AOS 2 how do plant and animal systems function

Question 1

what is an organ

Answer 1

a vital piece of our body that is apart of our systems

Question 2

what is a cell

Answer 2

the basic structural and functional unit of all living organisms

Question 3

what is a tissue

Answer 3

a group of cells of similar structure and function working together

Question 4

what is an organ

Answer 4

two or more tissues preforming a specific function

Question 5

what is a system

Answer 5

a network of organs and tissues working together

Question 6

what are the three types of permanent tissues found in plants?

Answer 6

Ground tissue
Vascular tissue
Derminal tissue

Question 7

explain ground tissue

Answer 7

provides support and storage for plants. Where photosynthesis occurs

Question 8

explain vascular tissue

Answer 8

tissue such as xylem and phloem

Question 9

explain derminal tissue

Answer 9

minimises water loss, usually found on leaf surface

Question 10

what are three tissues found in the human body

Answer 10

epithelial tissue
muscle tissue
connective tissue

Question 11

what is epithelial tissue?

Answer 11

tissue that covers flat surfaces e.g skin+lining

Question 12

what is muscle tissue

Answer 12

tissue that contracts for movement e.g heart and gut muscles

Question 13

what is connective tissue

Answer 13

tissue that binds to the body structure e.g bone Cartlidge and adipose tissue

Question 14

what are the basic needs that organisms must meet

Answer 14

-Energy and nutrients need to be readily available
-waste removal
-capable of defending itself against danger

Question 15

what are the two types of plants?

Answer 15

vascular plants
non vascular plants

Question 16

what is a vascular plant?

Answer 16

a plant that contains vascular tissue, which is responsible for transporting water and minerals throughout

Question 17

what is a non vascular plant?

Answer 17

a plant that only requires simplified tissues to function

Question 18

what are the three primary organs for a vascular plant

Answer 18

leaves
stem
roots

Question 19

examples of vascular plants

Answer 19

flowering plants, shurbs, conifers or pines and ferns

Question 20

what are the two types of systems for plants?

Answer 20

Root system
shoot system

Question 21

what is the root system

Answer 21

the part of the plant that lie below the surface of the soil (the roots) and are responsible for providing a constant supply of water and minerals to the stem and leaves

Question 22

what is the shoot system

Answer 22

the parts of the plant that are above the ground and responsible for exchanging oxygen and carbon dioxide with the atmosphere and for carrying out photosynthesis

Question 23

list the two parts of the shoot system and their function

Answer 23

leaves-photosynthesis
stems-structural support and transport of substances

Question 24

list the two parts of the root system and their functions

Answer 24

roots(primary)- grow downwards for strength and anchoragee, source water and store food

roots (secondary) branch to the side, increasing the surface area for absorption of water and minerals

Question 25

what is Xylem

Answer 25

responsible for transporting water and dissolved minerals from the roots to the rest of the plant (water) (up plant)

Question 26

What is Phloem?

Answer 26

Responsible for transporting sugar throughout the plant (food) (both ways(up and down))

Question 27

explain a extracellular pathway

Answer 27

water diffuses into the roots in the gaps between cells

Question 28

explain a cytoplasmic pathway

Answer 28

mineral ions (and small amounts of water) either passively diffuse into the cytoplasm or are taken up via active transport in the root hair cells

Question 29

what is transpiration?

Answer 29

the evaporation of water from leaves and movement of liquids up the xylem

Question 30

what are the factors effecting transpiration

Answer 30

temperature-higher temp= more water evaporation

light-high light= stomata increase amount of co2 absorbed, increasing amount of water lost to transpiration

humidity- as humidity increases=less water evaporates into air

wind- windy day=layer of water on leaf blown away

water availability- when high availability then roots absorb more therefor plant increase rate of transpiration