Unit 3 Glycolysis

Question 1

What is Glycolysis?

Answer 1

parts of cellular respiration to break down glucose into pyruvate

Question 2

Where does glyolysis happen?

Answer 2

In the cytosol (cytoplasim) of the cell

Question 3

Why is glycolisis unique?

Answer 3

-only on to happen outside the mitorchondria
-can happen with or without the presence of oxygen

Question 4

what is the ration of Glucose molecules put in to ATP and NADH produced?

Glucose in : pyruvate : ATP : NADH

Answer 4

Glucose : pyruvate: ATP: NADH
1 : 2 : 2 : 2

net gain = 2 pyruvate, 2 ATP, 2 NADH

Question 5

what is the energy investment stage of glycolysis?

Answer 5

Energy investment:
-stages 1-5 of glycolysis

-ATP is used to split glucose molecule into 2 glyceraldehyde-3-phosphate (G3P)

Question 6

What are the enzymes in energy investment?

kinase = adding/taking phosphate group

isomerase= rearange

ase= spliting

Answer 6

Step 1: Glucose –> glucose-6-phosphate
hexokinase

Step 2: glucose-6-phosphate–> fruictose 6-phosphate
phosphogluose isomerase

step 3: fruictose 6-phosphate –> fructose 1, 6-phosphate
phosphofructokinase

step 4: fructose 1, 6-phosphate –> dohydroxyacetone
aldoase

step 5: dohydroxyacetone –> gyceraldhyde 3- phosphate
trisoe phasphate isomerase

Question 7

What is the Energy pay off stage of glycoysis?

Answer 7

Energy pay off
-stage 6-10
-produces ATP and NADH
-ends with 2 pyruvate

Question 8

What are the enzymes used in the energy pay off stage of glycolisis?

kinase = adding/taking phosphate group

isomerase= rearange

ase= spliting

Answer 8

stage 6:
glyceraldehyde 3- phosphate dehydrogenase basicly a kinase

stage 7:
phosphoglycerate kinase

stage 8:
phasoglycerate mutase (basicly a isomer)

stage 9:
enolase

stage 10:
pyruvate kinase

Question 9

Regulation
1. phosphofruictosekinases
2. Amount of ATP

Answer 9

1. phosphofruictosekinases: vary important enzyme in gycolisis
2. Amount of ATP