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Katena32 [7]
2 years ago
8

The Gibbs free energy change of a reaction can be calculated using the equation ΔG = ΔH – TΔS. A biochemical reaction that can p

rovide energy for cellular metabolism would be one in which: Choose one: A. ΔG was negative. B. all terms on the right are negative. C. ΔG was positive. D. all terms on the right are positive.
Biology
1 answer:
Katena32 [7]2 years ago
4 0

Answer:

a. ΔG was negative.

Explanation:

The answer is a. ΔG was negative because, for a biochemical reaction to occur and provide energy for cellular metabolism, the Gibbs free energy ΔG = ΔH - TΔS < 0 , for spontaneity. If all terms on the right were to be negative, then ΔG = -ΔH - (-TΔS) = TΔS - ΔH and would only be less than zero if the absolute value of ΔH > absolute value of TΔS. If ΔG was positive as in C, the reaction would not be spontaneous and energy would have to be put into the biochemical reaction for it to occur. If all terms on the right were positive, then, ΔG = ΔH - TΔS < 0 when TΔS > ΔH , else ΔG > 0 and energy would have to be put into the biochemical reaction for it to occur, so its not spontaneous.    

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In your own words, give a brief overview of the process of photosynthesis. Include where each phase place within a plant cell.
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Answer:

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The light-dependent reactions occur on the membrane of the thylakoid and also involve shuttling electrons across different complexes (photosystem II and photosystem I), eventually causing ATP to be created with a proton gradient.

The light-independent reactions/Calvin cycle occur in the stroma of the chloroplast and also involve shuffling carbons around. Carbon dioxide is processed in three stages, and glucose is made from 6 CO2.

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2 years ago
The main role of the axial skeleton is to help us manipulate our environment. True or false?
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Answer:

I think the answer is false

3 0
3 years ago
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Round pea allele R is dominant to wrinkled pea allele r, while yellow pea allele Y is dominant to green pea allele y. Homozygous
allsm [11]

Answer:

RrYy (F1 generation)

Explanation:

This is a typical dihybrid cross involving two genes in the pea plant; one coding for seed colour and the other for seed shape.

According to Mendel's law of dominance, an allele is capable of masking another allele in a gene, the allele that masks or is expressed is called the DOMINANT allele while the allele being masked is called RECESSIVE allele.

Homozygosity of a gene refers to it having the same type of alleles while heterozygosity refers to having different alleles.

In this example, allele for Round (R) and Yellow (Y) pea is dominant over the allele for Wrinkled (r) and green pea respectively.

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4 0
3 years ago
A certain strain of bacteria divides every 2 hours. If a colony is started with 80 bacteria, then the time t (in hours) required
Mamont248 [21]

Answer:

The time required for the colony to grow two million bacteria is 29.22.

Explanation:

Time required for the colony to grow can be calculated by the following equation:

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Here t is time, N = 2 million  (require bacteria population).

t=2log(2,000,000/80)/log2

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3 years ago
Television sets are able to recreate the entire visible spectrum by additively mixing three primary colors. This process is simi
Nostrana [21]

Answer:

Trichromatic vision.

Explanation:

Trichromatic theory may be defined as the theory that posses of three independent channels that are used to convey the color information. They are derived from the three different cone cells.

The television also produce three primary colors by the use of trichromatic theory. The receptor or these colors in human are greater than three as different colors have different intensity of light.  The opsin protein plays an important role in the trichromatic vision.

Thus, the answer is trichromatic vision.

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3 years ago
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