Cell Cycle and Cancer Concepts

Which shows the correct order of levels of organization from smallest to largest?

• Cell → Tissue → Organ → Organ System → Organism

• Tissue → Cell → Organ → Organism → Organ System

• Cell → Organ → Tissue → Organism → Organ System

• Organism → Organ System → Organ → Tissue → Cell

Which statement accurately describes a core principle of modern cell theory?

• All living things are composed of cells.

• Cells can spontaneously generate from non-living matter.

• The cell is the largest unit of life.

• Only animals are made of cells.

Why is a multicellular organism larger now than when it was younger?

• Individual cells grow larger indefinitely.

• Cells divide to produce more cells.

• Organisms absorb more non-living material.

• Cells fuse together to form bigger cells.

What makes cancer cells harmful to the body?

• They stop dividing when needed

• They follow normal cell cycle rules

• They divide uncontrollably and steal nutrients

• They always remain anchored in one location

What is a primary characteristic of cancer cells?

• They divide at a slower rate than healthy cells.

• They are unable to communicate with other cells.

• They undergo uncontrolled and frequent division.

• They always remain anchored in their original location.

Which of the following factors can increase the risk of cells becoming cancerous?

• Regular exercise

• Exposure to radiation

• A balanced diet

• Adequate sleep

During which phase of the cell cycle do cells spend the majority of their time performing normal functions, growing, and replicating DNA?

• Mitosis

• Cytokinesis

• Interphase

• M phase

Which of the following phases are collectively known as Interphase in the cell cycle?

• G1, S, M

• G1, G2, M

• G1, S, G2

• S, G2, M

What is the primary event that occurs during the S phase of the cell cycle?

• Cell growth and preparation for division

• Replication of DNA

• Division of the nucleus

• Formation of new organelles

What does the G1 checkpoint primarily assess before a cell proceeds to the S phase?

• Chromosome alignment and spindle attachment

• DNA replication accuracy

• Cell growth, DNA damage, and resource availability

• Organelle duplication