Cell Respiration

Question 1

how dos cell respiration starts? (before)

Answer 1

• removing carbohidrates from food, then transporting it to the bloodstream.
• glucose will leave the bloodstream and enter a tissue cell.

Question 2

Which are the FOUR steps of Cell respiration?

Answer 2

1. glycolysis
2. oxidation of pyruvate
3. kreb´s cycle
4. electron transport chain

Question 3

G what does glycolysis literally means?

Answer 3

“spliting suggars”

Question 4

G where does it occurs?

Answer 4

in the cytoplasm

Question 5

G which are its two phase?

Answer 5

energy investment phase and harvesting phase

Question 6

G. I: glucose is in contact with … and what is the result of that?

Answer 6

glucose is in contact with 2ATP and that makes a 6 carbon sugar biphosphate molecule.

Question 7

G.I: the 6 carbon sugar biphosphate splits creating (…) and the harvesting phase begins

Answer 7

2 G3P =

2 Pccc

Question 8

G.I: formule for Glycolysis investment phase

Answer 8

Glucose + 2ATP = PccccccP

PccccccP / 2 = 2Pccc

Question 9

G.H: explain the Harvesting phase

Answer 9

the 2 molecules of G3P (three carbons, 1 phosphate) plus 2NADP+ plus 4ADP will result into 2molecules of three carbons, 2NADH and 4ATP

Question 10

G.H Formule the harvesting phase

Answer 10

2G3P + (2NADP+) + 4ADP = 2ccc + 2NADH + 4ATP

2Pccc + (2NADP+) + 4ADP = 2ccc + 2NADH + 4ATP
pyruvates

Question 11

G- K: where does the pyruvates and NADH goes after glycolysis?

Answer 11

To the mitochondria

Question 12

K: what happens before the KC:

Answer 12

the 2 molecules of pyruvates (2ccc) oxidate

Question 13

K: which are the products of 1 pyruvate oxidated?

Answer 13

Acetyl-CoA (2cc CoA)
NADH
Carbon dioxide (CO2)

Question 14

K. give the formule for the KC:

Answer 14

1. (cc CoA) + cccc = cccccc
   (CoA)
2. cccccc + NADP+ = ccccc
   (CO2) (NADH)
3. ccccc + NADP+ = cccc
   (CO2) (NADH)
4. cccc + ADP + P = cccc
   (ATP)
5. cccc + FAP+ = cccc
   (FADH)
6. cccc + NADP+ = cccc
   (NADH)

Question 15

K. for every glucose that enter glycolysis this cycle is completed…

Answer 15

twice

Question 16

K. name all the products (w/numbers) that result form 1 glucose molecule:

Answer 16

6NADH, 6C02, 2ATP, 2FADH

Question 17

E. where does it happens?

Answer 17

in the mitochondrion membrane

Question 18

E. which is it´s biproduct?

Answer 18

water

Question 19

E. explain

Answer 19

in the first station of the membrane, NADH is in contact, leaves its electrons in there, and it´s converted to positive
(NADP+). in the electron transport chain, there´s another station beneat it that is in contact with FADH and converts it to (FAP+). both electrons pass to the next station (protein) and this repeats.
in the third station water is made. the H+ from outside joins with O2 and e- and create water. we also have the ATP-ase.

Question 20

give the net ATP for each part of the cell respiration

Answer 20

Glycolisis = 2
Oxidation of glucose= none
Krebs cycle= 2
ETC= 32 ATP

Question 21

what happens with 02 and CO2

Answer 21

02 is needed in the ETC. 02 enters and C02 is expelled.