key definitions

Question 1

heterotroph

Answer 1

an organism which consumes other plants or animals

Question 2

chloroplast

Answer 2

organelles in plants where photosynthesis takes place

Question 3

photosynthetic pigment

Answer 3

absorbs light at a particular wavelength

Question 4

thylakoid

Answer 4

folded membranes containing photosynthetic pigments and electron carrier proteins

Question 5

lamellae

Answer 5

thin pieces of thylakoid membrane which are connected to each other

Question 6

granum

Answer 6

stacked thylakoids

Question 7

photosystem

Answer 7

structures in thylakoid membrane made up of accessory pigments

Question 8

primary pigment reaction centre

Answer 8

contains chlorophyll a and b

Question 9

photophosphorylation

Answer 9

process by which light energy is used to produce ATP

Question 10

catabolism

Answer 10

break down of molecules

Question 11

oxidative phosphorylation

Answer 11

process by which cells generate ATP through transfer of electrons to oxygen

Question 12

chemiosmosis

Answer 12

process by which movement of H+ ions across a biological membrane generates ATP

Question 13

cotyledon

Answer 13

significant part of embryo found within a seed

Question 14

NADPH

Answer 14

reduction of NADP+ by addition of H molecule

Question 15

anabolism

Answer 15

build up of molecules