Cell Cycle and Cancer Concepts

The video tutorial covers the cell cycle, differentiation, stem cells, and cancer. It explains how a fertilized egg develops into an organism through cell division and differentiation. The cell cycle's phases, including interphase, mitosis, and cytokinesis, are detailed. The tutorial also discusses stem cells, their types, and their role in differentiation. It highlights the regulation of the cell cycle, the importance of apoptosis, and how cancer results from uncontrolled cell division.

What is the initial stage of development after a sperm fertilizes an egg?

• Fetus

• Blastocyst

• Zygote

• Embryo

What process allows identical cells to develop into specialized cells like skin and muscle cells?

• Replication

• Meiosis

• Differentiation

• Mitosis

Which of the following is NOT an organ system?

• Skeletal system

• Digestive system

• Chromosomal system

• Endocrine system

What are tissues composed of?

• Organ systems

• Different types of cells

• Identical cells

• Chromosomes

What type of stem cells can differentiate into any type of specialized cell?

• Bone marrow stem cells

• Cartilage stem cells

• Adult stem cells

• Embryonic stem cells

What is the main purpose of the S phase in interphase?

• Protein synthesis

• Cell growth

• Organelle production

• DNA replication

During which phase of mitosis do chromosomes line up in the middle of the cell?

• Telophase

• Anaphase

• Prophase

• Metaphase

What is the role of spindle fibers during mitosis?

• Condense chromosomes

• Dissolve the nuclear membrane

• Separate sister chromatids

• Form the cleavage furrow

What is apoptosis?

• Uncontrolled cell division

• Cell growth

• Programmed cell death

• DNA replication

What is a common cause of cancer?

• Exposure to carcinogens

• Excessive cell growth

• Programmed cell death

• Balanced cell division