Ribosomes and Their Functions Quiz

Which subunit of the ribosome is responsible for joining amino acids together?

• Small subunit

• Medium subunit

• Large subunit

• Regulatory subunit

Why is it important to distinguish between ribosomes in eukaryotic and prokaryotic cells when developing antibiotics?

• Antibiotics can target the differences in ribosome structure to selectively inhibit bacterial protein synthesis.

• Antibiotics work equally well on both types of ribosomes.

• Eukaryotic ribosomes are immune to antibiotics.

• Prokaryotic ribosomes do not synthesize proteins.

What is the function of the nuclear envelope in the structure of the nucleus?

• A semi-permeable double membrane that surrounds the nucleus

• A single membrane that surrounds the cytoplasm

• A structure that produces energy for the cell

• A protein that assembles ribosomes

Which of the following best describes the function of the nucleus in a cell?

• It contains DNA coiled around chromatin into chromosomes and controls cellular processes such as gene expression, mRNA transcription, mitosis, and semiconservative replication.

• It produces energy for the cell through cellular respiration.

• It synthesizes proteins and packages them for export.

• It breaks down waste materials and cellular debris.

What is the role of gene expression in the function of the nucleus?

• It determines cell specialization and is involved in processes like mRNA transcription and mitosis.

• It provides structural support to the cell.

• It transports nutrients across the cell membrane.

• It stores energy in the form of ATP.

Which of the following statements correctly compares ribosomes in eukaryotic and prokaryotic cells?

• Eukaryotic ribosomes are smaller than prokaryotic ribosomes.

• Prokaryotic ribosomes are larger than eukaryotic ribosomes.

• Eukaryotic ribosomes are 80S, while prokaryotic ribosomes are 70S.

• Both eukaryotic and prokaryotic ribosomes are 80S.

What is the primary function of mitochondria in a cell?

• Site of aerobic respiration to produce ATP.

• Site of photosynthesis to convert solar energy to chemical energy.

• Storage of genetic information.

• Synthesis of proteins.

Compare the roles of mitochondria and chloroplasts in energy transformation within a cell.

• Mitochondria produce ATP through aerobic respiration, while chloroplasts convert solar energy to chemical energy via photosynthesis.

• Both mitochondria and chloroplasts store genetic material.

• Mitochondria synthesize proteins, while chloroplasts break down waste.

• Both mitochondria and chloroplasts are involved in cell division.

Which type of enzymes are found in lysosomes and are responsible for digestion?

• Hydrolase enzymes

• Ligase enzymes

• Polymerase enzymes

• Kinase enzymes

What is the role of the glycoprotein coat in lysosomes?

• To protect the cell interior

• To transport nutrients

• To synthesize proteins

• To store energy