MYTUTOR SUBJECT ANSWERS

348 views

What's the difference between the light dependent and independent reactions?

These two sets of reactions are very different yet equally important in the process of photosynthesis.

The light dependent reactions consist of chlorophyll molecules absorbing a photon (hence light dependent) that causes electrons in the molecule to be raised to a higher energy level and pass down the electron transport chain, which makes energy available to produce ATP. The loss of electrons causes the splitting of water (known as photolysis) into 2H+, 1/2 Oand electrons, which replace those lost by the chlorophyll. The electrons that flowed through the electron transport chain combine with the hydrogen ions from water and NADP to form NADPH + H+. These reactions occur on the thylakoid membranes.

The light independent reactions consist of the Calvin cycle where CO2 is fixed by combining with RuBP to form 2GP, and then uses the products of the light dependent reactions to form GALP, which can be converted into many different products.

Harry J. A Level Biology tutor, A Level Chemistry tutor, GCSE Maths t...

2 years ago

Answered by Harry, an A Level Biology tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

131 SUBJECT SPECIALISTS

£20 /hr

Akshi K.

Degree: Medicine (MBCHB), Physiology (BSc) (Bachelors) - Bristol University

Subjects offered: Biology, Human Biology+ 2 more

Biology
Human Biology
-Personal Statements-
-Medical School Preparation-

“Hello! I am Akshi and I am currently in my 3rd year of medicine at the University of Bristol.”

£20 /hr

Runzhi C.

Degree: Medicine (Bachelors) - Imperial College London University

Subjects offered: Biology, Maths+ 3 more

Biology
Maths
Chemistry
-Personal Statements-
-Medical School Preparation-

“Hi there, I am a first year medical student at Imperial College London and I have lived in the UK all my life. I enjoy studying medicine because it encompasses both scientific knowledge and social aspects. I am relatively new to tutor...”

MyTutor guarantee

£20 /hr

Jonathan T.

Degree: Biological Sciences (with placement) (Bachelors) - Durham University

Subjects offered: Biology, Maths+ 1 more

Biology
Maths
Chemistry

“About me:I am a Biology student studying at Durham University but currently working in Cambridge on my year in Industry. I love all things Science and have a huge passion for sharing my knowledge in the field and developing others ...”

About the author

Harry J.

Currently unavailable: for regular students

Degree: Biological Sciences (Bachelors) - Durham University

Subjects offered: Biology, Maths+ 1 more

Biology
Maths
Chemistry

“A first year Biological Sciences undergraduate at Durham University with a passion for science and excited to tutor at both GCSE and A-Level.”

MyTutor guarantee

You may also like...

Posts by Harry

What are the different stages of mitosis and what do they consist of?

What's the difference between the light dependent and independent reactions?

Other A Level Biology questions

What events occur during the cardiac cycle?

How does the citric acid cycle work, and what is oxidative phosphorylation?

What is the function of the Loop of Henle?

Outline the roles of synapses in the nervous system

View A Level Biology tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok