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Veronika [31]
3 years ago
10

In Photosystem II, an excited electron helps pump hydrogen into the thylakoid. What are the hydrogen ions used for? Explain how

this process converts forms of energy.
Biology
1 answer:
Darya [45]3 years ago
5 0

After the special pair gives up its electron, it has a positive charge and needs a new electron. This electron is provided through the splitting of water molecules, a process carried out by a portion of PSII called the manganese center^9 . The positively charged P680 can pull electrons off of water (which doesn't give them up easily) because it's extremely "electron-hungry."

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What are the punnet squares really used for and do they work 
podryga [215]
Punnett squares are used to find out the possible genotypes of the next generation after a cross and thus find the phenotype too according to the predicted genotypes.

For example, parents with genotypes of Rr and rr cross together, we can use the punnett square to list out the possible genotypes of their children which are Rr and rr.

You can never predict the exact genotypes of the next child but you can find out the possibility if they carry a certain trait. All the genotypes of the child are in random but you at least know what phenotypes they'll have.
3 0
3 years ago
In mice, brown eyes (B) are dominant over blue (b). A homozygous brown-eyed male mouse mates with a blue-eyed female and they ha
bazaltina [42]
Parents: Homozygous brown-eyed (M) - B B
                                    blued-eye (F)     -  b b    [since blue (b) is recessive then                                                                                      and brown (B) is dominant then
                                                                           in order for the blue gene to
                                                                           show the you need double                                                                                              recessive or the brown
                                                                           gene absent 

Offspring:
So based on the Punnett cross then you realize that all the possible of spring carry the genotype B b and as such the phenotype brown eyes
                                                                          

8 0
3 years ago
Which of the following formed from the remains of plants and animals that died millions of year ago?
Drupady [299]
Coal from swamp plants that formed millions of years ago.
3 0
3 years ago
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What tool do we use to measure the amount of force needed to pull an object through the floor
SIZIF [17.4K]
The object we would need to measure force
is a spring scale
7 0
3 years ago
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What happens to any matter that is not used by consumers in a food chain?
Ray Of Light [21]
Kinda like a pyramid. The bottom is wide, many sources of energy (plant life) that take nutrients combine them with water use the bonding of the suns rays and convert that to matter. This matter is then consumed by animals (grazers and browsers), who in turn are fed upon by predators. With man as the top predator.

Take a few seeds from wire-grass. Wire-grass grows in many natural communities, it is eaten by rodents and birds, like Quail. Quail are eaten by snakes, who are eaten by hawks, bobcats, and raccoons.

every time the meal is transferred from one critter to the next, energy is expended in the chase (heat) and capture, and energy is always being used for the animals to survive day by day.
4 0
3 years ago
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