What role does oxygen play in the electron transport chain?

Answers

Answer 1

Answer: It is the final electron acceptor

it's high electronegativity is critical to pull hard on electrons to keep them flowing

It also accepts protons to form water

Explanation:


Related Questions

I need help ASAP
Match the following definitions with the correct terms:
1. BB or Bb
2. purple-flower or white flower
3. Bb
4. Used to predict the possible genotypes and phenotypes from a genetic cross

Options to choose from:
- Genotype
- Heterozygous
- Phenotype
- Punnett square

Answers

okay i believe 1. BB or Bb is: genotype
2. purple or white flower is: phenotype
3. Bb is: Heterozygous
4. Used to predict possible genotypes and phenotypes from a genetic cross is: punnett square

ill give brainliest or wtv its called

Answers

Answer:

hi there!!

Explanation:

It is gaining water because it is growing.

Help! Pleaseeeee!!!!

Answers

i think it’s living things

How many protons would the element with the atomic number 10 contain?

Answers

Answer: 10

Explanation:

if each of tree has 163 species of beetles that are found only on that type of tree but no others, how many species of beetles are there in tropical trees?

Answers

Answer:

226 is your answer pls mark brainlest

A farmer grows several crops on a farm that has mostly shallow, sandy soil, meaning they have
a low water storage capacity and a high infiltration rate. Which of the following irrigation
methods would be the best suited for this farm?
Select one:
O a. Drip irrigation
O b. Surface irrigation
O c. Flood irrigation
O d. Furrow irrigation

Answers

..............C...............

For a sandy soil farmer should use drip irrigation method over surface irrigation.

Sandy soils have a low water storage capacity and a high infiltration rate.  Therefore they need frequent but small irrigation methods, drip irrigation is most suitable method than surface irrigation.

In other irrigation methods such as Surface irrigation, Flood irrigation, Furrow irrigation water is discharged in quite large amounts but the soil lost it due to the high infiltration rate.

Therefore, for a sandy soil farmer should use drip irrigation method over surface irrigation.

To know more about Drip irrigation,

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20 POINTS!!

Which amino acid corresponds to the mRNA base sequence cytosine-
cytosine-uracil?

A. Phe
B. Ser
C. Pro
D. Leu

Answer it right plz

Answers

I think it’s B: Ser

Igneous rocks form when magma?

Answers

Answer:

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth.

Answer:

No metamorphic is Magma & Sedimentary is from sand, Igneous is solid rock

Explanation:

Which line represents a reaction with an enzyme? (A or B)

Answers

Answer:

b

Explanation:

Answer:

B

Explanation:

Line b is closer to the enzyme, and that is making it closer to the reactants and the products. the course of reactants is going right, and the top line is going left, so there fore it is the bottom line, or line b.

A gene consists of which of the following?

1) A sequence of amino acids that create a specific protein.

2) A sequence of tRNA that brings the correct amino acid to the ribosome.

3) A sequence of bases of mRNA that code for a specific protein.

4) A sequence of bases on DNA that code for a specific protein.

Answers

Answer:

answer is part (4)

Explanation:

A sequence of bases on DNA that code for a specific protein

4) A sequence of bases on DNA that code for a specific protein.

Gene:A gene is the basic physical and functional unit of heredity.Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. Alleles are forms of the same gene with small differences in their sequence of DNA bases.Every person has two copies of each gene, one inherited from each parent.

Thus, option 4 is correct.

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What does it mean for a trait to be dominant?

A.That it will be hidden by the recessive trait and not show up in the offspring.

B.That it will be the allele that will be shown in the offspring.​

Answers

Answer:

B

Explanation:

Answer:

B. That it will be the allele that will be shown in the offspring

Explanation:

If something is dominant, that means it's stronger or more assertive. Think of an alpha wolf. It is dominant and is more assertive over its pack. The same is true for alleles (in most cases)

You accidentally cut yourself working on an engineering project, and soon the cut begins to heal.
Asexual reproduction
Sexual reproduction

Answers

Asexual Reproduction

In any given population, certain individuals are more able than others to adjust to environmental changes. Some of these changes are temperature, food supply, pollution, and
A.
increase in offspring.
B.
change of habitat.
C.
decrease of predators.
D.
loss of population group.

Answers

People could also adjust to the change of habitat.

Answer: B change of habitat.

plssssssss helppppppppppppppp

Answers

Answer:

D- The code of chivalry by European knights

Explanation:

Bushido (武士道, "the way of the warrior") is a moral code concerning samurai attitudes, behavior and lifestyle. It is loosely analogous to the European concept of chivalry. There are multiple Bushido types which evolved significantly through history.

S.O.H.O. was in space near ACE. What is ACE?

Answers

Answer:

SOlar Heliospheric Observatory/ACE also provides near-real-time 24/7 continuous coverage of solar wind parameters and solar energetic particle intensities (space weather) /Advanced Composition Explorer (ACE)

Explanation:

In a certain species of mammals, gray fur (G) is dominant to white fur (8) and brown eyes (B) are
dominant to blue eyes (b). An animal with white fur and blue eyes is crossed with an animal that has
gray fur and brown eyes (GGBb). What trait will appear in all of the offspring of this mating?

Answers

Gray fur (G) because one parent has GG. Even if the other parent has gg, all the offspring will have Gg and G is dominant.

Gray fur (G) trait will appear in all of the offspring of this mating.

This is because one parent has GG. Even if the other parent has gg, all the offspring will have Gg and G is dominant.

Dominant and Recessive traits:

Dominant and recessive traits exist when a trait has two different forms at the gene level.

The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.

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Where would a frameshift mutation cause the most damage?
Near the very end of the gene
Near the beginning of the gene
Near the center of the gene
All frameshift mutations are equal

Answers

Answer:

All frameshift mutations are equal

Explanation:

Frameshift mutation is a type of mutation caused by insertion or deletion of nucleotide base(s) in a genetic sequence causing that sequence to be read in a different way from what was originally planned.

The bases in the sequence of a gene is read in three's (codon), however, when one or more bases is added (insertion) or removed (deleted), the reading frame is altered causing the sequence to be read in a completely different order that can result in a protein that is non-functional.

However, FRAMESHIFT MUTATION is so potent that it affects the sequence no matter where it occurs. In other words, the effect of all frameshift mutations are equal.

32 POINTS!!

help a sister out plz

Phosphorus (P) is the element with the atomic number 15. Which of the
following correctly compares 31 and 32p, which are two isotopes of
phosphorus?

A. Both isotopes contain 15 protons.
B. 31P has 30 protons, whereas 32P has 31 protons.
c. 31P has 31 neutrons, whereas 32p has 32 neutrons.
D. Both isotopes contain 17 neutrons.

Answers

Answer: A both isotopes contain 15 protons.

Explanation:

Should everyone use
paper or plastic grocery bags?

Answers

I say both but it depends for what

What is not a following factor influencing natural selection

Answers

You forgot the following factors

what is digestion? Starting from mouth, state the various steps involved in digestion

Answers

Mouth. Food starts to move through your GI tract when you eat. When you swallow, your tongue pushes the food into your throat. A small flap of tissue, called the epiglottis, folds over your windpipe to prevent choking and the food passes into your esophagus.

Esophagus. Once you begin swallowing, the process becomes automatic. Your brain signals the muscles of the esophagus and peristalsis begins.

Lower esophageal sphincter. When food reaches the end of your esophagus, a ringlike muscle—called the lower esophageal sphincter —relaxes and lets food pass into your stomach. This sphincter usually stays closed to keep what’s in your stomach from flowing back into your esophagus.

Stomach. After food enters your stomach, the stomach muscles mix the food and liquid with digestive juices. The stomach slowly empties its contents, called chyme, into your small intestine.

Small intestine. The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream. As peristalsis continues, the waste products of the digestive process move into the large intestine.

Large intestine. Waste products from the digestive process include undigested parts of food, fluid, and older cells from the lining of your GI tract. The large intestine absorbs water and changes the waste from liquid into stool. Peristalsis helps move the stool into your rectum.

Rectum. The lower end of your large intestine, the rectum, stores stool until it pushes stool out of your anus during a bowel movement

Answer:

The gastrointestinal system starts in the mouth. In reality, as soon as you eat the first bite, digestion begins here. Chewing splits the meal into sections that are easier to eat, and saliva combines with food to start breaking down the body into a shape that you can consume and use.

Explanation:

The mechanism of digestion can be divided into various phases, such as mouth, stomach, small and large intestine.

A complicated mixture of mechanical and chemical processes are used in digestion. The mechanism includes food intake and push, mechanical or physical digestion, chemical digestion, absorption, and defeat.

PLZ HELP ITS DUE RIGHT NOW !!!

Answers

Answer:

B. The expression of the genetic code is a regulated process

When the environment changes, organisms need to ______ or ____ to survive.

Answers

Answer:

adapt & evolve

Explanation:

When the environment changes, organisms need to adapt or evolve to survive.

How organisms adapt and survive to the changing environment?

Natural selection is the process that results in this. Natural selection causes a species' nature to progressively change so that it can fit into the niche. A species can persist for a very long time before going extinct.

Environmental changes affect whether species are able to reproduce and survive, and this can result in population-level evolution. descent while being modified.

The process by which organisms adapt to their environment in order to increase their chances of surviving in that environment is known as evolutionary adaptation, or simply adaptation.

Learn more about organisms adaptation:

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Where would a frameshift mutation cause the most damage?
Near the very end of the gene
Near the beginning of the gene
Near the center of the gene
All frameshift mutations are equal

Answers

All frameshift mutations are equal

how lond does it take harry to go 0.7 miles if he can run 12 miles in 6 minutes

Answers

Answer:

Harry will take 21 seconds.

Explanation:

Speed of Harry = [tex]\frac{\text{Distance covered}}{\text{Time taken}}[/tex]

Since, Harry covers 12 miles in 6 minutes,

Then the speed of Harry = [tex]\frac{12}{6}[/tex]

                                          = 2 miles per minute

If he covers 0.7 miles then time taken by him will be,

Time taken = [tex]\frac{\text{Distance covered}}{\text{Speed}}[/tex]

                   = [tex]\frac{0.7}{2}[/tex]

                   = 0.35 minutes

                   ≈ 0.35 × 60 seconds

                   = 21 seconds

Which molecule can be classified as saturated or unsaturated? *
a) carbohydrate
b) protein
c) lipid
d) nucleic acid

Answers

Answer:be careful for anonumas1

Explanation:

1. Energy is the
O weight calculated with the gravitational force
O ability to do work
O mass in a given volume
O circumference divided by 3.14

Answers

Answer:

A is the correct answer, hope this helps

How does embryology support evolution?

Answers

Embryology proves evolution to be true because all embryonic cells look alike, no matter what the species.
Embryology establish facts evolution expected true cause all rudimentary cells alike, no matter what the variety. Embryos do not leave quickly looking like their predecessor in family, but all embryonic container retreat looking the alike. Hopes this helps!

help me plzzz asap...
will give brainliest if right

Answers

Answer:

first option for the first question and second option for the second question.

Explanation:

Please help me number 21 need ASAP ....

Answers

Answer:

Adenine, Guanine, Cytosine, and Uracil.

Explanation:

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