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Nady [450]
3 years ago
6

compared with normal hemoglobin, the hemoglobin of a person with sickle cell disease a. is longer. b. is shorter. c. has a diffe

rent sequence of amino acids. d. is sickle-shaped. e. has the same sequence of amino acids.
Biology
1 answer:
AfilCa [17]3 years ago
8 0
C. has a different sequence of amino acid

You might think its sickle shaped but the question is asking about the hemoglobin not about the red blood cell
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Many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (H2O2). The products of
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Answer:

A. It decreases the activation energy needed to start the reaction

Explanation:

Organic catalyst which speed up the rate of organic chemical reaction is living cells are called enzymes.They have specific reaction site called active sites.This must be in prefect shape with the substrate for the organic chemical reaction to take place

When this occurs the minimum amount of  energy of  reaction to  activate or stimulate  the the atoms and molecules of the substrate to undergo chemical reaction is  lowered.This energy of reaction is celled activation energy.

Catalase thought its active sites lowers the activation energy so that the molecules of H2O2 could break down to C02 and H2 faster,thereby reducing the time for theses product to form.The is the general roles of enzyme.To increase the rate of chemical reaction,by reducing the activation  energy.

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3 years ago
a warming global climate can create hot and dry regions. it can also contribute to natural CO2 emissions. For example, lighting
motikmotik

<em>b. wildfires</em>

<em>b. magnified the greenhouse effect</em>


The first blank is pretty simple; if lightning (electricity) strikes something flammable, like a forest, a fire is sure to ensue. This fire will obviously spread to the other trees and cause a massive wildfire.

The second blank is the greenhouse effect. The greenhouse effect is said to have caused our warming climate, which makes sense because heat from the sun gets trapped in our global "greenhouse", or the lower atmosphere. Lower atmosphere is key here because a large event like a massive wildfire can add some more heat to the atmosphere and contribute to this effect. A wildfire may seem like a minor event on a global scale, but it will do more damage to the atmosphere than you think!

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Marysya12 [62]

Answer:

The process by which green plants and some other organisms in the presence of sunlight to synthesize nutrients from carbon dioxide and water is called photosynthesis.

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Your white blood cells will attack your heathly cells because they are confused
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This is the foundation for DNA replication, the rule that states the pure adenine (A) always pairs with the pyrimidine thymine (
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It might be always pairs with the purine guanine

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