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Nata [24]
2 years ago
10

Which of the following best explains how the light reactions of photosynthesis generate ATP?

Biology
1 answer:
frutty [35]2 years ago
6 0

Answer:

B. A proton gradient drives the formation of ATP from ADP and inorganic phosphate via ATP synthase.

Explanation:

Light reaction of photosynthesis includes the splitting of water in the presence of sunlight and electron transfer from PSII to PSI via an electron transport system. During the transfer of electron through cytochrome of the electron transport system, the proton concentration gradient is generated across thylakoids. The proton concentration gradient is harvested to drive ADP phosphorylation by the catalytic site of ATP synthase accompanied by downhill movement protons through its proton channels.

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Which circumstances could be sources of error within the experiment? Check all that apply
gizmo_the_mogwai [7]

Answer:

A, B, C, E

Explanation:

A. not fully submerging the object when doing the fluid displacement procedure.

B. water that is left behind in the collection container when it is transferred for measurement.

C. water that soaks into the materials of the balls, affecting the mass in repeated trials.

E. water in the bucket, approximated to the closest 10 mL due to surface tension at the top of the bucket.

6 0
2 years ago
Read 2 more answers
Which term describes the phenomenon that occurs when the expression of one gene pair masks the expression of another gene pair?
kotegsom [21]
It's called complete dominance of the dominant gene when it totally masks expression by the recessive gene.
4 0
2 years ago
Systematists have used a wide variety of traits to reconstruct the phylogenies of particular groups of organisms. Which one of t
Effectus [21]

Answer:

5. all of the above traits combined

Explanation:

Phylogeny has to do with the study of evolutionary relationships among living organisms based on the premise of the theory of organic evolution that states that all living organisms came from a common ancestor.

Phylogeny incorporates molecular, morphological, anatomical, biochemical and behavioural traits in order to arrive at a phylogenetic tree that represents ancestral lineages.

<em>Hence, the correct option is option 5. </em>

5 0
2 years ago
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You observed many sand hill cranes on your walk. Two sand hill cranes flapped their wings and hopped up and down when you walked
Anarel [89]

Answer:

This question lacks options, the options are:

A) symbiosis

B) ecosystem

C) community

D) population

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The answer is D) Population

Explanation:

Living organisms in an ecosystem are usually found in numbers living together in a given area. This is termed POPULATION in ecology. A population refers to the group of living organisms that belongs to the same species living together in the same habitat and have the ability to interbreed i.e. mate and reproduce with one another.

This is the case in this question where many sandhill cranes (large flying birds) were observed in a particular area, which represented their habitat. Asides the group of sandhill cranes living together, they were also observed to be interbreeding. This was evident in the observation of two sandhill cranes hopping up and down around their bright orange baby. This shows that members of the population are capable of mating and reproducing fertile offsprings.

This observation completes what a POPULATION is all about, hence, a population was observed.

5 0
2 years ago
Which of the following statements about algorithms is false?
garik1379 [7]
I think that it’s c but I could be wrong!
4 0
2 years ago
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