The given diagram refers to a T. S. of anther. Identify A to E respectively

Sporogenous tissue, tapetum, epidermis, middle layer, endothecium

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Sporogenous tissue, epidermis, tapetum, middle layer, endothecium

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Sporogenous tissue, epidermis, middle layer, tapetum, endothecium

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Sporogenous tissue, tapetum, middle layer, epidermis, endothecium

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Solution

The correct option is A
Sporogenous tissue, tapetum, epidermis, middle layer, endothecium

In the given figure of T.S of anther, the structure marked as A, B, C, D and E are respectively sporogenous tissue, tapetum, epidermis, middle layer and endothecium.

Sporogenous tissue is a group of compactly arranged homogenous cells. It is irregular in shape with abundant food reserves.

Tapetum is a layer of nutritive cells found within the sporangium, particularly within the anther, of flowering plants.

Epidermis is the common anther covering.

Cells of middle layers degenerate to provide nourishment to the growing microspore mother cells.

Endothecium helps in dehiscence.

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Similar questions

Match the following.

Column - I Column - II
(i). Epidermis (a). Nutritive layer
(ii). Endothecium (b). Dehiscence of anther
(iii). Tapetum (c). Protective layer
(iv). Middle layers (d). Short-lived layer

Q. Assertion :A typical microsporangium of angiosperms is generally surrounded by four wall layers- epidermis, endothecium, middle layers and tapetum. Reason: The outer three wall layers perform the function of protection and help in dehiscence of anther to release the pollen.

Match the following.

\begin{matrix} C o l u m n - I & C o l u m n - I I (i) . E p i d e r m i s & (a) . N u t r i t i v e l a y e r (i i) . E n d o t h e c i u m & (b) . D e h i s c e n c e o f a n t h e r (i i i) . T a p e t u m & (c) . P r o t e c t i v e l a y e r (i v) . M i d d l e l a y e r s & (d) . S h o r t - l i v e d l a y e r \end{matrix}

Q. Match the following:

\begin{matrix} i. Endothecium & 1. Microsporophyll in angiosperm ii. Tapetum & 2. Protective layer in microsporangia iii. Sporogenous tissue & 3. Nourishes male gametophyte iv. Stamen & 4. Develops microspores \end{matrix}

Q. During the development of anther wall layers, if inner secondary parietal layer differentiates into tapetum and the outer secondary parietal layer divides producing endothecium and middle layer, the development of anther wall layers would confirm to .................

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