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Biology Chapter: Macromolecules and Cell Functions

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Biology Chapter: Macromolecules and Cell Functions

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Questions and Answers

What are the two main types of fats categorized under lipids?

Monomers and Polymers

Solid fats and Liquid oils (correct)

Saturated and Unsaturated

Triglycerides and Phospholipids (correct)

Which of the following correctly describes the structure of lipids?

They do not have a hydrophilic part

Composed solely of carbon and hydrogen

Form long chains of repeating units called polymers

Insoluble in water and contain hydrophobic regions (correct)

Which statement about proteins is true?

Proteins can only be composed of C, O, and H

They are made up of only carbon and oxygen

Proteins consist of amino acids as their building blocks (correct)

There are few types of proteins in the body

What is the primary role of DNA in the cell?

To contain genetic information Signup and view all the answers

What distinguishes a monomer from a polymer?

Polymers are made up of repeating units called monomers Signup and view all the answers

What role does ATP play in cells?

Transports cellular energy Signup and view all the answers

Where is DNA primarily located within a cell?

Nucleus Signup and view all the answers

What is the primary function of RNA in cells?

Carries genetic information from DNA Signup and view all the answers

Why is the chemical composition of ATP and nucleic acids important in evolutionary studies?

It indicates evolutionary relationships among organisms Signup and view all the answers

What percentage of the mass of organisms is primarily accounted for by carbon, hydrogen, oxygen, and nitrogen?

95% Signup and view all the answers

Which of the following roles does water NOT play in living organisms?

Acts as a source of energy Signup and view all the answers

Which organic compound is primarily known for its energy role in organisms?

Carbohydrates Signup and view all the answers

Which mineral compound is essential for the formation of hemoglobin?

Iron Signup and view all the answers

Identify the correct statement about organic molecules.

They consist of a carbon atom skeleton with H, O, and N elements added. Signup and view all the answers