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Vesna [10]
3 years ago
12

What two digestive processes occur in the small intestine

Biology
1 answer:
LuckyWell [14K]3 years ago
6 0

Two digestive processes occur in the small intestine are:

1. Chemical digestion

Digestive enzymes from the pancreas and liver are secreted in the small intestine via the pancreatic duct. Also, bicarbonates are secreted from the pancreas into small intestine (duodenum) in order to neutralize acid coming from the stomach.

Molecules digested in small intestine are proteinsinto small peptides and amino acids  (by trypsin, chymotrypsin, aminopeptidase and dipeptidase enzymes), lipids into fatty acids and glycerol (by pancreatic lipase and bile from the liver) and some carbohydrates  into simple sugars (by pancreatic amylase enzyme).

2. Absorption

The food previously digested can pass into the blood vessels (be absorbed)  through either diffusion or active transport.

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Sometimes the microvilli on the epithelial cells lining the proximal tubule are destroyed. What effect would this have?
Aleonysh [2.5K]

Answer:

Reduced reabsorption of salts and nutrients from the proximal tubule.

Explanation:

The proximal convoluted tubules are the site for reabsorption of the largest amount of solute and water from the filtered fluid. It reabsorbs 65% of water, electrolytes such as Na+ and K+, almost 100% of the filtered glucose and amino acids and other electrolytes such as Ca2+, Mg2+, etc.

The simple cuboidal epithelial cells of the proximal convoluted tubule have a prominent brush border of microvilli on their apical surface. These microvilli serve to increase the surface area for reabsorption and secretion. Destruction of these microvilli would reduce the reabsorption of the above-mentioned salts and nutrients from proximal convoluted tubules.

7 0
3 years ago
How is cytokinesis different in plants and animals
Art [367]
In plants a cell plate is formed causing the division of the cells.In animal cells a cleavage furrow is formed in the cell membrane and separates the two new cells
3 0
3 years ago
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9. What is always true of a binary compound? It has a double bond. It has two elements. It has covalent bonds. It has two atoms.
juin [17]

Answer

Correct answer is :It has two elements

Explanation

A binary compound is a compound that is made up of two of the elements in the periodic table. Some examples of binary compounds are NaCl and N_2O. This means that a binary compound can have more than 2 atoms as in the case of hydrogen oxide. Some binary compounds are ionic as in the case of sodium chloride.This shows that they do not necessarily have to have covalent bonds. This also rules out the possibility that they may always have double bonds as ionic compounds are bound together by ionic bonds. The only thing that will always be true of binary compounds is that they will always have 2 elements.

7 0
3 years ago
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Explain how a sprinter gets energy during a 30-second race. Is the process aerobic or anaerobic? How does it
lord [1]

Answer:

sprint runners rely on lactic acid fermentation as there main source of energy,printing takes a lot of effort and a lot of big movements  and a lot energy on demand . cellular respiration makes ATP at a slower rate than lactic fermentation therefore it is anaerobic

Explanation:

the sprinter uses ATP already in muscles as well as ATP produced by lactic acid fermentation. A long-distance runner gets its ATP solely off of cellular respiration

hope this helps

3 0
3 years ago
What is the difference between osmosis and diffusion:)
WITCHER [35]
Osmosis is the movement of solvent particles
Diffusion is the movement of particles from an area of higher concentration to lower concentration
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3 years ago
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