Topik 1

Question 1

List the point of cell theory

Answer 1

1.All living things are composed one/ more cells

2. Cells are the basic units of structure and function in an organism
3. Cells come from reproductive of existing cells

Question 2

Describe the function of plasma membrane

Answer 2

Control substances pass into or out of the cell- selectively permeable

Question 3

What’s the components of plasma membrane?

Answer 3

Phospholipid, membrane protein, other materials

Question 4

What’s the function of protein at plasma membranes?

Answer 4

Allow substances to cross membrane

Question 5

What is cytoplasm?

Answer 5

Material outside nucleus and inside membrane plasma

Question 6

What’s the components of cytoplasm?

Answer 6

Cytosol and organells

Question 7

What is mitochondria?

Answer 7

Sites of mechanical reaction and have their own DNA

Question 8

Describe smooth endoplasm and rough endoplasm

Answer 8

Smooth endoplasm- produce steroids (lipid), breakdown toxins in liver, breakdown and synthesis cholesterol

Rough endoplasm- have ribosomes to produce proteins

Question 9

Describe ribosomes

Answer 9

Don’t have membrane, synthesis protein

Question 10

The function of peroxisome

Answer 10

Detoxify harmful substances, breakdown reactive chemical

Question 11

The function of cytoskeleton

Answer 11

Support structure of cell, participates in movement or organelles

Question 12

The components of cytoskeleton

Answer 12

Microfilaments; threads of protein actin
Microtubules; larger hollow tubes

Question 13

The function of nucleus?

Answer 13

Control center of the cell

Question 14

What’s the contains of nucleus?

Answer 14

DNA, nucleolus (where ribosomes synthesized)

Question 15

Describes 3 regions of nucleus

Answer 15

Nuclear membrane: barrier of nucleus, have nuclear pores- allow for exchange (cytoplasm=nucleus)

Nucleolus; contains one/more nucleoli , sites of ribosomes production

Chromatin; contains DNA/ protein, scattered throughout the nucleus

Question 16

2 types of cell division

Answer 16

Mitosis and meiosis

Question 17

Describe mitosis and meiosis

Answer 17

Mitosis; somatic cell, for growth or repair, diploid(46)

Meiosis; reproductive cell, haploid (23)

Question 18

List the phase of cell division

Answer 18

Prophase, metaphase, anaphase, telophase

Question 19

Classification of tissue

Answer 19

Epithelial tissue, connective tissue, muscle tissue, nervous tissue

Question 20

Function of epithelial tissue

Answer 20

Protection, absorption, secretion, sensation

Question 21

Function of connective tissue

Answer 21

Support and protect organ
Exp: bone adipose (flat), blood, cartilage

Question 22

Function muscle tissue

Answer 22

Movement
Exp: skeletal, cardiac, smooth

Question 23

Function nervous tissue

Answer 23

Communication, coordination of bodily function