photosynthesis & cellular respiration

the most consumed produce in the US

tomatoes

primary pigment of photsynthesis

chlorophyll (energizes electrons using specific wavelengths of light)

contains mild antiobiotics that fight infections, soothes burns, & bee stings

onions

photosynthesis produces

ONLY food (oxygen bi-product)

energy

the ability to do work

autotroph (producer)

uses light from the sun to produce food

heterotroph (consumer)

obtains energy from the food the consume

atp

adenosine triphosphate; basic energy source of ALL cells; stores and releases energy

photosynthesis

captures/stores energy for cells

stomata

opening on a leaf surface for gas exchange (pores)

light dependent reactions

• light splits H2O into electrons and O2

• high energy electrons move through the etc

• electron carriers form (ADP & NADP+)

• H+ pumped across the membrane (ATP synthesis)

• phosphate group added: ADP → ATP

calvin cycle

uses the energy in ATP & NADPH from the light reactions to produce high energy sugars

cellular respiration

• releases energy for cells

• uses the energy

3 steps of cr

• glycolysis - splits glucose in half

• 1 molecule of glucose

• 2 molecules of pyruvic acid (3 carbon chain)

  *takes place in cytoplasm

kreb’s cycle

pyruvic acid is broken down into CO2; generates ATP and many energized electrons for the ETC

ETC

uses high energy electrons from kreb’s cycle to convert ADP into ATP; creates the most ATP

fermentation (anarobic respiration - no O2)

releases energy from food by producing ATP in the absence of oxygen

alcoholic fermentation

pyruvic acid + NADH → alcohol + CO2 + NAD+

(causes bread dough to rise)

lactic acid fermentation

fermentation → lactate

produced in muscles during rapid exercise