topic 1 Flashcards
1
Q
What process do plants use to move these minerals ions into root cells?
A
active transport
2
Q
Describe how water moves from roots to the leaves
A
by the transpiration stream in the xylem
3
Q
how is an advantage to a plant if they have fewer stomata on the upper surface of the leaf
A
less water lost so it does not wilt
4
Q
why do all toys that have been in contact with the TM virus need washing
A
to kill the virus
5
Q
Scientists produced a single plant that contained a TMV-resistant gene. Suggest how scientists can use this plant to produce many plants with the TMV-resistant gene.
A
take (stem) cells from meristem or tissue culture
6
Q
Describe how you would test for the presence of glucose in fruit.
A
- heat mixture and add a few drops of Benedict’s solution
- glucose turns solution blue to orange
7
Q
Explain why plants with TMV have stunted growth.(4)
A
- less photosynthesis because of lack of chlorophyll
- therefore less glucose made so
- less energy released for growth
- because glucose is needed for respiration
8
Q
A
