Unit 3 Test Review Pt. 1

Question 1

where does cell. respiration occur

Answer 1

mitochondria

Question 2

equation for cell respiration

Answer 2

C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy

Question 3

what are the diff kinds?

Answer 3

aerobic/anaerobic

Question 4

aerobic respiration..

Answer 4

• use oxygen
• LOTS of ATP
• multicellular (big animal)

Question 5

anaerobic respiration..

Answer 5

• no oxygen
• makes little oxygen
• unicellular (tiny bacteria like yeast)

Question 6

what are the parts to aerobic respiration

Answer 6

• glycolysis
• krebs cycle
• electron transport chain (ETC)

Question 7

location of glycolysis

Answer 7

cytoplasm

Question 8

location of krebs cycle

Answer 8

mitochondrial matrix

Question 9

location of ETC

Answer 9

inner mitochondrial matrix

Question 10

what is the part of anaerobic respiration/ where is it?

Answer 10

glycolysis, cytoplasm

Question 11

what is glycolysis?

Answer 11

breaking down a 6-C sugar into 2 3-C pyruvate
2 ATP gain

Question 12

what is krebs cycle/citric acid cycle?

Answer 12

• Pyruvate goes to mitochondrial matrix + changed into Acetyl CoA
• CO2, 2 ATP, NADH, FADH2 made

Question 13

what is electron transport chain?

Answer 13

• NADH/FADH2 take off their hydrogen to donate an electron, which travels through the proteins until taken on by an oxygen, which also takes on 2 hydrogens to turn into water
• the electricity from electrons moving pulls the hydrogen up through the proteins and to the outside of the inner mitochondrial membrane
• ATP synthase

Question 14

how does mitochondria reproduce?

Answer 14

binary fission

Question 15

what are the 2 things that the electron carriers (NADH/ FADH2) bring to the electron transport proteins?

Answer 15

electrons and hydrogen ions

Question 16

how is ATP made through the ATP synthase?

Answer 16

everytime a hydrogen goes through, it attaches the phosphate onto ADP to make ATP

Question 17

what happens during fermentation in muscle cells?

Answer 17

the 2 pyruvates turn into lactate, which accepts the electrons from NADH, so we can make NAD+ which can be recycled again

Question 18

what is the problem that exists if no oxygen is present

Answer 18

glycolysis will stop because there is no NAD+ to turnn into NADH