Core practical: investigating mineral deficiency

Overview

Recall questions on preparing deficient culture solutions, the variables controlled, and the observations recorded.

What you need to know

Answer each one before you reveal it.

Questions from this subtopic

Each one with the model answer underneath.

1. 1

   In a mineral deficiency investigation, what type of culture solution is used as a control?

   Model answer

   A complete nutrient solution containing all required ions.

2. 2

   How are deficient solutions prepared for investigating plant mineral deficiencies?

   Model answer

   Each deficient solution lacks one specific ion while containing all other required ions.

3. 3

   What observations should be recorded during a mineral deficiency investigation?

   Model answer

   Deficiency symptoms over time, comparing growth and appearance to control plants.

4. 4

   Why must culture solutions be aerated in mineral deficiency investigations?

   Model answer

   To provide oxygen for root respiration.

5. 5

   Why should containers be opaque or wrapped in mineral deficiency investigations?

   Model answer

   To prevent algal growth which would compete for minerals.

6. 6

   What type of seedlings should be used when comparing mineral deficiency treatments?

   Model answer

   Seedlings of the same species and age.

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.