Dr. Burleson Test 2

1.

1 point

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

Light Reactions

Cellular Respiration

Photosynthesis

Krebbs Cycle

2.

1 point

C6H12O6 + 6O2 --> 6CO2 + 6H20 + energy

Cellular Respiration

Glycolysis

Light Reaction

Calvin Cycle

3.

1 point

Almost all of the energy in an ecosystem comes from what original source?

Energy from decomposition

Energy from carbon fixation

Energy from cellular respiration

Energy in the form of sunlight

4.

1 point

Anabolism is

totality of an organisms chemical reactions

the changing of the free energy of a system

a form of metabolism that synthesizes large macromolecules from smaller macromolecules and energy

A form of metabolism that breaks large macromolecules down into smaller molecules and energy

5.

1 point

Which of the following is not a form of energy

Kinetic

Chemical

Watts

Potential

6.

1 point

What is the first law of thermodynamics?

Energy of universe is constant, and energy cannot be created nor destroyed

The energy available in the form of hydrogen bonds in water is sufficient to power humanity

The total energy of an open system remains unchanged throughout time

exasperation of energy

7.

1 point

How can you alter the delta G of a reactions?

By adding a catalyst

By introducing an allosteric inhibitor to the reaction

the delta G of a reaction can not be altered

By adding an enzyme

8.

1 point

Lactase is an enzyme involved in the break down of lactose, at the end of one cycle of the reaction it is consumed and must be remade

True

False

9.

1 point

The Ea of a reaction cannot be changed

True

False

10.

1 point

Which of the following is used to overcome the activation energy of a reaction?

heat

competitive inhibitor

enzyme

more than one answer choice is correct

11.

1 point

How can a catalyst lower the Ea of a reaction?

covanetly bonding to the substrate

orienting substrates correctly

straining substrate bonds

providing favorable microenvironment

all of the above

12.

1 point

Which of the following do not impact enzyme activity?

pH

chemicals

DNA

tempterature

13.

1 point

what is a coenzyme?

competitive inhibitors

inorganic cofactors

noncompetivite inhibitors

organic cofactor

14.

1 point

Feedback inhibition ensures that a cell does not waste resources by synthesizing more product than is needed

True

False

15.

1 point

ATP synthase is an enzyme used in the electron transport chain, where would this enzyme likely be found?

mitochondria

nucleolus

lysosomes

nucleus

16.

1 point

In what form does energy exit an ecosystem?

heat

citrate

glucose

lactic acid

17.

1 point

Anerobic respiration does not have an electron transport chain, but rather is a process of partial degradation of sugars that occur with out oxygen, resulting in usually ethanol or lactic acid

True

False

18.

1 point

Lactic acid (or ethanol) and some energy in the form of ATP is the result of fermentation.

True

False

19.

1 point

In cellular respiration, glucose is oxidized

True

False

20.

1 point

Diatomic oxygen is reduced during cellular respiration

True

False

21.

1 point

NAD+ is a cofactor

True

False

22.

1 point

When is the first CO2 produced during cellular respiration?

During the citric acid cycyle

during the electron transport chain

during glycolysis

during recombination

23.

1 point

Chemiosmosis is the use of a water gradient to generate ATP

True

False

24.

1 point

Proton motive force is the energy stored in a hydrogen gradient across a membrane

True

False

25.

1 point

In the absence of O2, which of the following can pyruvate created during glycolysis be converted into?

lactatic acid

citrate

acetyl coA

glucose

26.

1 point

Only one molecule of glucose is consumed by an organism that is able to efficiently go through glycolysis, how many ATP are produced during this organism's Citric Acid Cycle?

3 ATP, 9 NADH, 3 FADH2

2 ATP, 6 NADH, 2 FADH2

1 ATP, 3 NADH, 1 FADH2

no atp is produced during the Citric Acid cycle, all ATP is produced during the ETC or glycloysis

27.

1 point

How many ATP are produced during glycolysis?

4

0

1

2

28.

1 point

When the electrons from NADH and FADH2 go through the ETC, what is the final compound formed?

Diatomic Oxygen

H2O

CO2

O2

29.

1 point

Glycolysis requires O2 to occur, that is why in the absence of oxygen fermentation or anerobic respiration occur

True

False

30.

1 point

2 Acetylaldehyde is the intermediate compound between pyruvate and ethanol during fermentation

True

False

31.

1 point

Lactic Acid fermentation releases 4 CO2 per pyruvate

True

False

32.

1 point

Aerobic respiration is only marginally more efficient at ATP production than fermentation

True

False

33.

1 point

Excessive amounts of citrate inhibit the ETC directly by competitively binding to the transmembrane proteins that allow NADH and FADH2 to cross into the mitochondrial matrix

True

False

34.

1 point

An autotroph can survive on an incomplete agger plate

True

False

35.

1 point

Shorter wavelengths of light have higher energy

True

False

36.

1 point

Which of the following is the main photosynthetic pigment?

chlorophyll A

Bore-aphyll

chlorophyll B

cartenoids

37.

1 point

Chlorophyll B is helpful for plants because it is a pigment that helps absorb light from areas of the visual spectrum that chlorphyll A does not absorb as efficiently

True

False

38.

1 point

Which of the following is a phase of the Calvin cycle?

Fixation

Reduction

Regeneration

all of the above

39.

1 point

Which of the following can cause photorespiration to occur?

Opening the stomata, causing build up of O2 and lack of access to CO2

Closing of the stomata, causing a buildup of O2 and a lack of access to CO2

Opening of the stomata, causing a excess access to atmospheric CO2, but little access to O2

closing the stomata, causing CO2 buildup and little access to O2

40.

1 point

What is the carbon product of photosynthesis in C3 plants?

Glucose

Pyruvate

G3P

G4p

41.

1 point

CAM plants seperate light reactions and Calvin cycle spatially

True

False

42.

1 point

C4 plants seperate light and dark reactions spatially

True

False

43.

1 point

Where do C4 plants incorporate CO2 into 4 carbon compounds?

Chloroplasts

Cytoplasm

mesophyll cell

Vacuoles

44.

1 point

Which of the following is a type of cell signalling?

Autocrine

Gap Junction Signalling

Paracrine

Endocrine

all of the above