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3 years ago

In chemiosmotic phosphorylation, what is the most direct source of energy that is used to convert adp + pi to atp?

1 answer:

8 0

An ion (hydrogen ions, H⁺) gradient has potential energy which can be used for making ATP. Because of the proton gradient, H⁺ will diffuse from an area with higher proton concentration to an area with lower proton concentration. ATP synthase is the enzyme which allows protons to pass through the membrane and uses the free energy difference to convert ADP into ATP.

The proton gradient is made by electron transport chain which pumps H⁺.

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1. The world has many different biomes. A biome is an area that can be described by its weather or climate. What type of biome d

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Answer:

different type of biome

Explanation:

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2 years ago

A batch of food contaminated with botulism exotoxin, consumed at a family reunion by most of the members of a family, would be a

Cerrena [4.2K]

Answer: Point source

Explanation:

An exotoxin is a toxic substance secreted by bacteria. The botulism exotoxin is the exotoxin secretes by bacterial strain named as Clostridium botulinum.

Point source outbreak is a condition in which people are exposed to the same source of infection from a pathogen. This may occur due to the consumption of a single meal which is being infected by the pathogen. This may lead to incidences of food poisoning, disease and even mass death.

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2 years ago

Please help. thank you.

Amiraneli [1.4K]

Hey there!

Your question states: Explain why cells are so small, considering the relationship between surface area and volume for objects of different sizes but similar shapes.

Cell's are small because the size of the other surface area's and also there volume would obviously be bigger than the cell it self. So, they are basically bigger based on that it is the most efficient at their size. Cell's can not be big and there on some one's hat, that would be very weird. This would be why cell's are the size that they are.

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2 years ago

The ABO blood group assorts independently of the Rhesus (Rh) blood group and the MN blood group. Three alleles, IA , IB , and i,

Eva8 [605]

Answer:

Part 1:

The mother’s genotype is ii, rr, MN

The father’s genotype is IAIA/IAi, Rr, MM

Part 2:

Approximately 1/32 (3.125%) of children can be expected to have the stated blood types.

Explanation:

Part 1:

The mother has blood types 0, Rh- and MN. Therefore, her genotype has to be ii, rr, MN.

The father has ABO type A. His ABO genotype may therefore be either IAIA or IAi, as both are compatible with type A offspring with a type 0 mother. His Rh genotype must be rr, since his Rh- child necessarily has to have inherited one r allele from each parent. Finally, his MN genotype has to be MM since both alleles are codominant.

Part 2:

Using the given data, we build the following Punnett chart:

IA R N IA r N i R N i r N

IA R M

IA R N

IA r M

IA r N

IB R M

IB R N

IB r M X

IB r N

Note that, of all 32 possible combinations, only a single one of them (marked with “X” produces a genotype which matches the desired blood type, as follows:

genotype: IBi, rr, MN

blood type: B, Rh-, MN

3 0

3 years ago

A scientist claims that he has protected animal test subjects from a newly mutated virus using an experimental vaccine. The expe

Oliga [24]

Answer:

A. They were part of the control group

Explanation:

In a scientific experiment, the CONTROL GROUP as opposed to the experimental group is the group that does not receive the experimental treatment. This acts as a standard for comparison.

In this question, the EXPERIMENTAL VACCINE is the experimental treatment or independent variable that was added. The five animal test subjects that was injected with this vaccine are called the EXPERIMENTAL GROUP while the other five test subjects that were rather injected with a PLACEBO are called CONTROL GROUPS.

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2 years ago