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3 years ago

How does catalyst work

Biology

2 answers:

Aleks04 [339]3 years ago

7 0

A catalyst works by providing a convenient surface that
enables a different route for a chemical reaction to occur.

scoray [572]3 years ago

4 0

The activation energies of both these steps is lower than the activation energy without the presence of a catalyst, therefore more molecules will have the energy to react using the catalyst; hence the rate of reaction is increased. Take for instance the reaction between ozone and oxygen free radicals to form di-oxygen.

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How does collecting natural gas effect the environment?

Art [367]

Air pollution. Cleaner burning than other fossil fuels, the combustion of natural gas produces negligible amounts of sulfur, mercury, and particulates. Burningnatural gas does produce nitrogen oxides (NOx), which are precursors to smog, but at lower levels than gasoline and diesel used for motor vehicles.

8 0

3 years ago

Which process of cellular respiration generates the most ATP when glucose is completely oxidized to carbon dioxide and water?.

Dima020 [189]

Maximum number of ATP re produced during the electron transport chain and chemoosmosis. During glycolysis and krebs cycle, 4 ATP are produced in total. During the ETC of oxidatie phosphorylation, 4 ATPs are produced.

4 0

2 years ago

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Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DN

Troyanec [42]

Answer:

When analyzing data on the nitrogenous base content of the DNA of various species, the claims are supported by the data:

In any one species, the amount of adenine closely approximates that of thymine.
In any one species, the amount of guanine closely approximates that of cytosine.
The amounts of A, T, G, and C in DNA varies from species to species.

(options A, B and D)

Explanation:

Organizing the data has to:

Source of DNA A T G C

Streptococcus 29.8 31.6 20.5 18.0

Yeast 31.3 32.9 18.7 17.1

Herring 27.8 27.5 22.2 22.6

Human 30.9 29.4 19.9 19.8

E. Coli 24.7 23.6 26.0 25.7

DNA is the molecule that contains the genetic information of each species, formed by sequences of nitrogenous bases Adenine, Thymine, Cytosine and Guanine.

Since Adenine and Thymine -as well as Cytosine and Guanina- are complementary, the percentage of them will be very similar in each DNA molecule.

The genetic information -which determines the physical and functional characteristics of each organism- is encoded in the DNA and is different for each species, so the percentages of nitrogenous bases vary from species to species.

5 0

3 years ago

What are the important animal groups that evolved from amniotes? What in turn, evolved from these groups?

balandron [24]

Aminotes include synapsids and sauropsids as well as their ancestors, back to amphibians.

6 0

3 years ago

When did oxygen begin to accumulate in the atmosphere

oee [108]

Answer:

2.33 billion years ago.

Explanation:

Hope this helps <3

4 0

2 years ago

Read 2 more answers