Nucleotides are made of nucleic acids, proteins are not a quick source of energy, and not all biochemical compounds contain carbon, hydrogen, and oxygen.
True or False:
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B.) the activation energy
C.)
D.) the concentration of reactants
Answer:
The correct answer is option B.) "the activation energy".
Explanation:
In chemistry, a catalyst is defined as a substance that accelerates a chemical reaction without being consumed in the reaction. Catalysts affect the activation of energy of the reaction by lowering it. This happens because catalysts open new pathways of reaction that require less energy, therefore the alternative routes need lowered activation energy for the reaction to start.
b. Chromosomes are threadlike structures that carry genetic information.
c. Humans receive the majority of their chromosomes from their mother.
d. Chromosomes are arranged in 20 distinct pairs in the human body.
Answer: its B actually
Explanation:
Answer:
B: Chromosomes are threadlike structures that carry genetic information.
Explanation:
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b: a phosphate group, a pentose sugar, a carboxylic acid
c: a pentose sugar, a nitrogen base, an R group
d: a nitrogen base, an amino acid group, a carboxylic acid
Answer:
a phosphate group, a pentose sugar, a nitrogen base
Explanation:
nucleic acid is a polymeric macromolecule made up of repeated units of monomeric 'nucleotides' composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
Answer:
Biuret reagent is the correct answer.
Explanation:
Biuret reagent is used to test the presence of the protein in a solution.
The biuret solution contains
Biuret reagent is a solution that is blue in color and when it reacts with protein the color gets a change to pink-purple due presence of several peptide bonds and when there is no protein present in the solution the color remains blue.
The biuret reaction takes place when the copper II ions placed in the solution as a cupric sulfate gets reduce to copper I ions due to the presence of peptide bonds and the color change is observed from blue to violet.
The biuret reagent is used to test for proteins. A biuret test, also known as a peptide bond test, is a chemical test used to measure the number of peptide bonds present in an analyte.
Biuret reagent consists of NaOH (sodium hydroxide) and hydrochlorofluorocarbons (sulfate) and potassium sodium tartrate. The tartrate is added to the chelate to stabilize the cupric ions.
When pure, the reagent is a pale blue color. However, when the reagent is mixed with protein, the reaction results in a light purple color. The deep blue/purple color is caused by a copper ion complex with a protein amide group.
To learn more about the biuret reagent, refer to the link:
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