MYTUTOR SUBJECT ANSWERS

11372 views

How are chloroplasts adapted to their function?

Many grana, large surface area for photosynthetic pigments, electron carriers and ATP synthase enzymes. 

Photosynthetic pigments are arranged into structures called photosystems, allows maximum absorption of light energy. 

Chloroplasts can make some of the proteins they need for photosynthesis, using genetic info from the chloroplast DNA and using the 70S ribosomes to make the proteins.

Grana surrounded by the stroma so the products from the light dependent reaction (which occur across the thylakoid membrane which make up the grana) can readily pass into the stroma for the light independent reaction. 

Chlorophyll is a mixture of pigments containing a long hydrocarbon chain and a porphyrin group with a magnesium atom in the centre. Chlorophyll a (and b) are found at the centre of the photosystems and are known as the primary pigment reaction centre. Each absorb red light at a slightly different wavelength.

Accessory pigments do not contain a porphyrin group and are not directly involved in the light dependent reaction. They absorb light wavelengths that are not well absorbed by chlorophylls and pass the light energy to chlorophyll a at the base of the photosystem. Carotenoids reflect yellow and orange light and absorb blue light. Carotene and xanthophyll are the main carotenoid pigments. 

They also contain lipid droplets which can be used in making the phospholipid bilayer of the inner and outer membrane of the chloroplast. 

Matthew A. Mentoring -Medical School Preparation- tutor, Uni Admissio...

2 years ago

Answered by Matthew, an A Level Biology tutor with MyTutor


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

190 SUBJECT SPECIALISTS

£36 /hr

Steven A.

Degree: Bioscience (Masters) - Durham University

Subjects offered:Biology, Science+ 5 more

Biology
Science
Maths
Human Biology
English
Chemistry
-Personal Statements-

“Hey! I'm Steven, 18 years old and I'm studying Biochemistry at Durham University. I love tutoring people, to put it simply. At my college i was a tutor to a student in the year below me for chemistry and growing up with a younger sist...”

£20 /hr

Ffion B.

Degree: Medicine (Bachelors) - Bristol University

Subjects offered:Biology, Religious Studies+ 5 more

Biology
Religious Studies
English
Chemistry
.UKCAT.
-Personal Statements-
-Medical School Preparation-

“Hi, my name is Ffion and I'm a first year medical student. I'm passionate about all of my subjects and I can't wait to help other students.”

£22 /hr

Naomi S.

Degree: Medicine (Bachelors) - Trinity College Dublin University

Subjects offered:Biology, Music+ 4 more

Biology
Music
Maths
Human Biology
Chemistry
-Medical School Preparation-

“*Available to teach exam revision sessions immediately.* I'm a medical student at Trinity College Dublin. ”

About the author

Matthew A.

Currently unavailable:

Degree: Medicine MBBS 5 (Bachelors) - St. George's University

Subjects offered:Biology, Maths+ 4 more

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

“Hi, my name is Matt and I'm a medical student at St George's University of London. I achieved A*A*A* at A level in Biology, Chemistry and Maths and 8 A*'s at GCSE . After having recently gone through the exam process, now more than ev...”

MyTutor guarantee

You may also like...

Other A Level Biology questions

What is the difference between a protein and a peptide?

In DNA, if you know the percentage of a base on 1 strand, how do you work out the bases on the opposite strand?

What are the key principles of evolution?

How do I identify the hormones when they are displayed on a graph of the mentsrual cycle?

View A Level Biology tutors

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

mtw:mercury1:status:ok