelengths (400 to 700 nm )
is called visible light .
° All these wavelengths together form while light with violet 1 blue colors
,
having shorter
wavelength (more energy) and red colours having
longer wavelengths (less energy) .
° The two main colours of light that are absorbed by chlorophyll are
blue and red light .
is
° The main colour is reflected is
green light ,
which why most leaves look
green .
ACTION SPECTRUM
°
electromagnetic spectrum con sits of the entire range of
The
electromagnetic radiation .
° The
part of the spectrum that is involved in photosynthesis is called
the visible light spectrum .
°
An action spectrum is the rate of
a
photo synthesis plotted against
wavelength of light in chloroplasts at each different wavelengths .
0 The highest rates of
photosynthesis occur at red and blue wavelengths
o The
absorption spectrum shows the yo of light absorbed by the photosynthetic
in chloroplasts at each different
pigments wavelength .
°
The graphs are very photosynthesis occurs when light
similar because
is absorbed by the chlorophyll pigments ; therefore the wavelengths
rates of absorption will also have of
that have greatest high rates
photosynthesis .
o
wavelength of light is reflected
Green and therefore has a very
low yo
absorption level on the absorption spectra ( this is why most
leaves are green ) .
o
peak approximately a't 450hm
o peak approximately at 670hm
°
First peak is higher than the second peak
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 or Stuvia-credit 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 arathi3000. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now