Cell cycle/cell division

What are chromosomes made up of?

Protein

DNA

What are chromatin?

Undivided chromosomes

How many chromosomes do humans have?

46

Define Genes

DNA that contains instructions for the formation of protein

Differentiate between haploid and diploid

Haploid - one set of chromosomes

Diploid - two sets of chromosomes

Name 2 examples of haploid cells

Eggs

Sperm

Differentiate between Interphase and Mitosis

Interphase - Cell not dividing

Mitosis - Cell is dividing

Name a processes that occurs during Interphase

Chromosomes double

What are the products of mitosis?

Two genetically identical cells to their parent cells

What is the function of Mitosis in unicellular organisms

Reproduction

What is the function of Mitosis in multicellular organisms

Growth and repair

What divides the cells in animals during Mitosis?

Cleavage Furrow

What divides the cells in plants during Mitosis?

Cell plate

Name this stage of cell division and a processes that occurs during it

Prophase - Spindle fibres form in cytoplasm

Name this stage of cell division and a processes that occurs during it

Metaphase - Chromosomes line up in the equator

Name this stage of cell division and a processes that occurs during it

Anaphase - Chromosomes are pulled apart

Name this stage of cell division and a processes that occurs during it

Telophase - Nucleus is divided into two identical nuclei

Define Gametes

Sex cells

Define 2 functions of meiosis in multicellular organisms

• Variation

• Sexual reproduction

Name 2 places where meiosis occurs in the flowering plant

Anthers

Ovules

Name 2 places where meiosis occurs in humans

Testes

Ovaries

Differentiate between Meiosis and Mitosis

Mitosis - 2 daughter cells

Meiosis - 4 daughter cells

Define Canecer

Cells that have lost the ability to control the rate of mitosis

Differentiate between Benign and Malignant tumours

Benign - Non life threatening

Malignant - life threatening

Name 2 causes of cancer

• Cigarettes

• UV Radiation