Prepare and examine the transverse section of a dicotyledonous stem (LC 2026) (Leaving Cert Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
At what point should the celery stem be cut to prepare a transverse section?
At what point should the celery stem be cut to prepare a transverse section?
At the node
At what angle should the stem be cut relative to its length?
At what angle should the stem be cut relative to its length?
Right angles
Why are the cut sections placed in a petri dish of water?
Why are the cut sections placed in a petri dish of water?
To prevent drying out
What is the purpose of adding iodine solution to the section?
What is the purpose of adding iodine solution to the section?
To highlight vascular tissue
At what angle should the coverslip be lowered onto the slide?
At what angle should the coverslip be lowered onto the slide?
45°
How are vascular bundles arranged in a dicotyledonous stem?
How are vascular bundles arranged in a dicotyledonous stem?
In a ring
What type of section is being prepared in this procedure?
What type of section is being prepared in this procedure?
Transverse section
Which plant material is used as the dicotyledonous stem specimen?
Which plant material is used as the dicotyledonous stem specimen?
Celery stem
Why must the transverse section be cut very thin?
Why must the transverse section be cut very thin?
To allow light through for microscopy
How should the coverslip be lowered onto the microscope slide?
How should the coverslip be lowered onto the microscope slide?
Slowly