All categories

3 years ago

Put the protein digestion steps in order of their occurrence during the digestive process.

2 answers:

6 0

Protein digestion occurs in various steps. Protein is made up of polypeptides so the peptide linkage between them has to be broken down first. The protein is then converted into peptides. Peptides are further broken down to amino acid which acts as the simplest molecule for absorption.

Further explanation:

Protein is a biomolecule which consists of amino acids. The amino acids are linked together through the peptide linkage. It is the complex molecule which is broken down into smaller molecules during the process of digestion.

Most of the protein digestion takes place in stomach. In stomach, pepsin produced by stomach chief cells acts on protein and converts it into peptides. Various proteases are involved in digestion of different types of proteins.

Trypsin, elastase chymotrypsin and carboxypeptidase produced by pancreas is released into duodenum where they acts on protein and peptides and converts them into peptides and amino acids, respectively.

Aminopeptidase and dipeptidase present at the surface of intestine converts peptides into amino acids.

The proteins coverted into amino acids are then absorbed by small intestine through the help of microvilli. The microvilli provide good surface area for the absorption to occur in the small intestine.

Learn more:

1. Learn more about protein structure brainly.com/question/1420458

2. Learn more about protein locations brainly.com/question/5923583

3. Learn more about amino acids brainly.com/question/5050077

Answer Detail:

Grade: Middle school

Subject: Biology

Chapter: Digestion

Keywords:

Proteins, biomolecule, amino acids, peptide, digestion, pepsin, proteases, trypsin, elastase chymotrypsin, carboxypeptidase, pancreas, aminopeptidase, dipeptidase.

Ulleksa [173]3 years ago

3 0

Protein digestion is a process of reducing the dietary protein into a pool of amino acids in the gastrointestinal tracts. These amino acids are then absorbed and transported to cells where they will mix and form variety of proteins the body needs. However, the process of digestion takes place in the mouth and ends in the small intestine with the help of enzymes and digestive juices.

Steps

· Mouth: chewing of protein rich food which increase the surface area of the food particles and aid the process of digestion.

· Stomach: the acid in the stomach denature and unfold the protein rich foods in other for digestive enzymes to act on the protein. This digestive enzyme digests the protein into smaller molecules called peptides.

· Small intestine: In the small intestine, more protein- digesting enzymes that originate from pancreas and cells lining in the stomach work on the peptides and break them down into smaller peptides and sniped off the amino acid one by one.

You might be interested in

How is colorblindness inherited? Explain

jeyben [28]

Answer:

An inherited trait is one that is manifested since birth, in simple terms, you are born with it. In most cases, it depends on DNA, or is passed down from a parent. Most colourblind people have been since birth, and therefore it is inherited.

5 0

3 years ago

For which of the following groups would the biological definition of species be useful? For which of the following groups would

Lesechka [4]

Answer:

B) oaks and other sexually reproducing, extant (currently living) trees

Explanation:

The biological species concept defines the species on the basis of their reproductive isolation. It states that when individuals are able to interbreed to produce fertile and viable progeny, they belong to the same species. The members of different biological species cannot interbreed. If they interbreed, either pre-zygotic or post-zygotic isolation mechanisms do not allow the production of fertile progeny.

Therefore, the biological species concept can be applied to the organisms that are able to reproduce sexually. The asexually reproducing organisms would not exhibit any reproductive isolation which is a key criterion to group organisms under different species. Among the given examples, biological species concept can be applied to the sexually reproducing extant trees such as oak.

Since we cannot deduce the reproductive isolation in sexually reproducing extinct species, the concept is not useful for dinosaurs which are extinct now.

8 0

3 years ago

Which description of synapses is not correct? which description of synapses is not correct? second messengers can activate gene

LiRa [457]

The incorrect among the choices is "direct signaling involves the activation of g proteins"

This is incorrect because direct signaling does not involve the activation of g proteins rather it involves the activation of ion channels resulting to either an excitation reaction (depolarization of the membrane) or an inhibition reaction (hyperpolarization of the membrane); and this will ultimately affect the action of the organ the nerve is innervating.

8 0

3 years ago

Read 2 more answers

A bond formed by the electrical attraction between two oppositely charged ions is a(n)_____. covalent bond ionic bond hydrogen b

katrin [286]

Ionic Bond would be the answer.

5 0

3 years ago

Read 2 more answers

Which of these events is caused by the stapes pushing against membrane covering the oval window?A The pressure change causes the

Nezavi [6.7K]

Answer:

The correct answer is option C "The pressure change causes the organ of Corti to vibrate vertically".

Explanation:

The organ of Corti is an important structure for auditory perception that acts as a receptor organ for hearing. The organ of Corti is located in the mammalian cochlea and it allows for the transduction of auditory signals into nerve impulses according to the vibrations that are received from external sources. If the receiving sounds comes from the stapes pushing against membrane covering the oval window, the pressure change will causes the organ of Corti to vibrate vertically. Stimulus from membrane covering the oval window are sent to the organ of Corti, which responds by vibrating vertically.

7 0

3 years ago