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AnnZ [28]
3 years ago
7

1 A(n) hypothesis/observation is tested in an experiment.

Biology
1 answer:
jeyben [28]3 years ago
5 0

Answer:

if ur asking why here it is Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories

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A scientist observes that, when the pH of the environment surrounding an enzyme is changed, the rate the enzyme catalyzes a reac
vredina [299]

Answer:

A- A pH change can cause the enzyme to change its shape

Explanation:

A rise or fall in the pH of the medium from the optimum of pH 7 usually affect  the  enzymes' active sites  of  and therefore the  shape and  the  rate of enzyme activity.

Assuming  the pH is too low, the enzyme medium becomes acidic;Acidosis. The high Hydrogen ions concentration  interacts with the R-groups of the amino acids moiety of the enzymes, this interaction affects the ionization of the  R-groups, disrupting the ionic bonding holding these R-groups in shape.

This results in loss of the 3-Dimensional shape arrangements of the protein molecule  and therefore of the active sites. Since active sites of  enzymes  determines the specificity of the <u>enzymes substrate- complex </u> to give <u>enzyme-product complex,</u> the catalytic activity of the enzymes decreases, <u>the rate of  reaction decreases,and products formation stops, and the reaction also stops.</u>

The same is applicable to extremely high pH=Alkalosis.

However, the effective buffer system of the body prevents this scenarios from happening in real sense in the body. Through mopping by the  haemoglobin, excretion by the kidney, etc

7 0
3 years ago
Story: Blue green algae are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis.
Gre4nikov [31]

Explanation:

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3 years ago
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Which of the following best summarizes the process of cellular respiration in plants and animals?
Margarita [4]

Answer:

carbon based molecules + oxygen = water + carbon dioxide

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4 0
3 years ago
24 POINTS!!!!!!
Crazy boy [7]
V final = (Mass x V initial) + (Mass x V initial) /m + m
V = (0.04 x 300) + ( 0.5 x 0 ) / 0.04 + 0.5
V = 22.2 m/s
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the flounders ability to camouflage itself in different environments is a characteristic of Life known as
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The answer is iguana because they are the only animal that changes color
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