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8 months ago

Pepsin is an enzyme found in the human stomach that breaks down protein. Pepsin will not break down starch.

1 answer:

5 0

The statement which best explains why Pepsin will not break down starch is that enzymes only work for specific substrates.

<h3>What is an Enzyme?</h3>

This is referred to as a biological catalyst which helps to speed the rate of chemical reaction in the body by lowering the activation energy needed to start it up. it is also proteinous and can be denatured by heat and other substance such as chemicals.

They are also substrate specific which means they can't act on any type of substance. For example enzyme such as amylase acts on only starch while pepsin acts on only protein.

Read more about Enzyme here brainly.com/question/1596855

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What is the boundary between the earths lower mantle and the upper mantle called ?

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The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (at about 10 km (6.2 mi) under the oceans and about 35 km (22 mi) under the continents) and ends at the top of the lower mantle at 670 km (420 mi). Temperatures range from approximately 200 °C (392 °F) at the upper boundary with the crust to approximately 900 °C (1,650 °F) at the boundary with the lower mantle. Upper mantle material which has come up onto the surface is made up of about 55% olivine, 35% pyroxene and 5 to 10% of calcium oxide and aluminum oxide minerals such as plagioclase, spinel, or garnet, depending upon depth.

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2 years ago

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2 years ago

Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro

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3/4

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If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

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F1 genotypes: 1/2 AA, 1/2 Aa
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F1 genotypes: 1 Bb
F1 phenotypes: all B

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F1 genotypes: 1/4 CC, 2/4 Cc, 1/4 cc
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