lab 9

use of cellular respiration

extract energy from organic molecules

cellular respiration process requres ? and gives off ?

oxygen, co2

name for ATP (common energy source in cells)

adenosine triphosphate

what is atp composed of

adenine and ribose, 3 phosphate groups

high energy electron-carrier molecules

NAD, FAD

NAD reduction

NAD  + H⁺  + 1e → NADH

NAD oxidation

NADH → NAD⁺  + H⁺  + 1e

FAD reduction

FAD + 2H⁺  + 2e → FADH

FAD oxidation

FADH2 → FAD + 2H⁺  + 2e

glycolysis

the most common metabolic pathway in all cells

where does glycolysis takes place

cytoplasm

aerobic

presence of oxygen

anaerobic

absence of oxygen

net production of glycolysis

2 ATP

2 NADH

2 Pyruvates

2 H2O

where do products of glycolysis transport to?

mitochondrion

how to keep glycolysis going under anaerobic conditions?

regenerate NAD+

lactic acid fermentation

list it down

alcoholic fermentation

list it down

where does lactic acid fermentation take place

muscle cells, animals and some bacteria

where does alcoholic fermentation take place

takes place in yeasts, bread and alcoholic beverages

result of CO2

bubbly, foamy

1 glycolysis is ? glucose molecule

one glucose molecule