What would be true for both companion cells and albuminous cells?
I. They are derived from same mother cell as their associated cells.
II. Both contain a nucleus.
III. Both die when their associated cells die.

1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III

The given diagram shows the central core of root in a certain plant. P is phloem and protoxylem elements and V is metaxylem. What is correct for structures indicated by arrows?

1. They show aerenchyma essential for aeration of root cells
2. They show cells in the roots that contain chloroplast
3. They show cells lack the characteristic radial and inner tangential wall thickening which is common to endodermal cells
4. They show cells that store resins and oils in the roots

In the transverse section of a monocot root given below, identify A, B, C and D:

Identify the correct statement regarding A and B [types of concentric vascular bundles] in the given diagram:

1. A is Amphivasal and found in Dracaena while B is amphicribal and found in Selaginella
2. A is Amphivasal and found in Selaginella while B is amphicribal and found in Dracaena
3. A is Amphicribal and found in Dracaena while B is amphivasal and found in Selaginella
4. A is Amphicribal and found in Selaginella while B is amphivasal and found in Dracaena

Identify the option where the difference between the vascular bundles of Dicot and Monocot stem is not correctly mentioned:

Identify the option where the difference between the anantomy of Dicot and Monocot root is not correctly mentioned:

In the given diagram:

1. the lighter outer area is the heart wood or alburnum and is mechanically strong, resistant to decay, and less easily penetrated by wood-preservative chemicals

2. the lighter outer area is the Sapwood or alburnum and is involved in transport of water and minerals to the crown of the tree

3. the darker inner area is the heart wood or duramen and is involved in transport of water and minerals to the crown of the tree

4. the darker inner area is the sap wood or duramen and is mechanically strong, resistant to decay, and less easily penetrated by wood-preservative chemicals

The following diagram shows the anatomy of the root of an epiphytic orchid. The function of the structure marked X is:

1. Photosynthesis
2. Storage
3. Protective
4. Repair and healing

The balloon like structures seen in vessels in the given diagram are called as:

1. Tyloses
2. Hydathodes
3. P proteins
4. Lenticells

In the given diagram showing the anatomy of a tree trunk, what are A, B, C and D respectively?

1. Secondary xylem, Secondary phloem, Periderm, Bark
2. Secondary phloem, Secondary xylem, Periderm, Bark
3. Secondary xylem, Secondary phloem, Phellem, Periderm
4. Secondary phloem, Secondary xylem, Phellem, Periderm