unit b section1`

Question 1

the function of a stem is

Answer 1

Water and nutrients are transported between the leaves and the roots.Stems support the leaves and ensure the leaves receive adequate light.

Question 2

the function of a leaf is

Answer 2

the plant by _collection energy from the sun and changing it to chemical energy (food).take in and release oxygen and carbon dioxide. water enters and leaves the cells of the leaves through guard cells
(stoma/stomata)

Question 3

the function of a seed is

Answer 3

Seeds contain an embryo that will form a new plant . They also contain a food supply for the embryo.

Question 4

the function of a cone/flower is

Answer 4

Both cones and flowers have male and female parts for reproduction.

Question 5

osmosis

Answer 5

Water from the soil enters root cells by a process called osmosis. When the concentration of water in the soil is greater than the concentration of the roots, water moves into the root cells.

Question 6

diffusion

Answer 6

diffusion happens when there is a difference in concentration. Particles move from an area of high concentration to low concentration. Ex - food colouring in water or perfume in a room

Question 7

capillary action

Answer 7

Another process that helps water move up through a plant is called capillary action.Water particles are attracted to each other and to the sides of the tubes in the roots and stems. This attraction causes water particles to “stick” together and move up inside the plant, moving against gravity.

Question 8

transpiration

Answer 8

Water particles evaporate from the surface of the leaves and more water particles move up within the plant to take their place.
The loss of water through evaporation is called transpirtation.

Question 9

photosynthesis

Answer 9

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. and the leaves on plants will produce a green pigment called chlorophyll

Question 10

cellular respiration

Answer 10

During _cellular respiration, plants release carbon dioxide and let oxygen into their cells.

Question 11

seedling stage

Answer 11

Growth is very fast producing new leaves, roots, stem and their own _food. Still need nutrients from the soil.

Question 12

adult stage

Answer 12

A plant is an adult when it produces reproductive
structures(flower or cone).

Question 13

ovary

Answer 13

the female part of the flower.

Question 14

stigma

Answer 14

male part of the flower ans it where the pollen is deposited

Question 15

nectar