Stage 4 -Tree Age Quiz (cells)

Read this article and answer the next 7 questions

What is the approximate age of the tree, left?

• 12 years

• 24 years

• 48 years

The rings are different on these two samples because.

• the trees have been cut differently

• the tree in A is older than the tree in B

• the trees have experienced different climatic conditions

• the trees have experienced the same growing conditions

Tissue from tree rings can be studied through a microscope. In this photograph, the structure labelled X represents

• a bubble

• a cell

• an element

• an organism

The most likely reason that trees grow faster during summer is that in summer

• there is more oxygen in the air

• there are more hours of sunlight

• there are less nutrients in the soil

• there are more animals living in the trees

Recent studies of Tasmanian pine trees are providing information about the

• causes of climate change

• type of pine trees in Tasmania

• climate patterns over the last 12 000 years

• differences between summer and winter growth rings

Match the following with the image

• 1

• cell membrane

• 3

• cell wall

• 2

• Cytoplasm

• 4

• Nucleus

Choose yes or no for each substance to show the chemicals that plants need to carry out respiration (drag each substance into the appropriate column)

Groups:

(a) yes

,

(b) no

• water

• oxygen

• Carbon Dioxide

• glucose