Which of the following statements regarding digestion and absorption of carbohydrates is TRUE? Lactose intolerance results from an insufficiency of the enzyme amylase. Digestible polysaccharides are broken down into the monosaccharides glucose, galactose, and fructose, which can be absorbed. Sucrose is the main form of carbohydrate that can be absorbed by active transport across the intestinal epithelium. Carbohydrate digestion begins in the stomach. Cellulose from plants is a polymer of glucose that can be easily digested and absorbed by the human GI tract.

Answers

Answer 1

Answer:

CARBOHYDRATE DIGESTION AND ABSORPTION

For dietary carbohydrates to be utilized by the body, they must be converted during digestion to monosaccharides. In addition to starch, the other major dietary carbohydrates are the disaccharides lactose and sucrose, and the monosaccharide fructose. The monosaccharides produced by complete digestion of these dietary carbohydrates are glucose, galactose, and fructose.

The digestive process begins with salivary amylase, which randomly cleaves the α-1,4 linkages of starch. Although amylase digestion begins in the saliva, pancreatic α-amylase is more important to the complete digestion of starch (Fig. 19-1). Starch is degraded first to dextrins and then to a mixture of glucose, maltose, and isomaltose (containing the α-1,6 linkages that are not digested by amylase).

The major disaccharidases, located in the brush border of the intestinal lumen, are

Maltase—hydrolyzes maltose

Sucrase-isomaltase—hydrolyzes sucrose and isomaltose

Lactase—hydrolyzes lactose

Whenever lactose goes undigested, it is not absorbed and passes into the large intestine. Here lactose is acted on by the intestinal flora that ferment it, producing large quantities of CO2, hydrogen gas, methane, and organic acids; the last irritate the intestines, increasing intestinal motility. All these products have only one way out. Thus, the symptoms that characterize lactose intolerance are bloating and flatulence and, in extreme cases, a frothy diarrhea. Lactose intolerance is least common in Northern Europeans and their descendants and most common in descendants of Asian, African, and South American origin.

HISTOLOGY

Brush Border Dynamics

The unstirred brush border of the intestinal lumen consists of finger-like processes, known as microvilli, of the surface absorptive cells. Many enzymes associated with the process of digestion and absorption are located on the surface of these microvilli. This allows the products of digestion such as free fatty acids, amino acids, and monoglycerides to be absorbed by the cells rather than be swept into the lumen itself.


Related Questions

Why do we discuss crude birth and death rates in environmental science?
A. it is too difficult to calculate the regular birth rate
B. it is too difficult to calculate the regular death rate
C. allows us to compare the populations of different
countries
D. because that's the way we've always done it

Answers

C. Allows us to compare the populations of different countries

How does freshwater enter the aquifer ?

Answers

Answer:

some sort of water system, (a river/groundwater/purification plant ect.)

Explanation:

What is the fundamental branch of Science from which Neuroscience stems, Biology, Mathematics, or Physics?

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Answer:

Mathematics is the branch of science, which deals with numbers, involves calculations and mainly focuses on the study of quantity, shapes, measurements etc.

How do limiting factors influence each other?

Answers

Answer:

In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations. ... Other changes in limiting factors will cause a population to decrease.

Explanation:

hope it helps.

Answer: Two or more limiting factors may work in conjunction with one another.

Explanation:  For example, parasites and disease. In this case, we have a biotic factor (parasites) combined with an abiotic factor (a disease-causing virus). Combining these limiting factors creates a deadly team that can have an even greater impact on a population's growth and survival.

What determines whether an crop is a spring annual,
summer annual, or winter annual?

Answers

Agriculture  is commonly described as the science or art of farming. What determines them is climate, temperature, cold, if seed can be sown outdoors in the spring , the ability to withstand early spring and fall frosts and winter temperatures.

Summer annual crops are known to germinate, flower, produce seed, and die by frost amidst the warmer months of the year.

Winter annuals often sprout in the late summer and autumn, it is known to be dormant during the winter, and grow during the next spring and summer. its young winter annual plants live through the winter then flower, set seed and die out the following summer.

Winter annuals often bloom in winter or spring. They grows in very low to the ground. Examples are henbit, deadnettle, chickweed etc. Spring annuals are known to sprout early in the spring.

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please help me match these up click the photo to see it better

Answers

Mitosis = Division of the cell’s genetic material

Cell cycle = All the life processes of the cell, including cell division

Cancer = Disorder in which the cell cycle is disrupted, causing uncontrolled cell growth

Binary fission = Process that prokaryotic cells use to divide

Synthesis = Phase when DNA replication occurs

Checkpoint = Point in the cell cycle where the cell verifies that it is ready to go to the next phase

After surgery to repair burst fractures of his C6 and C7 vertebrae, Luke was transferred to the surgical intensive care unit. Which of the following healthcare professionals would most likely provide, coordinate, and implement Luke's care; administer medications; assess/monitor his status; and educate/support Luke and his family about his injury and care?

Answers

Answer:

A neurologist specializes on spinal injuries so he/she would be treating Luke.

I NEED HELP ASAP. Ice cream atomic theory write a summary about the topic. added scientific information definite/indefinite shape & definite/indefinite volume for solids, liquids, AND gases. PLZZZZ HELP ME

Answers

Answer:

gang gang

Explanation:

During the 1918 influenza pandemic, the world was still engaged in World War I. Movement and mobilization of troops placed large numbers of people in close contact, and living spaces were overcrowded. How could modern epidemiology have assisted with the detection and prevention of this communicable disease?

Vaccines could have been given to all military personnel.
Cities could have implemented community mitigation measures.
Social distancing could have been enforced in military living spaces.
Records of troop movement could have been used for contact tracing.

Answers

Answer:

D

Explanation:

Modern epidemiology has assisted with the detection and prevention of this communicable disease through Records of troop movement that could have been used for contact tracing.

What brought on the influenza pandemics?

It becomes due to an H1N1 virus with genes of avian beginning. Despite the fact that there isn't always a time-honored consensus regarding where the virus originated, it spread globally at some point in 1918-1919. in the united states of America, it turned into first recognized by army employees in the spring of 1918.

How did the Black demise stop?

The most famous theory of the way the plague ended is thru the implementation of quarantines. The uninfected would normally continue to be of their houses and handiest depart whilst it turned into important, at the same time as those who may want to have enough money to accomplish that would depart the more densely populated areas and live in more isolation.

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3. Your body needs protein. Protein is broken down into amino acids that are then used to build the
proteins your cells need to function. What is the primary source of protein in your diet? Use the
food pyramid to see what types of protein-rich foods you eat on a regular basis. (2 points)

Answers

Answer:

Explanation:

Bro here you can find the protein section at the right middle side of the image

The primary source of protein can be found in the foods which are used on a regular basis includes dairy products, poultry products, green vegetables etc.

Examples of protein- rich foods dairy products : milk, cheese, yoghurt, kefir poultry : chicken, eggslentils, salmon, fish, seafood like crabs and prawns green vegetables etc.

The food pyramid shows these above mentioned foods are good source of protein that needs to be consumed.

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https://brainly.in/question/2619255d pyramid :

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What is it called when a new cell expresses the traits of a skin cell?
cell specialization
cell reproduction
ocell replication
cell division

Answers

Answer:

cell specialization I think

What is purebred breeding?

A: A form of Straight Breeding with related animals?
B: A form of straight breeding with non-related animals
C: A form of straight breeding with registered animals
D: A form of straight breeding with grade females and purebred sires.

Answers

A: A form of Straight Breeding with related animals

A purebred refers to offspring resulting from a true breeding.

As a commodity producer, the price that you receive is likely to be different than the price your neighbor receives for selling the same commodity.


True

False

PLEASE HELP ME PLEASE

Answers

Answer:

True True True

Explanation:

hope it help

Explanation:

As a commodity producer, the price that you receive is likely to be different than the price your neighbor receives for selling the same commodity.

True✅✅

False

scientists often test their hypotheses with controlled experiments. which of these is a rule for conducting a controlled experiment?
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b. keep all variables constant
c. change as many variables as possible
d. change only one variable at a time

Answers

Changing only one variable at a time is a  rule for conducting a controlled

experiment.

Controlled experiment involves the use of dependent and independent

variables . Changes in the independent variable brings about a

corresponding change in the dependent variable which is then recorded.

It is however important to note that changing more than only one variable at

a time won't accurately determine if the changes in the results were as a

result of one cause. This is why only one variable has to be changed at a

time.

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which two organisms are closely related?

Answers

While orangutans and gorillas are in the great ape family, humans are most closely related to two other species in the family: bonobos and chimpanzees.

Carry learning!

study hard!

Brainliest please thank you!

Answer:

orangatangs and gorrilas are a prime example of close inheritance

Explanation:

These two species are the two closest related species

The theme of fly for your life
HURRYYY!!!

Answers

Answer:

gunship

Explanation:

Help me solve this question please

Answers

Answer:

where is the question .....?????

what are the three parts of the data analysis section of a lab report?​

Answers

Answer:

1) rough reading

2)initial reading

3)final reading

Explanation:

those three are always important for every lab report

The average level of glucose (also known as blood sugar in a person) is 85 mg/100 mL of blood. If the person has 5.1liters of blood, how many milligrams of glucose are present in the blood

Answers

Answer:

The average level of glucose (also known as blood sugar in a person) is 85 mg/100 mL of blood. If the person has 5.1 liters of blood, how many milligrams of glucose are present in the blood? a. 17 mgb.1.7 x 10-4 mg C. 4.3 mg d.4.3 x 103 mg e. 121 mg

Rather than flight, what do scientists think feathers initially evolved for?

Answers

Answer:

Many Bird ancestors like dinosaurs originally had these feathers even tho they didn't fly. Bird feathers have originally been thought to be used for mate attraction or even insulation. Modern birds have many different types of feathers!

you're

welcome !

what valve separates two chambers and how do they function by preventing the
blood to go to what direction?

Answers

Answer:

bicuspid and tricuspid valve

Explanation:

Tricuspid valve separates right auricle and ventrical whereas bicuspid separates left auricle and ventrical.

they help by preventing the back flow of the blood by avoiding them to go to the position where they came from.

Only 3% of the water on earth is fresh water, the kind we need for drinking and growing food. Of that 3% , how much is locked in ice caps, and permanent snow.

Answers

Answer:

2.5%

Explanation:

when did large mouth bass arrive in nebraska

Answers

Explanation:

around 1880 and 1883

i think

1885 is the correct answer

Helpppppppppp HELPPPP
What two things must happen for there to be a proxigean spring tide?
full moon and the closet perigee
new moon and the furthest apogee
new moon and the closest perigee
full moon and the furthest apogee

Answers

Answer:

Full or New Moon + Perigee

All birds lay their eggs on land.
Which feature of birds allows the embryos in eggs to maintain homeostasis
and survive on land?
A. Hard, watertight shells
B. Specialized beaks
O C. Flexible, leathery shells
D. Insulating feathers

Answers

B just specialized beaks pls put the answer like Brainly answer

what was the first life form on earth based on the diagram above

Answers

Answer:

The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals consisted of a type of carbon molecule that is produced by living things.

Explanation:

What are the two kingdoms of prokayotic organism?

Answers

Answer:  Bacteria and Archaea

Explanation:

In translation What are are the three letters called in mRNA and what are they connected to ??

Answers

Answer:

During translation, the ribosome reads 3 letters at a time on the mRNA strand called a codon. The anticodons, which are connected to the amino acid, match up with the letters on the mRNA strand  

Explanation:

(FOR LIZARD OWNERS)
i have a leopard gecko and its heat lamp bulb burnt out will it be ok until tomorrow? sorry i have no friends to ask yk

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Maybe yes maybe no because it depends on trombonist that is on the blood.

how to make soap without the use of oil.​

Answers

Answer:

its impossible

Explanation:

You can use lard as a substitute or just don’t put oil in it. ‍♀️
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