Chapter 8 Photosynthesis Vocabulary – Flashcards
Unlock all answers in this set
Unlock answersquestion
autotroph
answer
organisms such as plants, which make their own food
question
heterotroph
answer
organisms such as animals, that cannot use the sun's energy directly; obtain energy from the foods they consume
question
ATP (adenosine triphosphate)
answer
one of the principal chemical compounds that cells use to store and release energy
question
photosynthesis
answer
plant use the energy of sunlight to convert water and carbon dioxide into high-energy carbohydrates-sugars and starches-and oxygen, a waste product
question
pigment
answer
light-absorbing molecule plants gather
question
chlorophyll
answer
the plant's principal pigment
question
thylakoid
answer
saclike photosynthetic membranes in chloroplasts
question
photosystem
answer
clusters where proteins in the thylakoid membrane organize chlorophyll and other pigments
question
stroma
answer
the region outside the thylakoid membranes
question
NADP+
answer
carrier molecule that accepts and holds 2 high-energy electrons along with a hydrogen ion
question
Light-dependent reactions
answer
reactions that require light
question
ATP synthase
answer
protein in cell membrane that spans the membrane and allow H+ ions to pass through it
question
Calvin Cycle
answer
when plants use the energy that ATP and NADPH contain to build high-energy compounds that can be stored for a long time
question
Equation for Photosynthesis
answer
6CO(2)+ 6H(2)0 -(Light)-> C(6)H(12)O(6)+ 6O(2) Carbon dioxide+ water (implies light) = sugars + oxygen
