UNIT 2 - CELLULAR RESPIRATION

Question 1

what is a redox reaction

Answer 1

• a redox reaction is a chemical reaction that involves the transfer of electrons from one substance to another.
• redox reactions are coupled reactions that play a key role in the flow of energy through biological systems.

Question 2

what does LEO the lion says GER

Answer 2

when a molecule LOSES electrons, it OXIDIZES and undergone a process called oxidation.
when a molecule GAINS electrons, it REDUCES and undergone a process called reduction

Question 3

whats an example of a redox reaction

Answer 3

cellular respiration
when glucose is oxidizes, it loses electrons
oxygen is reduced so it gains electrons.
C6H1206 + 6 CO2 + 6H20 + ATP

Question 4

WHAts a series of redox reaction in cellular respiration?

Answer 4

C6H12O6 + 6 O2 –> 6 CO2 + 6 H20 + ENERGY
ORGANIC. INORGANIC ATP
this equation represents an overall reaction
- CR involves the oxidation of glucose thru a series of redox reactions
the enrgy released at each step is stores primarily in the form of atp molecules
this allowed the enrgy to be harnesed by the cell in steps instead of in one big step that would result in the enrgy loss and harm the cell

Question 5

what are electron carriers

Answer 5

electorns are said to carry reducing pwoer since the reduced form of a molecule(which accepts electrons carrying energy) is always at a higher energy level than the oxidized form. electron carriers are compound sthat pick up electrons from energy rich compounds and donate them to low energy compounds

Question 6

what are examples of electron carriers

Answer 6

NAD+ (NICOTINAMIDE ADENINE DINUCLEOTIDE) is reduced to NADH
FAD (flavin adenine dinucleoutide) and the reduced form is FADH2

Question 7

draw/ overlook the electron carrier iagram

Question 8

what is aerobic cellular respiration

Answer 8

cellular respiration includes the catabolic pathway that break down energy rich compounds such as glucose to produce atp
aerobic resperiation refers to those pathways that require oxygen since its aerobic silly

Question 9

what are the two productions of atp

Answer 9

substrate level phosphorylation
oxidative phosphorylation

Question 10

substrate level?

Answer 10

atp is formed DIRECTLY in an enzyme catalyzed reaction by transferring a phosphate grouup from the sugar derivated to adp
occurs during GLYCOLYSIS AND KREBS CYCLE BABY

Question 11

OXIDATIVE LEVEL???

Answer 11

atp is formed iNDERECTLY by a process that couples the oxidation of NAHD and FADH2 by the ETC with the synthesis of ATP by phosphorylation of ADP
OCCURS DURING ATP!!!

Question 12

LOOK OVER THE AERBOIC RESPIRATION PAPER AND UNDERSTAND IT BEAUTIFULLY PLEASE

Answer 12

DO HOMEWORK PG 121 +13-14
DO HOMEWORK PG 124 #7-11 PLS