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vova2212 [387]
3 years ago
13

What are digestive enzymes? Give three examples of digestive enzymes and briefly describe their specific functions.

Biology
2 answers:
Mumz [18]3 years ago
8 0

Answer:

Digestive enzymes are the natural substances our body needs to help  break down and digest food

We have three main digestive enzymes :

Proteases: These enzymes break down protein into small peptides and amino acids.

Lipases: break down fat into three fatty acids plus a glycerol molecule.

Amylases: Are responsible for breaking  down carbs like starch into simple sugars.

Explanation:

aleksklad [387]3 years ago
5 0

Digestive enzymes are proteins that catalyze mainly hydrolysis reactions that make nutrients absorbable in the digestive tract. Pepsin is a gastric enzyme that turns proteins into albumoses and peptones which are shorter peptide chains that are then hydrolyzed to even shorter chains until amino acids by intestinal enzymes. Pancreatic amylase is an enzyme that turns starch(a polysaccharide) into maltose(a disaccharide). Lipase is present in the gastric juice, the pancreatic juice, and the intestinal juice. This enzyme catalyzes the hydrolysis of lipids(mainly triglycerides) into fatty acids and glycerol. When incomplete hydrolysis occurs triglycerides can become monoglycerides.

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Describe the key features of the Watson-Crick model for DNA structure.
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Answer:

Watson and Crick proposed the double helical model of DNA.

Explanation:

- This model says that DNA exist as double helix. It has two polynucelotide strands running in opposite direction i.e the strands are anti-parallel.

- Each polynucleotide strand is made up of several nucleotide liknked together by phophodiester bonds.

- The two strands are not coiled upon each other but the double strand is coiled upon itself around a common axis like the spiral stair case. Here base pairs forms the stairs and backbone of two strands form railing. Back bone contains sugar and phosphate.

- The base pairing is specific, adenine always pairs with thymine and guanine always pairs with cytosine. Thus if we see any base pair, it consists of one purine and one pyrimidine.

- The two strands of DNA thus show complementary base pairing.

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- One full helical turn involves ten base pairs and the base pairs are stacked  3.4 A apart.

- This form is called as B-form of DNA.

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3 years ago
Hormones what they do their target organ what organ produces
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2 years ago
Organisms like rabbits have many different kinds of cells to do different
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Explanation:

--------------------

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<h3>hope it will help u in understanding..</h3>
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