Scutellum

Question 1

What is the scutellum?

Answer 1

A structure that separates the endosperm from the embryo

The term ‘scutellum’ is derived from Latin ‘scutella’ meaning ‘small shield’.

Question 2

What type of cells make up the scutellum?

Answer 2

A thin layer of cells

The scutellum is connected to the embryo by vascular tissue.

Question 3

What is the primary function of the scutellum?

Answer 3

Facilitates the movement of molecules, such as nutrients, between the embryo and the endosperm

This movement occurs in both directions.

Question 4

What hormone does the scutellum synthesize?

Answer 4

Gibberellic acid (GA)

GA synthesis by the scutellum initiates enzyme production in the aleurone layer.

Question 5

How does the amount of GA produced by the scutellum compare to that produced by the embryo?

Answer 5

Minimal compared to that produced by the embryo

The embryo is the primary source of GA.

Question 6

Is there debate about the scutellum’s ability to produce enzymes?

Answer 6

Yes

If the scutellum does produce enzymes, its contribution is much lower than that of the aleurone layer.

Question 7

Fill in the blank: The scutellum is connected to the embryo by _______.

Answer 7

vascular tissue

Question 8

True or False: The scutellum contributes significantly to overall enzyme production.

Answer 8

False

The aleurone layer contributes more significantly to enzyme production.