Dual Credit Biology Practice Final, Part 1

Which of the following is NOT a macromolecule found in living organisms?

• Carbohydrate

• Lipid

• Amino Acid

• Nitrogen Gas

Answer explanation

The correct choice is Nitrogen Gas because it is not a macromolecule found in living organisms, unlike Carbohydrate, Lipid, and Amino Acid.

Which organelle is responsible for ATP production through cellular respiration?

• Golgi Apparatus

• Mitochondrion

• Endoplasmic Reticulum

• Nucleus

Answer explanation

The organelle responsible for ATP production through cellular respiration is the Mitochondrion.

Tags

NGSS.HS-LS1-7

What is the primary function of enzymes in biochemical reactions?

• Increase activation energy

• Slow down the reaction rate

• Lower activation energy

• Prevent substrate binding

Answer explanation

The primary function of enzymes in biochemical reactions is to lower activation energy, facilitating the reaction process.

Which biomolecule serves as the main component of cell membranes?

• DNA

• RNA

• Protein

• Phospholipid

Answer explanation

Phospholipids serve as the main component of cell membranes.

Which of the following is NOT a major function of proteins in living organisms?

• Structural support

• Enzymatic catalysis

• Long-term energy storage

• Transport of molecules

Answer explanation

Long-term energy storage is NOT a major function of proteins in living organisms. Proteins primarily function in structural support, enzymatic catalysis, and transport of molecules.

What is the basic structural unit of carbohydrates?

• Amino Acid

• Nucleotide

• Monosaccharide

• Fatty Acid

Answer explanation

The basic structural unit of carbohydrates is a Monosaccharide, which is a simple sugar molecule. Amino acids, nucleotides, and fatty acids are not the basic structural units of carbohydrates.

Which of the following elements is NOT commonly found in carbohydrates?

• Carbon

• Hydrogen

• Nitrogen

• Oxygen

Answer explanation

Nitrogen is NOT commonly found in carbohydrates, which are primarily composed of carbon, hydrogen, and oxygen.

What is the process by which a protein loses its structure and function due to heat or pH changes?

• Hydrolysis

• Denaturation

• Transcription

• Replication

Answer explanation

Denaturation is the process by which a protein loses its structure and function due to heat or pH changes.

Where does the Calvin Cycle, a part of photosynthesis, take place in a plant cell?

• Mitochondria

• Chloroplast

• Nucleus

• Cell Wall

Answer explanation

The Calvin Cycle, a part of photosynthesis, takes place in the Chloroplast of a plant cell.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which molecule serves as the universal energy currency in cells?

• ADP

• ATP

• DNA

• RNA

Answer explanation

ATP serves as the universal energy currency in cells, providing energy for various cellular processes.

Tags

NGSS.HS-LS1-7