Question

F.
From each group of four words, choose the odd one out, and also name the category
to which the other three belong. The first one has been done for you.
Column 1
Odd one out
Category
Vegetative parts of the plant
1. Root, Stem, Leaf, Flower
Flower
2. Petiole, Pedicel, Leaf blade, Midrib
3. Alternate, Opposite, Reticulate, Whorled
Fibrous root, Primary root, Tertiary root,
Secondary root
5. Rachis, Leaflets, Lamina divided
completely, Veins​

Answer 1

$\star$ Odd ones:

1) Root, Stem, Leaf, Flower.

》Odd one - Flower.

• flower is the only reproductive structure,while rest are accesary organs of plant.

2) Petiole, Pedicel, Leaf blade, Midrib

》Odd one - Pedicel.

• petiole is the part by which leaf is attached with stem, midrib is the major vein of leaf, leaf blade is the flattened photosynthetic surface.
• so all are part of leaf,except pedicel which is the stalk of flower.

3) Alternate, Opposite, Reticulate, Whorled

》Odd one - Reticulate.

• alternate,opposite,whorled are the forms of arrangement of leaf on braches or stem. Also know as phyllotaxy.
• Reticulate is the type of venation, which is generally found in dicot plants.

4) Fibrous root, Primary root,Tertiary root,Secondary root

》Odd one - Fibrous root.

• primary,secondary, tertiary root are the forms of tap root system.
• while fibrous root is another system mostly found in monocots.

5) Rachis, Leaflets, Lamina dividedcompletely, Veins

》Odd one - veins

• Rachis,leaflets,lamina divided completely are the characteristics of compound pinnate leaf.

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Answer 2

Answer:

1 roots stem leaf flower

ans . flower

2petiole pedicel leafblade midrib

ans. petiole

3alternate opposite reticulate whorled

ans. reticulate