2.1.6 Cell Division

Question 1

The cell cycle

Answer 1

Interphase and mitotic phase
G1 everything except chromosomes duplicate
G0 temporary/permanent - too differentiated or damaged DNA
S chromosomes duplicate
G2 check chromosomes replication and make repairs
Mitosis
Cytokinesis

Question 2

Mitosis

Answer 2

See vid

Question 3

Meiosis

Answer 3

See vid

Question 4

Organisation of specialised cells

Answer 4

Specialised cells-> tissues-> organs-> organ systems-> whole organism

Question 5

Erythrocytes

Answer 5

Red blood cells

Question 6

Neutrophils

Answer 6

Type of white blood cell

Grainy cytoplasm
Multi-lobed nucleus

Question 7

definition of a TISSUE

Answer 7

A collection of differentiated cells that have a specialised function

Question 8

Types of tissue

Answer 8

Nervous
Epithelial
Muscle
Connective

Squamous epithelium=flat
Ciliated epithelial=hairlike

Plants: epidermis (covered w waxy cuticle), xylem tissue, and phloem tissue

Question 9

definition of an ORGAN

Answer 9

A collection of tissues adapted to perform a particular function in an organism

Question 10

Stem cells

Answer 10

Undifferentiated

Question 11

definition of POTENCY

Answer 11

Stem cells ability to differentiate into different types of cell

Question 12

Totipotent

Answer 12

Can differentiate into any cell

Fertilised egg or zygote

Question 13

Pluripotent

Answer 13

Can differentiate into all types of tissue but can’t form a whole organism

Early embryos

Question 14

Multipotent

Answer 14

Can differentiate into a range of cells

Bone marrow