Science Cells Pt.2 (Sec1)

Question 1

What are the 5 main organ systems in the body?

Answer 1

Digestive, Circulatory, Respiratory, Skeletal and Muscular

Question 2

What is the cellular organisation in man?

Answer 2

Cells->Tissue->Organ->Organ Systen->Oragnism

Question 3

1. Cells + Example (Human)

Answer 3

Different types of cells have specialized functions & A heart muscle cell contracts rhythmically

Question 4

2. Tissue + Example (Human)

Answer 4

Cells of the same kind that perform a similar job are grouped together to form the tissue & Heart muscle tissue is formed by many heart cells

Question 4

3. Organ (Human)

Answer 4

An organ is formed by several tissues working together to perform a specialized function

Question 5

3. Organ Example (Human)

Answer 5

Heart organ is formed by muscle tissue, blood vessels, nerve tissue and connective tissue, It pumps oxygen rich blood to all cells in the body

Question 6

4. Organ System (Human)

Answer 6

Organs with similar roles work together to function efficiently andfor a specialised purpose to form an organ system

Question 7

4. Organ System Example (Human)

Answer 7

The heart, arteries and veins of the cardiovascular system work together to transport blood to all parts of the body

Question 8

5. Organism (Human)

Answer 8

The different organ systems work together to make up the entire body of an organism

Question 9

5. Organism Example (Human)

Answer 9

All the systems work together to enable the body to function properly

Question 10

What are the 2 main organ systems in a plant?

Answer 10

Root system and the shoot system

Question 11

Parts of the root system?

Answer 11

Main roots, branched roots and root hairs

Question 11

Parts of the shoot system

Answer 11

Leaves, stems, flower buds and flowers

Question 11

Cellular Organisation in plants?

Answer 11

Cells-Tissue-Organ-Organ System-Organism

Question 12

1. Cells (plants)

Answer 12

Guard cells allow gaseous exchange to take place

Question 13

2. Tissues (Plants)

Answer 13

Epidermal tissue is made up of many closed packed cells, including guard cells. This tissue helps prevent water loss and allows for gaseous exchange

Question 13

5. Organism (plant)

Answer 13

The shoot and root systems work together to help the plant grow and function

Question 13

3. Organ (plants)

Answer 13

The leaf in an organ is where food substances are formed. The leaf is protected from the external environment by epidermal tissue

Question 14

4. Organ system (plants)

Answer 14

The shoot system includes the organs leaves, stems, buds and flowers (flowering plant)

Question 15

Do cells work independently at cellular level?

Answer 15

No

Question 16

What do other cells work with at cellular level?

Answer 16

Other cells & tissues

Question 17

Tissue example in animals

Answer 17

Muscle Tissue

Question 17

Tissue example in plants

Answer 17

Epidermis of leaf

Question 17

What are organs?

Answer 17

A group of diffferent tissues working together for a specific function

Question 17

Organ example in animals

Answer 17

Stomach: smooth muscle tissue, connective tissueand nervous tissue

Question 17

What are tissues?

Answer 17

Cells of the same type work together to perform a specific function

Question 18

Organ example in plants

Answer 18

Leaf: epidermis, ground tissue & transporting tissue (xylem & pholem)

Question 19

What is a system?

Answer 19

A group of different organs working together for a specific function

Question 20

System example in humans

Answer 20

Digestive system

Question 21

System example in plants

Answer 21

Plant reproductive system

Question 22

What is the division of labour?

Answer 22

Different types of cells are suited to perform different functions in the living organism

Question 23

What are the advantages of the division of labour?

Answer 23

Faster, less wastage or energy, time and materials. (More efficient)

Question 24

RBC Adaptation 1

Answer 24

Contains haemoglobin that binds to oxygen reversibly to transport oxygen to other parts of the body

Question 25

RBC Adaptation 2

Answer 25

No nucleus so more haemoglobin can be packed into the cell to transport more oxygen around the body per unit time

Question 25

RBC Adaptation 4

Answer 25

Has flexible and elastic membrane which allows RBC to squeeze through narrow blood capilaries to transport oxygen to all parts of the body

Question 25

RBC Adaptation 3

Answer 25

Circular, biconcave shape increases surface area to volume ratio so that oxygen can diffuse/move into and out of the cell at a faster rate

Question 26

RHC Function

Answer 26

Absorb water and dissolved mineral salts from the soil

Question 27

RHC Adaptation 1

Answer 27

Long and narrow outgrowth to increase surface area to volume ratio for faster rate of absorption of water & dissolved mineral salts from the soil solution

Question 28

Palisade cell Function

Answer 28

Carry out photosynthesis

Question 29

Palisade cell Adaptation

Answer 29

Have numerous chloroplast that contain chlorophyll to absorb light for photosynthesis