WHAT I SHOULD KNOW ABOUT PHOTOSYNTHESIS

What is an organism called that can make its own food? AUTOTROPH ​ Give an example of an autotroph: GREEN PLANTS

What is an organism called that CAN’T make its own food? HETEROTROPH ​ Give an example of an heterotroph: ANIMALS, HUMANS, FUNGI, MOST BACTERIA ​

Which molecule is used by living things to store and transfer energy? ATP ​

What are the parts of an ATP molecule? A = ADENINE B = RIBOSE SUGAR C = PHOSPHATES

Write the equation that shows how ADP is changed into ATP. ADP + P + energy → ATP ​ Cells STORE ENERGY by ADDING the P to ADP ​

Write the equation that shows how ATP is changed into ADP. ADP + P + energy → ATP ​ Cells RELEASE ENERGY by REMOVING the P from ATP ​ How many Phosphate groups are attached to ADP? __2___ ​ How many Phosphate groups are attached to ATP? 3____ ​

Light

Be able to write the chemical equation for photosynthesis: 6 CO2 + 6 H20 → C6H12O6 + 6 O2 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

What are LIGHT ABSORBING molecules called? PIGMENTS ​

What is the main pigment used by green plants to absorb energy? CHLOROPHYLL ​

What are groups of light collecting pigments called? PHOTOSYSTEMS ​

Which wavelengths of light are best absorbed by chlorophyll? RED & BLUE-VIOLET ​

Which wavelengths of light are reflected by chlorophyll? GREEN ​

What other pigments do plants have? CAROTENOIDS (red, yellow, orange) ​ ​

Why do plants have these other pigments besides chlorophyll? THEY ABSORB OTHER WAVELENGTHS THAT CHLOROPHYLL CAN’T SO THEY HELP ​ CHLOROPHYLL USE MORE OF THE SUN’S ENERY ​

How do we see color? WE SEE REFLECTED LIGHT ​

Why do plants look green? CHLOROPHYLL REFLECTS GREEN LIGHT ​

Label the parts of a chloroplast and tell where the reactions for photosynthesis happen.

A = THYLAKOID SAC ​ B = STROMA ​ C = GRANUM ​ D = THYLAKOID SPACE ​ E = CYTOPLASM ​

What do we call proteins that help chemical reactions happen? ENZYMES ​

Which molecule makes ATP by adding a P onto ADP? ATP SYNTHASE ​

Where are the enzymes for the LIGHT DEPENDENT reactions located? IN THE THYLAKOID MEMBRANE

Where are the enzymes for the LIGHT INDEPENDENT reactions located? IN THE STROMA ​ ​ ​

The LIGHT INDEPENDENT reactions are also called ? CALVIN CYCLE ​

Which reactions in photosynthesis require light? LIGHT DEPENDENT ​

Which reactions in photosynthesis do not require light? LIGHT INDEPENDENT (CALVIN CYCLE) ​

Which gas is given off by green plants during photosynthesis? OXYGEN (O2) ​ ​ ​

Which gas is used up by green plants during photosynthesis? CARBON DIOXIDE (CO2) ​ ​ ​

What do we call the molecules on the left hand side of a chemical equation? REACTANTS ​

What do we call the molecules on the right hand side of a chemical equation? PRODUCTS ​

What happens during the Light Dependent reactions? PLANTS USE ENERGY FROM SUNLIGHT TO MAKE ATP & NADPH and GIVE OFF OXYGEN ​

What are the REACTANTS in the light dependent reactions? WATER (H2O) ​ ​ ​

What are the PRODUCTS of the light dependent reactions? ATP, NADPH, OXYGEN (O2) ​ ​ ​

Which molecules produced by the light-dependent reaction are used during the Calvin cycle? ATP & NADPH ​

What happens during the Calvin cycle?

PLANTS USE CO2, ATP, and NADPH TO MAKE GLUCOSE (C6H12O6) ​ ​ ​ ​ ​ ​ ​ ​ ​

What are the REACTANTS in the Calvin cycle? CO2, ATP, & NADPH ​ ​ ​

What are the PRODUCTS of the Calvin cycle? GLUCOSE (C6H12O6) ​ ​ ​ ​ ​ ​ ​

Where does the carbon(C) and oxygen (O) in glucose ultimately come from? FROM CO ​ ​2

Where does the hydrogen (H) that ends up in NADPH ultimately come from? FROM H2O ​ ​ ​

Where does the hydrogen (H) in glucose ultimately come from? FROM NADPH that got it from H2O ​ ​ ​

Which factors affect the rate of photosynthesis? AMOUNT OF WATER, TEMPERATURE, and LIGHT INTENSITY