Bio Exam 2.5 CR

Question 1

How do Cells get energy?

Answer 1

They can perform GLYCOLYSIS
They can form fermentation
They can form anaerobic respiration They can perform aerobic respiration

Question 2

What is the function of Glycolysis?

Answer 2

The breaking down of sugar

Question 3

Where does Glycolysis Occur?

Answer 3

In the Cytoplasm

Question 4

Where in the Krebs Cycle located?

Answer 4

In the interior of the Mitochondria

Question 5

Where is the Electron Transport Chain Located?

Answer 5

The inner mitochondrial membrane

Question 6

What does Glycolysis produce?

Answer 6

NADH - ATP - PYRUVATE

Question 7

What is the function of NADH

Answer 7

It is a Electron Carrier it gives electrons to the Electron Transport Chain

Question 8

What is substrate LEVEL phosphorylation?

Answer 8

it is where we get the phosphate to make ATP by stealing it from a substrate molecule

Question 9

How do we get to the Krebs cycle?

Answer 9

If oxygen is present then the cell will go into the mitochondria where the krebs cycle will take place

Question 10

What does the Krebs cycle produc?

Answer 10

CO2 - NADH - FADH2 - ATP

Question 11

What is the Function of the ELECTRON TRANSPORT CHAIN?

Answer 11

it is a number of molecules whos job it is to take the electrons from NADH and FADH2 and pass it on to its neighbors. Basically transferring electrons.

Question 12

ATP SYNTHAS

Answer 12

turns like a turbine and its going to grab free floating atp and free floating phosphate and its going to make ATP.

Question 13

IF WE GO THROUGHT AEROBIC RESPIRATION WE WILL GET 36 ATP MOLECULES, MOST EFFICIENT WAY TO GET ATP.

Answer 13

IF WE GO THROUGHT AEROBIC RESPIRATION WE WILL GET 36 ATP MOLECULES, MOST EFFICIENT WAY TO GET ATP.

Question 14

Whatt happens if we brake glucose down completely

Answer 14

we should give of 6 molecules of carbon dioxide

Question 15

C6-H12-O6 + 6O2 —- + 6H2O + ENERGY

Answer 15

C6-H12-O6 + 6O2 —- + 6H2O + ENERGY

Question 16

What happens in the krebs cycle

Answer 16

All the carbons come off as carbon dioxide, by the time the krebs cycle is over there are no more carbons from glucose left they have all gone as carbon dioxide and there was six carbons that were given away. A lot of NADH is going to be made and FDH2. The most important step in the kreb cycle is to move all of the electrons to the ELECTRON CARRIERS. A little bit of ATP WAS MADE

Question 17

NADH and FADH2

Answer 17

are electron CARRIERS.

Question 18

Prophase

Answer 18

In prophase we lose the nuclear membrane and the nucleus goes away, the nucleus in degraded. DNA is condensed to a tightly packaged form, The mitotic spindle finishes forming. We lose the nucleus because we phosphorylated the Lamins.

Question 19

Metaphase

Answer 19

The DNA lining up in the Middle/ Equator of the cell.

Question 20

Anaphase -

Answer 20

The separation of DNA HALF GOES TO ONE POLE HALF TO THE OTHER - Chromatids are separated here.

Question 21

Telophase

Answer 21

The nuclear membrane reforms (The return of the Nucleus)
• The DNA decondenses in size ( It goes back to its regular packaging pattern its looser structure we can no longer see DNA)
• Cytokinesis is starting here at Telophase (Cytokinesis when the cell splits into two) we know this is occurring because we could see the establishment of the clevage furrow.

Question 22

Prophase l -

Answer 22

• Homologous Chromosomes pair up

* The crossing over of the non sister chromatids AKA Synapsis (This happens when we produce sex cells)

Question 23

Anaphase l

Answer 23

Separates the Homologous Chromosomes (Tetrads