chapter 8 & 9 review Flashcards
(44 cards)
organisms that can make their own food
autotrophs
organisms that cannot make their own food
heterotrophs
what are the three parts of an ATP molecule
- adenine 2. ribose 3. three phosphate groups
when is energy released from an ATP molecule
when a phosphate bond is broken
what happens to ATP to convert it into ADP
one phosphate group is taken from ATP and is used to power respiration and photosynthesis
which scientist showed plants need light to grow
Jan Ingenhousz
photosynthesis uses sunlight to convert water and carbon dioxide into what
high-energy sugars and oxygen
what are the light-absorbing molecules that plants use to gather the sun’s energy
pigments
why do plants appear green
because they reflect green light
what is a granum
stacks of thylakoids
what is the stroma
fluid portion outside of the thylakoids
where in the chloroplast is chlorophyll found
in the thylakoid membranes
where do light-dependent reactions take place
the thylakoid membranes in the chloroplast
what is the role of NADP+ in photosynthesis
it’s an electron carrier; it accepts and holds 2 high-energy electrons and a hydrogen ion
what are the products of light-dependent reactions
ATP and NADPH; oxygen is a byproduct
what is another name for the Calvin cycle
light-independent reactions
where does the Calvin cycle take place
in the stroma of the chloroplast
what is produced in the Calvin cycle
a 6-carbon sugar molecule
if carbon dioxide was removed, what would happen to the plants sugar production
the plant wouldn’t be able to produce sugar
what affects the rate of photosynthesis
light, temperature, and water
what is the correct sequence of events in cellular respiration
glycolysis, the Krebs cycle, and the electron transport chain
what is released during cellular respiration
energy from food
cellular respiration uses 1 molecule of glucose to produce how many ATP molecules
36 ATP molecules
how do organisms get the energy they need
from the food they eat
