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Year 10 iGSCE - Biology

Plant development

1. Circle the name of the plant tissue that produces unspecialised cells

A) circle the name of the plant tissue that produces unspecialised cells

Auxins    Mericells      Cuttings     meristems


B) State wether the following statements are true or false

  I) the plant tissue that produces unspecialised cells can be found in roots and shoots


  ii) As the pant ages the unspecialised cells lose their ability to become any type of cell.


  iii) Any kind of plant cell can be made by the unspecialised cells


C) Give two examples of tissue that unspecialised plant cells can form.

     1. _______________________________  2. ________________________


2.  Barry is investigating the effect of rooting powder which contains plant hormones on the growth of the roots in some identical plant cuttings. His measurements are shown in the table.


A) What are plant cuttings? ________________________

B) Suggest the name of the plant hormones in the rooting powder. _________________________________________


The table shows the effect of the plant hormones concentration on root growth over a week




Concentration of plant hormones

0

0.001

0.01

0.1

1

Increase in root length

6

12

8

3

1

C) Plot a bar chart below of the increase in root length against the concentration of plant hormones.




D) What do the results suggest is the best concentration of plant hormones to encourage growth?