Biological Molecules and Their Functions

What are the four main types of biological molecules essential for life?

• Sugars, fats, salts, and water

• Nucleic acids, proteins, lipids, and carbohydrates

• Vitamins, minerals, enzymes, and hormones

• DNA, RNA, amino acids, and glucose

What are monomers in the context of biological molecules?

• Large, complex molecules

• Small building blocks that make up larger molecules

• Energy storage units

• Genetic information carriers

Which characteristic is a defining feature of lipids, as mentioned in the video?

• They are made of nucleotides.

• They are generally non-polar.

• They carry genetic information.

• They are primarily used for structural support.

What is the main role of nucleic acids like DNA and RNA in living organisms?

• Providing immediate energy.

• Carrying genetic material.

• Forming cell membranes.

• Building muscle tissue.

What are the individual units that link together to form proteins?

• Nucleotides

• Sugars

• Amino acids

• Fatty acids

What are the basic monomer units of carbohydrates?

• Amino acids

• Nucleotides

• Sugars

• Lipids

What molecule is removed when two monomers are joined together to form a polymer through dehydration synthesis?

• Carbon dioxide

• Oxygen

• Water

• Hydrogen peroxide

What is the process called when polymers are broken down into monomers by adding water?

• Dehydration synthesis

• Photosynthesis

• Hydrolysis

• Respiration

What are the three main components that make up a nucleotide?

• Phosphate, sugar, and base

• Amino acid, fatty acid, and glucose

• Protein, lipid, and carbohydrate

• Carbon, hydrogen, and oxygen

How are the two strands of a DNA molecule oriented relative to each other?

• They run in the same direction, parallel to each other.

• They run in opposite directions, antiparallel to each other.

• One strand is circular, and the other is linear.

• They are connected at only one end.