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xxTIMURxx [149]
3 years ago
15

What term describes an enzyme?

Biology
2 answers:
mina [271]3 years ago
6 0
An enzyme is a biological molecule that acts as a catalyst in many reactions. They speed up chemical reactions especially the reactions inside living organisms. An enzyme is made up of amino acids. They are known to be very efficient catalysts. Hope this answers the question!
Eduardwww [97]3 years ago
5 0
Enzymez are converted into products by the reactions they catalyze
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3 years ago
If a crystal of potassium permanganate is placed on agar and after 15 minutes the diameter of the area over which the dye has sp
Vadim26 [7]

Answer:

Diffusion rate is 1.96 × 10^{-3} cm^{2}/s

Explanation:

Diffusion is the process in which the molecules of a substance propagates from a region of higher concentration to region of lower concentration through a semi-permeable membrane.

diffusion rate = \frac{area}{time}

Given that; diameter = 15 mm, time = 15 minutes.

The dye spread in a circular form, so that;

area = \pir^{2}

r = \frac{diameter}{2} = \frac{15}{2} = 7.5 mm = 0.75 cm

area = \frac{22}{7} × (0.75)^{2} = 1.7679 cm^{2}

time = 15 minutes = 15 × 60 = 900 seconds

So that;

diffusion rate = \frac{1.7679}{900}

                      = 0.0019643 cm^{2}/s

Diffusion rate is 1.96 × 10^{-3} cm^{2}/s

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Artificial erosion does not impact the environment any more than natural erosion does. True or False
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