Macromolecules

Multiple Choice

Which macromolecule is the main component of the cell membrane and is responsible for long-term energy storage and insulation?

• Protein

• Lipid

• Nucleic Acid

• Carbohydrate

Multiple Choice

Why are carbohydrates considered essential for living organisms?

• They provide immediate energy and structural support in cells.

• They help in the absorption of vitamins only.

• They are the main source of genetic information.

• They are responsible for oxygen transport in blood.

Multiple Select

Which of the following are functions of proteins in the cell?

• Act as enzymes

• Store genetic information

• Provide structure to the cell

• Function as antibodies

Multiple Choice

Which of the following is the main component of the cell membrane?

• Phospholipid bilayer

• Cellulose

• Chitin

• Peptidoglycan

Multiple Select

Which of the following are functions of proteins in the cell?

• Act as enzymes

• Provide structure

• Store genetic information

• Function as antibodies

Multiple Choice

Which element is found in proteins but not in lipids?

• Nitrogen

• Carbon

• Oxygen

• Hydrogen

Multiple Choice

Which part of a phospholipid is hydrophilic and which part is hydrophobic?

• The head is hydrophilic and the tails are hydrophobic.

• The tails are hydrophilic and the head is hydrophobic.

• Both the head and tails are hydrophobic.

• Both the head and tails are hydrophilic.

Multiple Select

Which of the following are components of chromosomes found in the nucleus of eukaryotic cells?

• DNA

• RNA

• Proteins

• Lipids

Multiple Choice

What are the main functions of carbohydrates in cells?

• Provide immediate energy and structural support

• Store genetic information

• Catalyze chemical reactions

• Transport oxygen

Multiple Choice

Which polysaccharide is found in the cell walls of fungi?

• Cellulose

• Chitin

• Peptidoglycan

• Starch

Multiple Choice

Which part of a phospholipid is hydrophilic and which part is hydrophobic?

• The head is hydrophilic and the tails are hydrophobic.

• The tails are hydrophilic and the head is hydrophobic.

• Both the head and tails are hydrophilic.

• Both the head and tails are hydrophobic.

Multiple Select

Which of the following are involved in the synthesis of proteins in eukaryotic cells?

• Ribosomes

• DNA

• RNA

• Chloroplasts

Multiple Choice

What are the main functions of carbohydrates in cells?

• Provide immediate energy and structural support

• Store genetic information

• Act as enzymes

• Regulate cell division