Biology Cell Cycle

Introduction to The Cell Cycle

This is a real cell!!!----->

Multiple Choice

All living things are made up of...

• At least one cell

• Two Cells

• Just needs atoms

• No cells required!

Review:

• According to the cell theory:

• All living things are made up of at least one cell

• All cells come from pre-existing cells

Multiple Choice

REVIEW: Who stated all cells come from pre-existing cells?

• Schleiden

• Leeuwenhoek

• Virchow

• Schwann

What we know about Living things:

• Made of at least one cell

• Able to GROW, REPAIR and DEVELOP

• Has Genetic Material

Multiple Choice

What is known as the "brain" of the cell due to its ability to control the cell's actions?

• Mitochondria

• Nucleus

• Cell Membrane

• Vacuole

Why is the Nucleus so "Controlling"?

• Because it contains DNA (our genetic material)!!

• If the nucleus is a brain, then the DNA is the knowledge we store in our brain

• This knowledge allows the cell to act

• It also allows the cell to grow, repair, and develop

How does DNA look before cell division?

• Compare your tangled headphones to DNA

• DNA is normally stringy before cell division

• We call DNA in this form: CHROMATIN

• 
  

How does DNA look during cell division?

• If a cell is to divide it needs to be organized

• We will learn about DNA's form called CHROMOSOMES

• This X shape will allow equal amounts of DNA to be passed to the "daughter" cells

• 
  

Multiple Choice

X-shaped Structures of DNA during cell division.

• chromatin

• chromatid

• chromosomes

Multiple Choice

What is the structure in which DNA, hereditary material that controls cell activities, can be found.

• chromatids

• centromere

• chromosome

• mitosis

Multiple Choice

What are the life stages of a cell called?

• cell cycle

• mitosis

• cytokinesis

• cell plate

Multiple Choice

Cells need to produce new cells in order to...

• replace cells that have died.

• create new chromosomes.

• obtain energy from sunlight.

• release energy from food.

Multiple Choice

The process of a cell growing, preparing for division, and dividing into 2 new cells is called

• mitosis

• cell cycle

• replication

Multiple Choice

The three stages of the cell cycle are __________, mitosis, and

cytokinesis.

• interphase

• anaphase

• metaphase

• prophase

Multiple Choice

Which of the following is NOT a function of cell division?

• for growth or to add bulk

• to repair injured tissues

• to replace dead cells

• to provide extra cells for the body

Multiple Choice

Which of the following is NOT a function of cell division?

• for growth or to add bulk

• to repair injured tissues

• to replace dead cells

• to provide extra cells for the body