Biologie samenvatting

Question 1

Organ

Answer 1

a part of an organism that performs a specific fucntion

Question 2

organs system

Answer 2

a group of organs that work together to perform a specific function

Question 3

tap root

Answer 3

the root of a plant grows downwards

Question 4

lateral root

Answer 4

branches that split off from the tap root

Question 5

root hairs

Answer 5

thin protrusions often at the ends of roots

Question 6

root system

Answer 6

all the roots of a plant

Question 7

minerals

Answer 7

salts dissolved in the water in the soil that plants need for staying alive

Question 8

food reserves

Answer 8

substances that an organism does not need immediately and saves for later use

Question 9

stem

Answer 9

the part of a plant between the roots and the leaves

Question 10

woody plants

Answer 10

plants with stems that are kept sturdy because they contain lots of wood

Question 11

herbaceous plants

Answer 11

plants with stems that are only sturdy when they can absorb enough water

Question 12

leaf stalk

Answer 12

the part of a leaf where it is attached to the stem

Question 13

blade

Answer 13

the flat part of a leaf

Question 14

veins

Answer 14

structures in a leaf that provide rigidity and transport water and other substances

Question 15

lamina

Answer 15

the material in a leaf in between the veins

Question 16

vessels

Answer 16

long, thin tubes in the stem of a plant that transport water, minerals and glucose

Question 17

vascular bundle

Answer 17

a group of vessels that are next to each other in a plant

Question 18

vascular system

Answer 18

all the vessels in a plant

Question 19

cells

Answer 19

the building blocks of an organism

Question 20

tissue

Answer 20

a group of cells with the same shape and function

Question 21

extracellular material

Answer 21

a liquid or solid substance in between the cells

Question 22

epidermis

Answer 22

a layer of cells on the outside of a leaf that protects it against external influences

Question 23

stomata

Answer 23

smal openings in the leaf of a plant that take carbon dioxide out of the air and give off oxygen

Question 24

cambium

Answer 24

a layer of cells just inside of the bark of a tree where new wood is formed

Question 25

annual ring

Answer 25

all the wood in a tree trunk that is formed in a single year