Question

PLEASE HELP!!!

Will Fan, Medal and Write Testimonial!

Answer 1

1.) Two chemical reactions are taking place simultaneously in an organism. For Reaction A, the value of ∆G is +325 kJ, while ∆G equals -575 kJ for Reaction B. Which of the following best compares how these reactions affect the organism?

A.) Reaction A creates equilibrium, while Reaction B displaces equilibrium.
B.) Reaction A decreases entropy, while Reaction B increases entropy.
C.) Reaction A occurs spontaneously, while Reaction B is non-spontaneous.
D.) Reaction A releases energy, while Reaction B absorbs energy.

Answer 2

b

Answer 3

I have a few more, help?

Answer 4

2.) The organization of organisms has increased in complexity throughout time. In light of this trend, which of the following is true?

A.) As organisms increase in complexity, the entropy in the surrounding universe correspondingly increases.
B.) Each organism is considered a closed system, and therefore increased organism complexity has no relationship to the laws of Thermodynamics.
C.) Organisms increase in complexity to maintain homeostasis with the decrease in entropy of the surrounding universe.
D.) The increase in organism complexity is a function of evolution, not thermodynamics.

Answer 5

@BioEpic

Answer 6

A?
or D?

Answer 7

OK, I have more!

Answer 8

@jeff123andrew Have any ideas?

Answer 9

3.) Which of the following statements is NOT true with regard to an endothermic organism exposed to cold temperatures?

A.) The organism's metabolic rate would increase.
B.) The organism would hibernate.
C.) The organism would sweat or pant.
D.) Vasoconstriction would occur at the blood vessels closest to the skin.

Answer 10

@BioEpic @jeff123andrew

Answer 11

4.) Which of the following statements is NOT true regarding aerobic and anaerobic respiration?

A.) Aerobic respiration produces more energy than anaerobic respiration.
B.) Aerobic respiration uses glucose as a reactant, and anaerobic respiration uses lactic acid as a reactant.
C.) To produce an equivalent amount of energy, anaerobic respiration requires more glucose molecules than aerobic respiration.
D.) Water is a product of aerobic respiration but not anaerobic respiration.


5.) The organization of organisms has increased in complexity throughout time. In light of this trend, which of the following is true?

A.) As organisms increase in complexity, the entropy in the surrounding universe correspondingly increases.
B.) Each organism is considered a closed system, and therefore increased organism complexity has no relationship to the laws of Thermodynamics.
C.) Organisms increase in complexity to maintain homeostasis with the decrease in entropy of the surrounding universe.
D.) The increase in organism complexity is a function of evolution, not thermodynamics.

6.) Which of the following statements is NOT true with regard to an endothermic organism exposed to cold temperatures?

A.) The organism's metabolic rate would increase.
B.) The organism would hibernate.
C.) The organism would sweat or pant.
D.) Vasoconstriction would occur at the blood vessels closest to the skin.


7.) Which of the following statements is NOT true regarding aerobic and anaerobic respiration?

A.) Aerobic respiration produces more energy than anaerobic respiration.
B.) Aerobic respiration uses glucose as a reactant, and anaerobic respiration uses lactic acid as a reactant.
C.) To produce an equivalent amount of energy, anaerobic respiration requires more glucose molecules than aerobic respiration.
D.) Water is a product of aerobic respiration but not anaerobic respiration.


8.) Both chloroplasts and mitochondria use the process of chemiosmosis to produce ATP. Which of the following explains how this mechanism differs in these two structures?

A.) Chloroplasts require electron carriers to transport high-energy molecules, while mitochondria store them in the mitochondrial matrix.
B.) Chloroplasts use photosystems as a source of electrons, while mitochondria use water molecules as a source of electrons.
C.) In chloroplasts, electrons move through an electron transport chain, while in mitochondria they undergo cyclic electron flow.
D.) In chloroplasts H+ diffuses across the thylakoid membrane, while in mitochondria H+ diffuses across the inner mitochondrial membrane.


9.) During the light reactions of photosynthesis, electrons move from photosystem II to photosystem I and fall to a lower energy level. Which of the following do you predict would happen if cells had only one photosystem?

A.) A different electron acceptor would be needed before the Calvin cycle.
B.) A proton gradient would be created across the thylakoid membrane.
C.) Electrons would not gain enough energy to enter the electron transport chain.
D.) The energy needed to synthesize ATP from ADP would not be produced.


10.) A biochemical reaction has the following values relating to energy flow:

T = 473K
∆S = 1.11 kJ/K
∆H = -704kJ

Which of the following statements is true about this reaction?

A.) The reaction is always spontaneous.
B.) The reaction is never spontaneous.
C.) The reaction is spontaneous only when ATP is coupled to it.
D.) The reaction is spontaneous only when the temperature is above 0°K.

11.) Within an organism, both spontaneous and non-spontaneous chemical reactions take place to meet the needs of the organism. Describe how an organism would be affected, in terms of free energy and entropy, if only spontaneous reactions occurred.


12.) During the process of cellular respiration, one molecule of glucose is capable of producing up to 32 molecules of ATP. Explain the mechanism by which ATP is produced by ATP synthase. Be sure your answer describes the structural features involved in this process.


Three different organisms of the same body mass were placed in a laboratory setting and exposed to a range of temperatures. Scientists measured the metabolic rate of each organism at each temperature. The results are presented in the following graphs.

Based on the graphical data, which organisms are likely ectothermic?
Organisms A and B Organisms A and C Organisms B and C Organisms A, B, and C

Answer 12

3) I think C.

Answer 13

4) B

Answer 14

Those are the last questions!

Answer 15

5) A or D? not sure

Answer 16

6) C.

Answer 17

7) B

Answer 18

8) B or D? not sure

Answer 19

I dunno the rest (mind = dead)
Too much work.
Does @KamiBug know?

Answer 20

@KendrickLamar2014 @dan815 @RainbowsxD

Answer 21

@BioEpic I do not know. :P Not a science person. Tag me for mathematics! Lol