The group of molecules called nucleotides contain: A)           phosphate groups.
                B)            pyrimidines.
                C)            purines.
                D)           pentose (a 5-carbon sugar).
                E)            all of the above.

Answers

Answer 1

Answer:

The group of molecules of nucleotides contain phosphate, purines, pyrimidines, and pentosesugar. The correct option is E.

What is nucleotide?

Nucleotides are organiccompounds made up of a nucleoside and a phosphate. They function as monomericunits of the nucleic acid polymers - deoxyribonucleic acid and ribonucleic acid - which are both essential biomolecules in all life on Earth.

Nucleotides are the buildingblock of DNA and RNA. They are genetically encoded.

Nucleotides function as coenzymes, which are required for enzymes to catalyze many biochemical reactions. Our bodies store energy as ATP.

A nucleotide is made up of a sugar molecule (ribose in RNA or deoxyribose in DNA) linked to a phosphate group and a nitrogen-containing base including purines and pyrimidines.

The nucleotides are essential to living organisms because they are the building blocks of nucleic acids, which control all hereditarycharacteristics.

Thus, the correct option is E as all options are correct.

For more details regarding nucleotides, visit:

brainly.com/question/13185536

#SPJ2

Answer 2

Answer: The group of molecules called nucleotides contain phosphate groups, pyrimidines, purines, and pentose (a 5-carbon sugar). Therefore, E. all of the above is the correct answer.

Related Questions

A car on a 25-m2 hydraulic lift platform weighs 15,000 N. If the force on the smaller piston required to lift it is 1/100 its weight, what is the area of the smaller piston?
what is the significance of the number that is written above each of the atomic symbol in the periodic table?
Values of Ksp greater than 1.0 infer: 1. The solid phase is relatively insoluble. 2. The solid phase is relatively soluble. 3. The chemical reaction proceeds readily to the right. 4. The chemical reaction proceeds readily to the left.
Atoms always have a charge of?
Chemistry Help:This reaction describes cellular respiration.C6H12O6 + 6O2 → 6CO2 + 6H2OWhich compounds are the reactants and which are the products?A.reactants: C6H12O6 + 6O2 products: 6CO2 + 6H2OB.reactants: 6CO2 + 6H2Oproducts: C6H12O6 + 6O2C.reactants: 6CO2 + C6H12O6products: 6H2O + 6O2D.reactants: 6H2O + 6O26CO2 + C6H12O6products: 6CO2 + C6H12O6

A substance with a definite shape and volume is a ___ phase of matter

Answers

Explanation:

Matter in which molecules have strong force of attraction are held tight together. Therefore, to break this force of attraction strong force is required.

This type of matter is know as solid. Also, it is known that solid substances have definite shape and volume.

Thus, we can conclude that a substance with a definite shape and volume is a solid phase of matter.

I would say solid shape of matter.

18. Which of the following reactions are endothermic or exothermic? Explain your answers. A. When a certain amount of potassium nitrate is dissolved in water, the water temperature drops from 23°C to 18°C. B. Jack cooks himself a steak. C. When cold water is mixed with sulphuric acid, the mixture can rapidly reach the boiling point of water. D. A flare burns up slowly.

Answers

Answer:

The answer to your question is below

Explanation:

An endothermic reaction absorbs heat to proceed.

An exothermic reaction releases heat to proceed.

A. When a certain amount of potassium nitrate is dissolved in water, the water temperature drops from 23°C to 18°C. This is an example of an endothermic reaction because of the temperature diminishes.

B. Jack cooks himself a steak. This is an endothermic reaction because the steak does not cook itself it needs heat to be cooked.

C. When cold water is mixed with sulphuric acid, the mixture can rapidly reach the boiling point of water. This is an exothermic reaction because the temperature of water increases, which means that energy is been released.

D. A flare burns up slowly. I think it is an endothermic reaction because it was supply energy to proceed.

Describe the theory of plate tectonics

Answers

Answer:

The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.

Explanation:

From Google

Increasing the ? of a solvent increases the solubility of the solute

Answers

There are a lot of ways to increase the solubility of the solute. Increasing the temperature, mixing time and surface area of a solvent increases the solubility of the solute

The answer is temperature

What can be concluded if an ion of an element is smaller than an atom of the same element?(1) The ion is negatively charged because it has fewer electrons than the atom.
(2) The ion is negatively charged because it has more electrons than the atom.
(3) The ion is positively charged because it has fewer electrons than the atom.
(4) The ion is positively charged because it has more electrons than the atom.

Answers

The question is,'what can be concluded if the ion of an element is smaller than the atom of the same element'. The correct option is 'the ion is positively charged because it has fewer electrons than the atom. An atom becomes charged either by donation or accepting electrons. When an atom donate electrons, it becomes positively charged and it has less electrons than its atom. For instance, calcium has 20 electrons, it becomes an ion by donating its two electrovalent electrons, thereby having only 18 electrons left. But when an element accepts electrons, it becomes negatively charged and has more electrons than its atom.

The following conclusion can be made if an ion of an element is smaller than an atom of the same element:

$\boxed{\left( 3 \right){\text{ The ion is positively charged because it has fewer electrons than the atom}}{\text{.}}}$

Further explanation:

Ions are the entities with a net electric charge, be it positive or negative. Since positive and negative charges can be present on the ions, ions are of two types-positively charged and negatively charged ions. The ions formed by loss of electrons develop a positive charge and are called cations. But the ions produced by the gain of electrons acquire a negative charge and are called anions.

Since cations are positively charged ions, these have fewer electrons as compared to the corresponding neutral atom. So these ions experience stronger forces of attraction with the atomic nucleus and are smaller in size in size than the parent atom.

Anions are formed by the addition of electrons to the neutral atom. It has more electrons than the parent atom so it feels electron-electron repulsion due to which its size becomes larger than the parent atom.

So cations are smaller than the parent atom of the same element whereas anions are larger than the parent atoms. Therefore if an ion is smaller than the atom, it is positively charged due to the presence of fewer electrons than the parent atom.

Learn more:

Component of John Dalton’s atomic theory: brainly.com/question/2357175
Basis of investigation for the scientists: brainly.com/question/158048

Answer details:

Grade: Senior School

Chapter: Atomic structure

Subject: Chemistry

Keywords: ions, cations, anions, loss, gain, electrons, net electric charge, electron-electron repulsion, parent atom, smaller, larger, size, neutral atom, positive charge, negative charge.

What controls which substances can move into and out of a cell?