Question 1:
A student conducted an experiment to study the effect of nutrient deficiency on the growth of pea seedling.
Diagram shows the result obtained after five days.
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2020/04/Picture8.png)
(a) Based on the Diagram, state one observation on the root of the seedling in culture solution without phosphorus. [1 mark]
(b) State one hypothesis for this experiment. [1 mark]
(c) State one constant variable in this experiment. [1 mark]
(d) Mark (√) in the boxed provided the element which is in the same group as phosphorus. [1 mark]
![](http://spmsains.blog.onlinetuition.com.my/wp-content/uploads/sites/15/2020/04/Picture10-300x85.png)
(e) Based on this experiment, state the operational definition for complete culture solution. [1 mark]
Answer:
(a)
Growth of the root is retarded.
(b)
A complete culture solution is necessary for the fertile growth of the seedlings.
(c)
1. Volume of culture solution,
2. Initial stage of growth of the seedlings
(Any one)
(d)
![](http://spmsains.blog.onlinetuition.com.my/wp-content/uploads/sites/15/2020/04/Picture11-300x85.png)
(e)
A complete culture solution is defined operationally as a solution which contains all the nutrients needed for the fertile growth of plants .
A student conducted an experiment to study the effect of nutrient deficiency on the growth of pea seedling.
Diagram shows the result obtained after five days.
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2020/04/Picture8.png)
(a) Based on the Diagram, state one observation on the root of the seedling in culture solution without phosphorus. [1 mark]
(b) State one hypothesis for this experiment. [1 mark]
(c) State one constant variable in this experiment. [1 mark]
(d) Mark (√) in the boxed provided the element which is in the same group as phosphorus. [1 mark]
![](http://spmsains.blog.onlinetuition.com.my/wp-content/uploads/sites/15/2020/04/Picture10-300x85.png)
(e) Based on this experiment, state the operational definition for complete culture solution. [1 mark]
Answer:
(a)
Growth of the root is retarded.
(b)
A complete culture solution is necessary for the fertile growth of the seedlings.
(c)
1. Volume of culture solution,
2. Initial stage of growth of the seedlings
(Any one)
(d)
![](http://spmsains.blog.onlinetuition.com.my/wp-content/uploads/sites/15/2020/04/Picture11-300x85.png)
(e)
A complete culture solution is defined operationally as a solution which contains all the nutrients needed for the fertile growth of plants .