Where does the CO2 produced during the Krebs Cycle come from

Answers

Answer 1

Answer:

Uhhh the answer is in the explanation

Explanation:

The citric acid cycle, shown in —also known as the tricarboxylic acid cycle (TCA cycle) or the Krebs cycle—is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate—derived from carbohydrates, fats, and proteins—into carbon dioxide.


Related Questions

I need help for Monday pls

Answers

Answer:

Explanation:

1.foods

2. lemons or any of acidic fruit

3.washing powder

4. arrhenius Acid

5. hydrogen

6. alkali/ base

7. water?

8. alkali

9. hydroxide

unsure about the rest sorry

Answer:

((1))●many __foods__

●__vegetables__

●such as __detergents__

((2))

acids

a) H

H2O

b) hydronium

((3))

bases

a)Hydroxide

Water

separate

b)water

hydrogen

hydroxide

B

1) pH

inverse

a) acidic

b) basic

........ BRAINLIST.....:)

find the answers for the questions given below
biology-reaching the age of adolsence

Answers

Answer:

Hopefully this helps!!

Explanation:

bcaabccbcadbccaDiabetesCortisolMenarcheInfertilityDNAEndocrine28ExocrineThyroidPituitary

What are the REACTANTS in
photosynthesis?

A. Sunlight and Water
B.Glucose and Oxygen
C.Carbon Dioxide and Water

Answers

Answer: A

Explanation: The reactants of photosynthesis are everything to the left of the "———>" arrow, thus the reactants of photosynthesis are carbon dioxide, water, and sunlight energy. The products of photosynthesis are everything to the right of the "———>" arrow, thus the products of photosynthesis are glucose and oxygen.

Carbon Dioxide, water, and sunlight.

The reactants of photosynthesis are everything to the left of the "———>" arrow, thus the reactants of photosynthesis are carbon dioxide, water, and sunlight energy. The products of photosynthesis are everything to the right of the "———>" arrow, thus the products of photosynthesis are glucose and oxygen.

The levels of organization within an organism are atom, molecule, __________, tissue, __________, and organ system.

atomic number; element
cell; organ
compound; kidney
nucleus; membrane
Question 2(Multiple Choice Worth 4 points)
(04.01 LC)

Which is the smallest unit of life?

Organs
Molecules
Cells
Atoms
Question 3(Multiple Choice Worth 4 points)
(04.01 LC)

A substance that cannot be broken down into a simpler substance is called an __________.

animal
organ system
element
organism
Question 4(Multiple Choice Worth 4 points)
(04.01 LC)

Which is an example of a molecule?

Muscle tissue
Protein
Stomach
Unicellular organism
Question 5 (True/False Worth 4 points)
(04.01 LC)

Nonliving things have cells.

True
False
Question 6(Multiple Choice Worth 4 points)
(04.01 LC)

Which level of organization is formed when a group of organs work together to perform complex functions?

Molecule
Organ
Organ system
Tissue
Note: please answer correctly please do not send file link those do not work for me

Answers

Answer:

1. Cell; organ

2. Cells

3. Element

4. Protein

5. False

6. Organ system

Explanation:

transcription starts with ____ and makes ____ with the aid of ____________

Answers

1. Initiation
2. RNA molecule
3. Sorry do not know the correct answer

Answer:

transcription starts with Initiation/the nucleus/DNA and makes mRNA with the aid of Polymerase RNA enzyme

Explanation:

Transcription is the process in protein synthesis consisting of a starting process of initiation where the nucleus hosts the creation of an mRNA sending the coding message to the ribosome, but the starting process is the Polymerase binding to a site on the DNA strand, then it makes the mRNA through the other steps in transcription.

Match each pollutant with its source.

Match Term Definition
Carbon dioxide A) made when it reacts to oxygen
Nitrogen oxides B) released when burning coal or gas
Volatile organic compounds C) emissions from oil refineries
Sulfur oxides D) cleaning, disinfecting, and degreasing products

Answers

The pollutants and their respective sources include the following

Carbon dioxide - This is released when burning coal or gas. The burning of

fossil fuels such as coal or gas releases the greenhouse called

carbondioxide and is responsible for increase in infrared absorption to the

earth.

Nitrogen oxide:  This is made when nitrogen reacts with oxygen under the

appropriate conditions.

Sulfur oxides : This is contained in emissions from oil refineries. This is

because crude oil which is the major raw material in refineries have large

amounts of sulphur in them which reacts with oxygen to form sulfur oxides.

Volatile organic compounds: These are contained in cleaning, disinfecting,

and degreasing products.

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Mutations cause changes in _____.

Answers

Answer:

mutation cause changes in genetic material

What is the correct abbreviation for pan troglodytes (chimpanzee)?.

Answers

Answer:

The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.

Explanation:

Hope this helps you :)

A father and mother with free earlobes have 8 kids. All 8 kids randomly end up with free earlobes. Which genotype combinations would not be possible for the parents? Free earlobes (E) is dominant to attached earlobes (e).

A.
Ee x ee
B.
EE x ee
C.
Ee x Ee
D.
EE x Ee

Answers

Answer:

I think the answer would be D

D = EE x Ee

Explanation:

Draw the basic structure of a nucleotide with its three parts.

Answers

Answer: This picture has the answer

Explanation:

The nucleotides which are found in the DNA molecule are made up of nucleoside moieties and phosphate molecule. These are of five types which include adenosine, guanosine, uracil, thymine, and cytosine.

What is a nucleotide?

Nucleotides are the organic molecules which consist of a nucleoside and a phosphate moiety. The nucleotide molecules serve as the monomeric units of the nucleic acid polymers such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are the essential biomolecules within all life forms on the Earth.

A nucleotide is one of the main structural components, or the building blocks, of DNA and RNA molecules. A nucleotide consists of a base which has one of four nitrogenous base which could be purine and pyrimidine such as adenine, thymine, guanine, and cytosine plus a molecule of sugar and one molecule of phosphoric acid.

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what parts of a cell are most likely involved with inherited traits?

Answers

Chromosomes are most likely involved with inherited traits.

What are Chromosomes?

A chromosome is defined as the long DNA molecule which contains part or all of an organism's genetic material. Most chromosomes consist of very long thin DNA fibers coated with packaging proteins where the most important of these proteins in eukaryotic cells are histones.

These structures are found in the nucleus of cells which contain long pieces of DNA. DNA is the material that holds genes and is the building block of the human body.

Chromosomes also contain proteins which help the DNA stay in the proper shape.

Thus, Chromosomes are most likely involved with inherited traits.

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How is humus formed?Explain.​

Answers

Answer:

Humus is formed when organic material (such as leaves, dead animals etc.) is degraded by a combination of fungi, bacteria, microbes and other animals (earthworms for example) that reside in the soil.

Explanation:

Answer:

Hey mate....

Explanation:

This is ur answer...

Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. The thick brown or black substance that remains after most of the organic litter has decomposed is called humus.

Hope it helps!

Brainliest pls!

Follow me! ♤

What substances in food provide organisms with energy?

Answers

Answer:

A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.

Explanation:

Answer: Carbohydrates

Explanation: Because of the starches and sugars in food, that gives your body‘s main sources of energy.

why not test for pathogens like salmonella directly rather than use an indicator organism such as a coliform?

Answers

Indicator organisms are organisms that are utilized to detect the presence of another organisms that cannot be easily identified.

We do not test for pathogens like salmonella directly but use an indicator organism like coliform because these pathogens are not easily isolated and they are much harder to identify.

Pathogens like salmonella are not tested for directly because they are much lower in numbers when found in wastes or waterbodies and to identify them directly is expensive.

Also testing directly for these micro-organisms is very expensive and non-viable. So it is better to use indicator organisms to detect their presence.

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Which statement explains why ammonites are a good example of an index fossil?

Answers

Answer:

Ammonites existed only in the oceans.

Explanation:

Index fossils serve as a relative dating marker for geologic time periods and the rocks formed at those times. The fossils are of species that lived for only a short while, though that could be millions of years, and were widespread on the Earth. Ammonites are good index fossils for several reasons. First, they are easily identified by their spiral shells.

The statement explains why ammonites are a good example of an index fossil

Ammonites existed only in the oceans.

What is an Index fossil?

Index fossil are plants and animals which have been preserved in rock

surfaces over a long period of time and are usually characteristic of a

particular geographical location.

Examples of Index fossils include:

Ammonites Brachiopods, Graptolites NanofossilsTrilobites

Ammonites are animal fossils which are characteristic of the marine

environment.

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By 12 weeks, the uterus is just ____________ to the level of the ____________ and is about the size and shape of a large grapefruit. As the uterus expands, it impinges on the space occupied by the ____________ .

Answers

Answer: 1. superior 2. pubic symphysis 3. urinary bladder

Explanation:

Given our understanding of the human anatomy, we can confirm that by 12 weeks, the uterus is just superior to the level of the pubic symphysis and is about the size and shape of a large grapefruit. As the uterus expands, it impinges on the space occupied by the bladder.

As the question tells us once the spaces are filled in, the uterus, which holds the fetus during development, expands as the fetus grows in size. This expansion causes it to extend to the spaces superior to the pubic symphysis and the space occupied by the bladder.

The expansion of the uterus into the space occupied by the bladder causes this organ to have very limited space to expand, thus greatly limiting the amount of urine it can hold which causes more frequent trips to the bathroom.

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How many pairs of spinal nerves are there in the human body?

Answers

Answer:

31 pairs is correct

Explanation:

In the human body there are 31 pairs of spinal nerves, one on each side of the vertebral column.

Environmental factors typically activate genes in a cell by causing the cell to --
A.produce identical daughter cells through mitosis
B.form haploid gamete cells through meiosis
C.fuse with another cell to increase the size of its genome
D.transcribe specific DNA segments to mRNA for translation

Answers

Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation.

This interaction is an example of environmental factors affecting genetic expression. In these situations, the environment causes specific segments of DNA to be expressed, meaning they are transcribed to mRNA and subsequently used to form proteins.

Meanwhile, other parts of the genome remain or are forced to be silent. This can be a result of mutations or simple biochemical reactions between the environment and the genome.

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Answer:

Transcribe DNA to RNA

A process in which cells surround and engulf substances that are too big to pass
through the membrane is known as...
membrane pump
endocytosis
facilitated diffusion
exocytosis

Answers

Answer:

including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid. Finally, receptor-mediated endocytosis is a targeted version of endocytosis where receptor proteins in the plasma membrane ensure only specific, targeted substances are brought into the cell.

Explanation:

so the answer is exocytosis

Answer:

Endocytosis

Explanation:

· Water participates directly in the light reactions of photosynthesis by
a. donating electrons to NADPH.
c. accepting electrons from the electron
b. donating electrons to photosystem II. transport chains.
d. accepting electrons from ADP.

Answers

Water participates directly in the light reactions of photosynthesis by….
C. Accepting electrons from the electron

Can you please help me with this?

Answers

The aquifer must be permeable and porous to allow the water to flow through.

PLEASEEE HELPPPP!!!! PLSSSS!!!!
All of the following can increase blood pressure except for

D. parasympathetic nervous stimulaton

B. sympathetic nervous stimulaton

A. reduction in arteriole diameter

C. angiotensin II

Answers

Answer:

D!

Explanation:

Carbon cycle pls help me

Answers

carbon dioxide Coronavirus

What is a group of similar cells that perform the same function?

A. a tissue

B. an organelle

C. an organ system

D. a multicellular organism

Answers

Answer:

The answer is A. a tissue

Explanation:

Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body.

how are the functions of the endocrine system and nervous system similar?

Answers

Answer:

It's similar to the nervous system in that it plays a vital role in controlling and regulating many of the body's functions. However, while the nervous system uses nerve impulses and neurotransmitters for communication, the endocrine system uses chemical messengers called hormones.

Based on this diagram label the positive and negative sides of the DNA fingerprint with a + and – sign.

Answers

Answer:

?

Explanation:

What is a DNA fingerprint?

DNA fingerprinting is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA.

Background

Almost every cell? in our body contains our DNA?.  

On average, about 99.9 per cent of the DNA between two humans is the same.  

The remaining percentage is what makes us unique (unless you are an identical twin!).  

Although this might sound like a small amount, it means that there are around three million base pairs? that are different between two people. These differences can be compared and used to help distinguish you from someone else.  

Minisatellites are short sequences (10-60 base pairs long) of repetitive DNA that show greater variation? from one person to the next than other parts of the genome?. This variation is exhibited in the number of repeated units or ‘stutters’ in the minisatellite sequence.

The first minisatellite was discovered in 1980.  

DNA fingerprinting

DNA fingerprinting was invented in 1984 by Professor Sir Alec Jeffreys after he realised you could detect variations in human DNA, in the form of these minisatellites.  

DNA fingerprinting is a technique that simultaneously detects lots of minisatellites in the genome to produce a pattern unique to an individual. This is a DNA fingerprint.

The probability of having two people with the same DNA fingerprint that are not identical twins is very small.  

Just like your actual fingerprint, your DNA fingerprint is something you are born with, it is unique to you.

How was the first DNA fingerprint produced?

The first step of DNA fingerprinting was to extract DNA from a sample of human material, usually blood.

Molecular ‘scissors’, called restriction enzymes?, were used to cut the DNA. This resulted in thousands of pieces of DNA with a variety of different lengths.

These pieces of DNA were then separated according to size by a process called gel electrophoresis?:

The DNA was loaded into wells at one end of a porous gel, which acted a bit like a sieve.  

An electric current was applied which pulled the negatively-charged DNA through the gel.

The shorter pieces of DNA moved through the gel easiest and therefore fastest. It is more difficult for the longer pieces of DNA to move through the gel so they travelled slower.

Body size in mice (length from nose to base of tail) is controlled in part by genetics. The following data shows the number of mice grouped by lengths:

Length Group Number of Mice
Very small (4-5 cm) 2
Small (5-7 cm) 6
Average (7-10 cm) 15
Large (10-12 cm) 7
Very large (12-13 cm) 1
Based on this data and your knowledge of inheritance patterns, identify the inheritance pattern that this trait follows in mice.

(1 point)

complete dominance

polygenic

incomplete dominance

pleiotropic

Answers

Answer:

polygenic!

Explanation:

Based on this data and your knowledge of inheritance patterns, identify the inheritance pattern that this trait follows in mice is polygenic.

What is Polygenic inheritance?

Polygenic inheritance occurs when one character is controlled by two or more genes.

Often the genes are large in quantity but small in effect. Examples of human polygenic inheritance are height, skin colour, eye colour and weight.

Thus, option "B" is correct.

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What type of molecule controls photosynthesis

Answers

Answer:

Chloroplasts, I believe

Explanation:

1. Which structure do Urochordates lack as adults?
a) nerve cords
b) gills
c) blood vessels
d) vertebrae

Answers

(A) nerve cords, because adults lack a notochord (a dorsal hollow nerve cord).

Answer:

vertebrae

Explanation:

did the quiz got it right

Which of the following is a sign of illness in a dog?

Answers

The symptoms a dog may experience when ill is increase in sleeping habits, drool, lick their lips, and swallow excessively, excessive panting or labored breathing, dry or itchy skin, sores, lumps, or shaking of the head.
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