Text Book Back Questions and Answers - Chapter 3 Vegetative Morphology 11th Biology Botany Guide Samacheer Kalvi Solutions - SaraNextGen [2024-2025]

Updated By SaraNextGen

On April 24, 2024, 11:35 AM

Vegetative Morphology
Text Book Back Questions and Answers
Choose the correct answer
Question 1.
Which of the following k polycarpic plant?
(a) Mangifera
(b) Bambusa
(c) Musa
(d) Agave
Answer:
(a) Mangifera
Question 2.
Roots are
(a) descending. negatively geotrophic, positively phototrophic
(b) descending, positively geotrophic, negatively phototrophic
(c) ascending, positively geotrophic, negatively phototrophic
(d) ascending, negatively geotrophic, positively phototrophic
Answer:
(b) descending, positively geotrophic, negatively pholotrophic

Question 3.
Bryophyllum and Dioscorea are example for
(a) foliar bud, apical bud
(b) foliar bud, cauline bud
(c) cauline bud, apical bud
(d) cauline bud, foliar bud
Answer:
(b) foliar bud, cauline bud
Question 4.
Which of the following is correct statement?
(a) In Pisum sativum leaflets modified into tendrils
(b) In Atalantia terminal bud is modified into thorns
(c) In Nepenthes midrib is modified into lid
(d) In Smilax inflorescence axis is modified into tendrils
Answer:
(b) In Pisum sativum leaflets modified into tendrils

Question 5.
Select the mismatch pair.

Answer:
(d) Allamanda - (iv) Ternate phyllotaxy
Question 6.
Draw and label the parts of regions of root.
Answer:
The parts of regions of root:

Question 7.
Write the similarities and differences between
1. Avicennia and Trapa
2. Radical buds and foliar buds
3. Phylloclade and cladode
Answer:
1. Avicennia and Trapa

2. Radical buds and foliar buds

3. Phylloclade and cladode

Question 8.
How root climbers differ from stem climbers?
Answer:
Root climbers:
1. Plants climbing with the help of adventitious roots (arise from nodes)
2. Example: Piper betel
Stem climbers (twiners):
1. These climbers lack specialised structure for climbing and the stem itself coils around the support.
2. Example: Ipomoea
Question 9.
Compare sympodial branching with monopodial branching.
Answer:
Sympodial branching:
The terminal bud cease to grow after a period of growth and the further growth is taken care by successive or several lateral meristem or buds. This type of growth is also known as sympodial branching. Example: Cycas.

Monopodial branching:
The terminal bud grows uninterrupted and produce several lateral branches. This type of growth is also known as monopodial branching. Example: Polyalthia.
Question 10.
Compare pinnate unicostate venation and palmate multicostate venation.
Answer:
Pinnate Unicostate Venation and Palmate Multicostate Venation:
1. Pinnate unicostate venation: In pinnate unicostate there is only one prominent midrib.
2. Palmate multicostate venation: In palmate multicostate there are many midribs running parallel to each other.
Text Book Activities Solved
Question 1.
Collection of medicines prepared from root, stem, leaf of organic plants.
Answer:
Medicines Prepared From Root, Stem, Leaf Of Organic Plants:

Question 3.
Growing micro greens In class room - project work. (Green seed sprouts)
Answer:
Definition: Micro green are miniature plants of greens, herbs or vegetables.
They arc rich nutrient source and also added as flavouring agent in food.
Growing micro greens in classroom:
- Step 1. Take a shallow tray.
- Step 2. Place a inch of organic potting soil in the bottom of tray.
- Step 3. Scatter the seeds (celery, lettuce, etc.) over the soil surface.
- Step 4. Sprinkle some water. Cover the seeds with a thin layer of soil.
- Step 5. Place the whole setup near the lighted window.
- Step 6. Within a day or two, seeds with germinate.
- Step 7. Maintain the moisture of soil. Greens can be harvested within 2 3 weeks.