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Fudgin [204]
3 years ago
13

Which of the following does not describe enzymes?

Biology
2 answers:
Oksanka [162]3 years ago
5 0

The statement 'enzymes work by raising the energy of activation' is NOT true about the enzymatic activity. These proteins lower this energy.

<h3>Enzymes and activation energy</h3>

Enzymes are proteins capable of catalyzing specific chemical reactions in a given medium.

Enzymes work by lowering (instead of increasing) the activation energy of a chemical reaction.

Enzymes help to convert one or more reactants into specific products of the reaction that they catalyze.

Learn more about enzymes here:

brainly.com/question/1596855

Aleonysh [2.5K]3 years ago
4 0

Enzymes work by raising the energy of activation (Option A)

This is not true and does not describe enzyme

This is not true because enzymes are biochemical catalysts which helps to lower the activation energy of chemical reactions reactions. The lower the activation energy for a reaction, the faster the rate of reaction

<h3>What are enzymes?</h3>

Enzymes are biochemical substances which act as a catalyst to speed up chemical reactions

So therefore, enzymes speed up ( catalyze ) chemical reactions reactions by lowering its activation energy.

Learn more about enzymes:

brainly.com/question/16204837

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Salt concentration would be an example of what type of factor in an ecosystem? A. food production B. abiotic C. biotic
stira [4]
Hello,

Here is your answer:

The proper answer to this question is option C "<span>biotic".

Here is how:

Salt is consider a biotic factor because of it concentration which makes it a factor of the ecosystem.

Your answer is C.

If you need anymore help feel free to ask me!

Hope this helps!</span>
7 0
3 years ago
For the following question, match the key event of meiosis with the stages listed below. I. Prophase I V. Prophase II II. Metaph
Andrei [34K]

Answer:

VII. Anaphase II

Explanation:

During metaphase II, fibers of the spindle apparatus drive chromosomes to the cell equatorial plane, where they line up. Sister chromatids are holden together until they reach <u>Anaphase II</u><u>,</u> during which specialized enzymes break the bonds between chromatids and separate them. Each chromatid migrates to one of the poles. In telophase II, the new chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole

3 0
2 years ago
Brainliest for correct answer thanks
babunello [35]

THE DEFINITION OF BIODIVERSITY:Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of species in an area.


BEST ANSWER: Based of the def, I would go with answer A as it makes the most sense.

5 0
3 years ago
Proteins, large complex molecules, are major building blocks of all living organisms. Discuss the following in relation to prote
Anastasy [175]

Answer:

Proteins, large complex molecules, are major building blocks of all living organisms. Discuss the following in relation to proteins.

(a) The chemical composition and levels of structure of proteins.

Proteins are chemically macromolecules formed by manomeric units called amino acids. The structural organization of proteins is as follows:  Primary, Secondary, Tertiary and Quaternary.

(b) The roles of DNA and RNA in protein synthesis

From DNA, ribosomal RNA is formed, a type of RNA present in ribosomes that is responsible for protein synthesis. Therefore, the role of DNA in protein synthesis is essential: without DNA, there are no proteins.

(c) The roles of proteins in membrane structure and transport of molecules across the membrane

Proteins can work by transporting ions in different ways.

Explanation:

(a) The chemical composition and levels of structure of proteins.

Proteins are chemically macromolecules formed by manomeric units called amino acids, these have in their structure a carboxyl group and amino group, attached to the same carbon. To be assimilated by the body, proteins must be degraded in the amino acids that make them up.

The amino acids are linked together by peptide bonds. In those bonds, the amino group of one amino acid reacts with the carboxyl group of the other.

The structural organization of proteins is as follows:

Primary: Sequence of the amino acids in the chain with peptide bonds.

Secondary: Spatial arrangement of the amino acids of a protein. They stabilize by means of hydrogen bonds. There are two types: the propeller a and the folded blade b.

Tertiary: Three-dimensional arrangement of the polypeptide chain, stabilized by forces of Waals.

Quaternary: Union of weak bonds of arias polypeptic chains that originate a protein complex.

(b) The roles of DNA and RNA in protein synthesis

RNA fulfills numerous functions, the most important being protein synthesis, in which it copies the genetic order contained in the DNA to use it as a standard in the manufacture of proteins and enzymes and various substances necessary for the cell and the organism. For this, it goes to the ribosomes, which operate as a kind of molecular protein factory, and it does so following the pattern that the DNA prints on it.

(c) The roles of proteins in membrane structure and transport of molecules across the membrane

The cells contain proteins that are embedded in the lipid bilayer of their plasma membranes. These proteins can work by transporting ions in different ways. Then, most of the water-soluble ions and molecules are unable to spontaneously cross the lipid bilayer of the membrane (which act as a barrier) and require the concurrence of special carrier proteins or protein channels. In this way the cell maintains concentrations of ions and small molecules different from those prevailing in the external environment.

7 0
3 years ago
Which of the following plant systems is involved in the process of drawing up nitrogen from the surrounding soll?
guajiro [1.7K]
Stems would draw up nitrogen
5 0
3 years ago
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