Cell cycle recap

The Cell Cycle Introduction

By Elizabeth Opadiran

ALL living things must grow. They start young and grow old then die.

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Growing happens because the cells divide and divide.

Growth is controlled by chemicals in the body​

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LIFE CYCLE

Multiple Choice

WHAT TYPE OF CELL IIS THIS?

• PROKARYOTIC CELL

• THIS IS NOT A CELL

• FUNGUS

• EUKARYOTIC

Multiple Choice

What is the process of cell division that forms two nuclei?

• homologous chromosomes

• mitosis

• cell cycle

• chromosomes

Multiple Select

WHAT IS THE JOB OF THE CELL CYCLE?

• for growth or to add bulk

• to repair injured tissues

• to replace dead cells

• to provide extra cells for the body

1ST STAGE: G1

2ND STAGE: S

3RD STAGE: G2

4TH STAGE: ​M

The stages G1, S, and G2 make up interphase (I), which accounts for the span between cell divisions.

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INTERPHASE IS WHERE THE CELL GETS READY TO DIVIDE. ​

THE CELL CYCLE STAGES

Multiple Choice

Stage of the cell cycle where the cell prepares to divide.

• interphase

• prophase

• cytokinesis

• metaphase

Multiple Choice

A cell produces more cells by first copying its...

• centioles

• DNA

• chromatids

• cell membranes

Chromosomes are seen very easily during this stage.

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Humans have 23 pairs of chromosomes which means we have 46 in total.

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Men and women one have 1 difference. men have Y and women have X​

ORGANELLES AND CHROMOSOMES ARE COPIED DURING THE FIRST STAGE OF THE CELL CYCLE

Multiple Choice

Organelles and chromosomes are copied during...

• cytokinesis.

• the first stage of the eukaryotic cell cycle.

• the third stage of the eukaryotic cell cycle.

• the second stage of the eukaryotic cell cycle.

Multiple Choice

Structures of DNA visible during cell division.

• chromatin

• chromatid

• chromosomes

​https://youtu.be/RNwJbMovnVQ

​MITOSIS

Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis 1 CELL divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

DNA has been copied.

There are 2 sister chromatids (but you can not see them)​

INTERPHASE

Chromosmes get small

The spindle ​(the cell skeleton) starts to form

​The NUCLEOLUS disappears

NUCLEAR ENVELOPE breaks down​

PROPHASE

​Chromosomes go to the SPINDLE

Chromosomes attach to each end of the spindle​

METAPHASE

sister chromatids separate from each other and are pulled towards opposite ends of the cell.

ANAPHASE

The spindle breaks down

2 NUCLEI are made (one for each set of chromosomes)​

TELOPHASE

Cytokinesis, the division of the cytoplasm to form two new cells, overlaps with the final stages of mitosis.

CYTOKINESIS

Multiple Choice

In what phase of mitosis do chromosomes line up at the center of the cell?

• Telophase

• Anaphase

• Metaphase

• Interphase

Multiple Choice

In what phase of mitosis does the cell pinch to form two cells?

• Interphase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

The division of cytoplasm is called cytokenisis

• True

• False

Multiple Choice

What causes more demands on the DNA of a cell and causes trouble moving enough nutrients and waste across the cell membrane?

• The cells nucleus failing

• The cells mitochondria not working

• The cell growing too large

• The nucleolus

Multiple Choice

How many chromosomes does a human cell have?

• 42
• 46
• 24
• 64

Multiple Choice

How many daughter cells are produced in mitosis?

• 1
• 2
• 4
• 6

Multiple Choice

Which of these lists presents the stages of the cell cycle in the correct order?

• interphase, mitosis, cytokinesis
• cytokinesis, mitosis, interphase
• mitosis, interphase, cytokinesis
• interphase, cytokinesis, mitosis

Multiple Choice

Identify the stage of mitosis. 

• interphase
• prophase
• anaphase
• cytokinesis

Multiple Choice

What is the image above:

• Chromosome

• Chromotid

• Centromere

• Centriole

Multiple Choice

A chromosome is packaged

• DNA

• Protein

• Carbohydrates

• Lipids

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

What stage of mitosis is depicted here

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

What phase of mitosis is in the picture?

• Interphase

• Prophase

• Metaphase

• Anaphase

• Telophase

Thank you very much :)

grade 10 - Miss elizabeth