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TNPSC General Science - Biology - Taxonomy and Morphology of Plant Sample Questions

TNPSC Biology - Taxonomy and Morphology of Plant

Exam Duration: 45 Mins Total Questions : 30

1 )

Sequence of taxonomic categories is

(a)
Class-Phylum-Tribe-Order-Family-Genus-Species
(b)
Division-Class-Family-Tribe-Order-Genus-Species
(c)
Division-Class-Order-Tribe-Genus-Species
(d)
Phylum-Order-Class-Tribe-Family

2 )

Which one among the following has the specialized absorptive tissue in root?

(a)
Orchids
(b)
Epiphytes
(c)
Monocots
(d)
All of these

3 )

Consider the following statements:

1. Phylloclade is a cylindrical green photosynthetic stem with unlimited growth.

2. Cladode is a green photosynthetic stem with limited growth.

Which of the statements given above are correct about aerial shoot modification?

(a)
Only 1
(b)
Only 2
(c)
Both 1 and 2
(d)
Neither 1 nor 2

4 )

Which of the following parts of insectivorous plants such as Nepenthes darlingtonia, etc., have modified to capture insect?

(a)
Leaf
(b)
Stem
(c)
Root
(d)
Flower

5 )

Consider the following statements:

1. Bamboo is monocarpic.

2. Bamboo bears flowers in 20-25 years.

Which of the statements given above are correct?

(a)
Only 1
(b)
Only 2
(c)
Both 1 and 2
(d)
Neither 1 nor 2

6 )

Match List I (Stem) with List II (Example) and select the correct answer using the codes given below.

List I	List II
A. Rhizome	1. Colocasia
B. Corm	2. Ginger
C. Tuber	3. Potato
D. Bulb	4. Onion

(a)

A B C D

2 1 3 4
(b)

A B C D

1 3 4 2
(c)

A B C D

3 4 2 1
(d)

A B C D

4 2 1 3

7 )

Consider the following statements in relation to plant tissue ' chlorenchyma'

1.It is formed by the palisade and spongy mesophyll.

2. It is a form of parenchyma, which contains chloroplasts.

3. It serves to transport organic solutes made by photosynthesis.

4. It is a thin transparent layer which has chiefly a protective function.

Which of the statements given above are correct?

(a)
1 and 2
(b)
1, 2 and 3
(c)
2 and 4
(d)
Only 1

8 )

Epiphytes are plants which depend on other plants for

(a)
food
(b)
mechanical support
(c)
shade
(d)
water

9 )

Consider the following plants

1. Bougainvillea

2. Carnation

3. Cocoa

3. Grapes

Which of these plants are propagated by stem cuttings?

(a)
1 and 2
(b)
2,3 and 4
(c)
1, 2 and 4
(d)
1,2,3 and 4

10 )

The branches of this tree root themselves like new trees over a large area. The roots then give rise to more trunks and branches. Because of this characteristic and its longevity, this tree is considered immortal and is an integral part of the myths and legends of India.Which tree is this?

(a)
Banyan
(b)
Neem
(c)
Tamarind
(d)
Peepal

11 )

Plants which grow in saline soil are

(a)
xerophytes
(b)
hydrophytes
(c)
halophytes
(d)
succulents

12 )

Which one of the following is an insectivorous plant?

(a)
passion on flower plant
(b)
Pitcher plant
(c)
Night queen
(d)
Flame of forest

13 )

Vegetative propagation by stem cutting is generally applies to

(a)
Banana
(b)
Sugarcane
(c)
Mango
(d)
Cotton

14 )

Consider the following plants

1. Jasmine

2. Sugarcane

3. Turmeric

Which of the statements given above are propagated by the vegetative method?

(a)
Only 1
(b)
1 and 2
(c)
2 and 3
(d)
1,2 and 3

15 )

Consider the following statements:

1. Taproot develops from radicle.

2. Adventitious root develops from other parts of plants

Which of the statements given above are true about root?

(a)
Only 1
(b)
Only 2
(c)
1 and 2
(d)
None of these

16 )

Study the following statements:

1. Lateral outgrowths of leaf base are called stipules.

2. Leaf with stipules called as stipulate.

3. Leaf without stipules called as exstipulate.

which of statements given above are correct?

(a)
1,2 and 3
(b)
1 and 2
(c)
2 and 3
(d)
1 and 3

17 )

A complete flower have

(a)
androecium and gynoecium
(b)
calyx and corolla
(c)
calyx and androecium
(d)
Both a and b

18 )

Study the following statements:

1. Taproot commonly occurs dicotyledons.

2. Onion is a modified form of the stem.

3. The edible part of turmeric is rhizome.

4. Eye of potato is axillary buds.

Which of the statements given above are correct?

(a)
1,2,3 and 4
(b)
1,2 and 4
(c)
1,2 and 3
(d)
None of these

19 )

Study the following statements:

1. A leaf consists of three parts-Leaf base, petiole and lamina

2. The leaf contains stomata that help in exchange of gas.

3. Mango and peepal show reticulate venation.

4. Banana and ginger show parallel venation.

Which of the statements given above are correct about the leaf?

(a)
1,2,3, and 4
(b)
1,2 and 3
(c)
1 and 2
(d)
3 and 4

20 )

Study the following statements:

1. Bisexual flowers contain both male and female reproductive organs.

2. The unisexual flower has only one essential floral whorl, either androecium or gynoecium.

Which of the statements given above are correct about the flowers?

(a)
Only 1
(b)
Only 2
(c)
1 and 2
(d)
None of these

21 )

Consider the following the statements:

1. The leguminous plant is related with family-Leguminosae.

2. The crop which provides oil comes under family-Cruciferae.

3. Grain providing plant is related to the family-Gramineae.

Which of the statements given above are correct?

(a)
1 and 2
(b)
2 and 3
(c)
1 and 3
(d)
1,2 and 3

22 )

Which one of the following is a good source of protein?

(a)
Gram
(b)
Pea
(c)
Soyabean
(d)
Pigeon pea

23 )

Which of the following crop enrich the soil with nitrogen?

(a)
Potato
(b)
Sorghum
(c)
Sunflower
(d)
Pea/legumes

24 )

Anabaena is used as fertilizer in growing the crop

(a)
wheat
(b)
rice
(c)
mustard
(d)
cotton

25 )

Canola refers to a special type of oilseed mustard varieties breed for human consumption. The main characteristics of this variety is that the

(a)
seed have very high oil content
(b)
oil is rich in unsaturated fatty acids
(c)
oil has long and shelf life
(d)
oil has very low erucic acid content

26 )

Match List I(Botanical Name) with List II (Example) and select the correct answer using the codes given below.

List 1	List II
A. Thia sinensis	1. Grass
B. Cynodon dactylon	2. Tea plant
C. Triticum aestivum	3. Mango
D. Mangifera indica	4. Wheat

(a)

A B C D

1 4 3 2
(b)

A B C D

2 1 4 3
(c)

A B C D

4 3 2 1
(d)

A B C D

3 2 1 4

27 )

Study the following statements:

1. The largest family of a flowering plant is Asteraceae.

2. Mushroom belongs to family-Agaricaceae.

Which of the statements given above are correct?

(a)
Only 1
(b)
Only 2
(c)
1 and 2
(d)
None of the above

28 )

Match List I (Example) with List II (Botanical Name) and select the correct answer using the codes given below.

List 1	List II
A. Arhar (Pigeon Pea)	1. Cicer arientinum
B. Chana (gram)	2. Cajanus cajan
C. Matar (Pea)	3. Phaseolus aureus
D. Moong (green gram)	4. Pisum sativum