Text Book Back Questions and Answers - Chapter 5 Taxonomy and Systematic Botany 11th Biology Botany Guide Samacheer Kalvi Solutions - SaraNextGen [2024-2025]

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On April 24, 2024, 11:35 AM

Taxonomy and Systematic Botany
Text Book Back Questions and Answers
I. Multiple Choice Questions
Choose the correct answer
Question 1.
Specimen derived from non - original collection serves as the nomenclatural type, when original specimen is missing. It is known as
(a) Holotype
(b) Neotype
(c) Isotype
(d) Paratype
Answer:
(b) Neotype
Question 2.
Phylogenetic classification is the most favoured classification because it reflects
(a) Comparative Anatomy
(b) Number of flowers produced
(c) Comparative cytology
(d) Evolutionary relationships
Answer:
(d) Evolutionary relationships
Question 3.
The taxonomy which involves the similarities and dissimilarities among the immune system of different taxa is termed as
(a) Chemotaxonomy
(b) Molecular systematics
(c) Serotaxonomy
(d) Numerical taxonomy
Answer:

(c) Serotaxonomy

Question 4.
Which of the following is a flowering plant with nodules containing filamentous nitrogen - fixing micro - organisms?
(a) Crotalaria juncea
(b) Cycas revoluta
(c) Cicer arietinum
(d) Casuarina equisetifolia
Answer:
(a) Crotalaria juncea
Question 5.
Flowers are zygomorphic in
(a) Ceropegia
(b) Thevetia
(c) Datura
(d) Solarium
Answer:
(a) Ceropegia
Question 6.
What is the role of national gardens in conserving biodiversity - discuss.
Answer:
Botanical Gardens plays the following important roles.
1. Gardens with aesthetic value which attract a large number of visitors. For example, the Great Banyan Tree (Ficus benghalensis) in the Indian Botanical Garden at Kolkata
2. Gardens have a wide range of species and supply taxonomic material for botanical research.
3. Garden is used for self-instruction or demonstration purposes.
Question 7.
Where will you place the plants which contain two cotyledons with cup shaped thalamus?
Answer:
The plants which contain two cotyledons with cup shaped thalamus:

- Class: Dicotyledonae
- Subclass: Polypetalae
- Series: Calyciflorae
Question 8.
How does molecular markers work to unlock the evolutionary history of organisms?
Answer:
Molecular taxonomy using molecular markers like RAPD's etc, helps in establishing the relationship between the members of different taxonomic groups at DNA level. Thus it helps to unlock the evolutionary history of organisms.
Question 9.
Give the floral characters of Clitoria ternatea.
Answer:
Flower: Bracteate, bracteolate, bracteoles usually large, pedicellate, heterochlamydeous, complete, bisexual, pentamerous, zygomorphic and hypogynous.
Question 10.
How will you distinguish Solanaceae members from Liliaceae members?
Answer:

Textbook Activities Solved
Question 1.
Write common name and scientific name of 10 different plants around your
home.
Answer:

Question 2.

Can you identify this?

(a) Name the family
(b) Write the binomial
(c) List the economic uses
Answer:
(a) Liliaceae family
(b) Aloe vera
(c) List the economic uses:
- The gel - like part of Aloe vera contain proteole enzymes which repairs and rejunuveates the skin.
- It acts as a great conditioner for hair.
- Aloe juice acts as coolant and soothes gastric problems like ulcer.
Entrance Examination Questions Solved
Choose the correct answer:
Question 1.
Leaves become modified into spines in 
(a) Silk Cotton
(b) Opuntia
(c) Pea
(d) Onion
Answer:
(b) Opuntia

Question 2.
Keel is the characteristic feature of flower of 
(a) Tomato
(b) Tulip
(c) Indigofera
(d) Aloe
Answer:
(c) Indigofera
Question 3.
Perigynous flowers are found in 
(a) Rose
(b) Guava
(c) Cucumber
(d) China rose
Answer:
(a) Rose
Question 4.
Which one of the following statements is correct?
(a) The seed in grasses is not endospermic
(b) Mango is a parthenocarpic fruit
(c) A proteinaceous aleurone layer is present in maize grain
(d) A sterile pistil is called a staminode
Answer:
(c) A proteinaceous aleurone layer is present in maize grain

Question 5.
An example of edible underground stem is
(a) Carrot
(b) Groundnut
(c) Sweet potato
(d) Potato
Answer:
(d) Potato
Question 6.
Placenta and pericarp are both edible portions in
(a) Apple
(b) Banana
(c) Tomato
(d) Potato
Answer:
(c) Tomato
Question 7.
When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as 
(a) Vexillary
(b) Imbricate
(c) Twisted
(d) Valvate
Answer:
(b) Imbricate
Question 8.
An aggregate fruit is one which develops from
(a) Multicarpellary syncarpous gynoecium
(b) Multicarpellary apocarpous gynoecium
(c) Complete inflorescence
(d) Multicarpellary superior ovary
Answer:
(b) Multicarpellary apocarpous gynoecium

Question 9.
Non-albuminous seed is produced in
(a) Maize
(b) Castor
(c) Wheat
(d) Pea
Answer:
(d) Pea
Question 10.
Seed coat is not thin, membranous in
(a) Coconut
(b) Groundnut
(c) Gram
(d) Maize
Answer:
(a) Coconut
Question 11.
In china rose the flower are
(a) Actinomorphic.. Epigynous with valvate aestivation
(b) Zygomorphic, hypogynous with imbricate aestivation
(c) Zygomorphic, epigynous with twisted aestivation
(d) Actinomorphic, hypogynous with twisted aestivation
Answer:
(d) Actinomorphic, hypogynous with twisted aestivation
Question 12.
Placentation in tomato and lemon is
(a) Marginal
(b) Axile
(c) Parietal
(d) Free central
Answer:
(b) Axile

Question 13.
Vexillary aestivation is characteristic of the family
(a) Solanaceae
(b) Brassicaceae
(c) Fabaceae
(d) Asteraceae
Answer:
(c) Fabaceae
Question 14.
Phyllode is present in 
(a) Australian Acacia
(b) Opuntia
(c) Asparagus
(d) Euphorbia
Answer:
(c) Asparagus
Question 15.
How many plants in the list given below have composite fruits that develop from an inflorescence? Walnut, poppy, radish,pineapple, apple, tomato
(a) Two
(b) Three
(c) Four
(d) Five
Answer:
(a) Two
Question 16.
Cymose inflorescence is present in
(a) Trifolium
(b) Brassica
(c) Solanum
(d) Sesbania

Answer:
(b) Brassica
Question 17.
Which one of the following organism is correctly matched with its three characteristics? [AIPMT Mains - 2012]
(a) Pea : $C_3$ pathway, Endospermic seed,Vexillary aestivation
(b) Tomato : Twisted aestivation, Axile placentation, Berry
(c) Onion : Bulb, Imbricate aestivation, Axile placentation
(d) Maize : $C_3$ pathway, Closed vascular bundles, scutellum
Answer:
(c) Onion : Bulb, Imbricate aestivation, Axile placentation
Question 18.
How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar,sun hemp, Chilli, Colchicine, Onion,Moong, Pea, Tobacco, Lupin 
(a) Four
(b) Five
(c) Six
(d) Three
Answer:
(c) Six
Question 19.
The Eyes of the potato tuber are 
(a) Axillary buds
(b) Root buds
(c) Flower buds
(d) Shoot buds
Answer:
(a) Axillary buds
Question 20.
Which one of the following statements is correct? 
(a) Flower of tulip is a modified shoot
(b) In tomato, fruit is a capsule
(c) Seeds of orchids have oil - rich endosperm
(d) Placentation in primrose is basal
Answer:
(d) Placentation in primrose is basal
Question 21.
A drup develops in 
(a) Tomato
(b) Mango
(c) Wheat
(d) Pea
Answer:
(b) Mango