Question Detail

BIO 102 Test Compilation BIO 102 5 Objective Question
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Question

What material was used by Boysen-Jensen to separate the tip from the lower part of the coleoptile in his experiment?
Options
A Agar block or mica
Correct Answer
B Metal sheet
C Plastic wrap
D Paper
Correct Answer

Option A is the correct answer.

Detailed Explanation

Boysen-Jensen's experiment (1910) on phototropism involved placing either an agar block (permeable to chemical signals) or a thin sheet of mica (impermeable) between the tip and the lower part of a coleoptile. This demonstrated that a chemical signal produced by the tip was responsible for the bending response.

Hint

This experiment aimed to test the passage of a chemical signal while physically separating parts of the plant.

Question Info

Course: BIO 102
Topic: Test Compilation BIO 102 5
Type: Objective
Difficulty: Not specified
Question 561 of 802
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