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

Answers

Answer 1
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 2

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.


Related Questions


Responsible for the flow of
___, and other ______, and
hormones to and from.

Answers

Answer:

kidney

Explanation:

pancreas to regulate salt

A male and female Oompah have the same genotypes: blue face (ff) and big feet (Ll). Determine what they’re offspring may look like!

Answers

Answer:

They Will have Blue Face and Large feet

Explanation:

for the blue face you will get 100% Blue face

for the large feet you will 75% Large feet and 25% small feet

why might it be important to know a person's lung capacity?

Answers

Answer:

Explanation:

I would talk about how lung can help dictate someones physical condition, and the shape that  their lungs are in. (dictate VO2 max, etc.) it can also tell yo u whether someone is severely out of shape, a smoker, in very good shape, a runner, etc.

One difference between cell division in plant cells and in animal cells is that plant cells have...
A. centrioles.
B. centromeres.
C. a cell plate.
D. chromatin.

Answers

Answer

A. centrioles

higher plant cells do not have centrioles in cell division.

Calico cats are almost always female because the gene for coat color is
carried on the X chromosome. The Y chromosome in cats has no color
gene. Explain how a calico cat might be a male. *

Answers

Answer:In rare cases, a male cat can inherit two X chromosomes in addition to his Y chromosome (Klinefelter Syndrome). ... If the two X chromosomes do not carry the same allele (i.e., the cat's genotype is XBXbY), then the male will express calico coloration, just as a female would.

A_____is the orbiting of an object around another body

Answers

Answer:

revolution

...................

A revolution is the equivalent of one entire orbit around something

(ie, earth around sun/ moon around earth) and is the equivalent of one year.

Answer: A REVOLUTION is the orbiting of an object around another body.

Explanation: revolution- the orbiting of an object around another object. One complete revolution around the sun is called a year.

Pepsin is an enzyme produced in the stomach. Pepsin has an optimum pH that is very acidic, between a pH of 1.0 and 2.0. In an
experiment involving the enzyme pepsin, the pH is raised from 2 to 11. What will be the MOST LIKELY effect of this on the reaction?

Answers

Explanation:

the pepsin enzyme will not be able to work in a basic medium when ph raised from 2 to 11 it's efficiency will be affected and will not be in a condition of digesting protein .

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

When the pH is raised from 2 to 11 the most likely effect on the reaction is ;  

The rate of reaction will decrease/delayed

Given that Pepsin enzyme has an optimum pH of 1.0 to 2.0, it will perform efficiently as a catalyst in an experiment whose pH levels fall within the range of the optimum pH of Pepsin.

Pepsin enzyme accelerates the digestion of proteins therefore when the pH levels are raised above 2.0 the efficiency of Pepsin enzyme will be negatively affected and the digestion of protein will require a higher activation energy.

Hence we can conclude that When the pH is raised from 2 to 11 the most likely effect on the reaction is The rate of reaction will decrease/delayed.

Learn more : https://brainly.com/question/24420086

All existing matter and space is referred to as the _______________

Answers

Answer:

The universe is the answer

Answer:

The cosmos?

Explanation:

Name two types of pathways that help a body maintain homeostasis, and an example of each.

Answers

Answer:

Explanation:

The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure. If the water level gets too high, the urinary system produces more dilute urine (urine with a higher water content) to help eliminate the excess water.

Answer:

The receptor and afferent pathway are pathways that help the body stay n homeostasis. An example of the receptor is like temperatures in your skin. An example of Afferent pathways are sensory neutrons.

Explanation:

________Is responsible for most of the damage buildings suffer during earthquakes????

Answers

the ground shaking is the answer

The seed capsules of the Himalayan balsam plant explode when touched and can eject seeds as far as 16 feet from the parent plant. Is this a structural adaptation, behavioral adaptation, or both?

Answers

Answer:

behavioral adaptation

Explanation:

A structural adaptation is defined as the adaptation in which physical features of organisms or plants while behavioral adaptation is defined as the activities an organism or plant do to survive.

The Himalayan balsam plant is an example of behavioral adaptation because it disperse its seeds when it ripe and touched by someone, for its survival it shows it dispersal behavior and spread seeds as far as 16 feet from the parent plant. In the fear of someone can harm by touching it, the survival instinct of balsam plant shows behavioral adaptation.

Hence, the correct answer is " behavioral adaptation".

what is the relationship between the cell membrane and cystic fibrosis?

Answers

Answer:

The CFTR gene provides instructions for making a protein called the cystic fibrosis transmembrane conductance regulator. This protein functions as a channel across the membrane of cells that produce mucus, sweat, saliva, tears, and digestive enzymes.

HOPE THIS HELPS

The mass of an object multiplied be it's speed is?

Answers

Answer:

momentum

Explanation:

*
What kinds of organisms use anaerobic respiration?

Answers

Answer:

Certain prokaryotes, including some species of bacteria and Archaea, use anaerobic respiration.

Explanation:

For example, the group of Archaea called methanogens reduces carbon dioxide to methane to oxidize NADH. These microorganisms are found in soil and in the digestive tracts of ruminants, such as cows and sheep.

This serves as a quick energy source.
a. carbohydrate.
b. nucleic acid
c. lipid.
d. protein.

Answers

A. Carbohydrates.

Carbohydrates are stored as fat.

In a cross Bb x Bb (B = Blue petals and b = pink petals), how many offspring will have the genotype Bb?

Answers

Answer:

2 offspring will have the genotype Bb.  

Explanation:

Crossing the genotypes Bb and Bb results in 2, or 50% of the offspring having the genotype Bb.  In the top right box, the B on the top and the B on the side make the BB genotype.  In the top left box, B and b make the first Bb genotype.  The lower right box crosses B and b to make the second Bb genotype.  The last box in the bottom right crosses b and b, resulting in the genotype bb.  So, after crossing the genotypes written on the top and side of the punnet square, 2 of the offspring will have the Bb genotype.  (I got this by combining the letters outside the punnet square in the box where the row and column meet) .

Which of the following is most likely responsible for the fact that organic molecules no longer formed spontaneously on Earth?
A. The amount of UV radiation increased
B. The amount of oxygen in the atmosphere increased
C. Water accumulated in the oceans
D. Earth's surface temperature warmed

Answers

The answer is B. The amount of oxygen in the atmosphere increased.

Answer:

b

Explanation:

oxygen in air

and atmosphere

On the Galápagos Islands, Darwin observed tortoises with domed and saddle-shaped shells. How did Darwin’s observations of these tortoises help him form the theory of evolution by natural selection?

Answers

Helped to confirm that environmental changes cannot affect the characteristics of a species.

The four tenants of evolution by natural selection

Answers

Answer:

variation, inheritance, selection and time

Explanation:

Which sequence correctly indicates the branching pattern of the human respiratory system?
A) trachea bronchi bronchioles alveoli
B) trachea bronchioles bronchi alveoli
C) alveoli trachea bronchioles bronchi
D) alveoli bronchioles trachea bronchi

Answers

Answer:

A

Explanation:

The system including tissues and organs needed for breathing and exchanging gases is called the respiratory system. It is essential for providing fresh air and eliminating the waste air from the body.

The branching pattern of the human respiratory system includes option A) trachea bronchi bronchioles and alveoli.

The Respiratory system can be explained as:

The respiratory system includes the major organ lungs which along with some other tissues makes up the whole system.

The trachea gets diverged into two branches named bronchi which further splits into lungs called bronchioles.

The bronchioles spread throughout the lungs and have a sac-like small structure on its end called alveoli where the exchange of gases takes place.

Therefore, option A is the correct sequence of respiratory branching.

Learn more about the respiratory system here:

https://brainly.com/question/1621897

1. A disease vector is a(n)
A) organism that transmits a disease
B) symptom of a disease
C) environmental condition associate with a disease​

Answers

Answer:

the answer is A

Explanation:

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:

Explain how waves eventually even out a shortline?​

Answers

Answer:

They expend all their energy overtime

Explanation:

HELP PLEASE WILL GIVE POINTS FOR VOLCANOS DRAG AND DROP USE ATTACHMENT PLEASE

Answers

Answer:fissure (g) evacuate (b) magma (c) lava (h)

Explanation:

5:i, 6:b, 7:h, 8:c, 9:j, 10:a, 11:d, 12:g, 13:e, 14:f

I NEED HELP PLEASE

will mark brainliest

Answers

Answer:

As one goes up the other does as well for the first 2 but they aren't proportional (it is not simple cause and effect as there is a lot of factors)

The last question is to decrease their emissions as rising temperature is being effected by rising CO2 levels and rising temperature can cause a feedback loop causing more rising temperature

Explanation:

Margaret has detached earlobes (a) , which is a recessive trait. If she wanted ALL of her children to have attached ears (A), what type of man would she need to marry in order to give her the best chances?

A. A man with the genotype AA

B. A man with the genotype aa

C. A man with lobed ears like hers

D. A man with the genotype Aa

Answers

I think the answer is A. My dude.

Margaret can have all her children with attached earlobes only if she marry a man with AA dominant genotype.

As given,

Margaret has detached earlobes (a) which is a recessive trait  If she wanted all of her children to have attached ears (A) if she have to marry a man with the dominant trait

Punnett' square:

                                    A           A

                        a       Aa         Aa  

                          a       Aa         Aa

[Aa] are the genotype with attached earlobes [dominant genotype]

Therefore, Margaret can have all her children with attached earlobes only if she marry a man with AA dominant genotype.

To know more about dominant and recessive trait.

https://brainly.com/question/20730322

each codon codes for an

Answers

Answer:

An amino acid.

Explanation:

Each codon applies to an individual amino acid.

Answer:

Each codon corresponds to a single amino acid (or stop signal), and the full set of codons is called the genetic code. The genetic code includes 64 possible permutations, or combinations, of three-letter nucleotide sequences that can be made from the four nucleotides.

Explanation:

Scientist describe the motion of an object in relation to another_______

Answers

Answer:

phenomenon

Explanation:

phenomenon

where does the energy for active transport come from ​

Answers

Answer:

Active transport is a process that is required to move molecules against a concentration gradient. The process requires energy. Energy for the process is acquired from the breakdown of glucose using oxygen in aerobic respiration. ATP is produced during respiration and releases the energy for active transport.

I hope it's helpful!

Add a brown eyes cross in the Punnett Square below for practice: Mother genotype (Bb) in the top squares, father genotype (Bb) in left side squares. B B. I b​

Answers

Answer:

My answer is the genotypes are BB, Bb, Bb, and bb.

Explanation:

I attached a photo of the punnet square after crossing the genotypes Bb and Bb.  Crossing the B on top with the B on the side results in the genotype BB.  Crossing the b on top with the B on the side results in Bb.  The genotype that results is written in the box that connects the row and the column (such as top row and left column results in BB).  

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