R4RIN – MCQs, Mock Tests | Botany Botany MCQS[NEET-2021 to 2022]-Wood Anatomy, Xylem and Phloem

Which type of wood helps in formation of Major part of annual rings?

1. spring wood
2. autumn wood
3. Both A and B
4. None

✅ Correct Answer: 1

Autumn wood is present at

1. end of annual rings
2. beginning of annual rings
3. middle of annual rings
4. None

✅ Correct Answer: 1

Heartwood is also called as

1. Sap wood
2. Duramen
3. Porous wood
4. Non porous wood

✅ Correct Answer: 2

Which of the following region in heartwood is light in colour?

1. Peripheral region
2. Middle region
3. Outer region
4. Inner region

✅ Correct Answer: 1

Tracheid percentage is 90-95% in

1. Sap wood
2. Soft wood
3. Hard wood
4. None

✅ Correct Answer: 2

Which of the following wood is entirely lacks vessel

1. Non porous wood
2. Porous wood
3. Soft wood
4. Hard wood

✅ Correct Answer: 1

Monocot that showing anaomalous secondary growth?

1. Rice
2. Dracena
3. Maize
4. None

✅ Correct Answer: 2

Durable is

1. spring wood
2. sap wood
3. heart wood
4. None

✅ Correct Answer: 3

In an old stem the major part of wood is filled with tannins, resins, gums etc. This region is known are

1. Sap wood
2. Soft wood
3. Heart wood
4. All

✅ Correct Answer: 3

The age of tree by counting the annual rings is called

1. Chronology
2. Countology
3. Dendrology
4. Dendrochronology

✅ Correct Answer: 4

Vessels are present in all plants except

1. Gnetum
2. Pinus
3. Rose
4. Mango tree

✅ Correct Answer: 2

Xylem consists of

1. tracheids, vessels and companion cells
2. tracheids, vessels, fibres and parenchyma
3. tracheids, fibres and parenchyma
4. None

✅ Correct Answer: 2

Which of the following water conducting element is considered as most advanced

1. multiple vessels
2. annular tracheids
3. tracheids
4. none

✅ Correct Answer: 4

Tracheids and vessels are present in all except

1. Equisetum
2. Marselia
3. Gnetum
4. Cycas

✅ Correct Answer: 4

Wood parenchyma is formed from

1. fusiform initials
2. collenchyma cells
3. ray initials
4. Nonw

✅ Correct Answer: 1

Which of the following statement is true about sieve tube cells

1. companion cells are non-nucleated and are regulated by nucleated sieve cell
2. Sieve tube cells are nucleated but devoid of mitochondria and ER
3. Sieve tube cells are present in all plants
4. companion cells are nucleated and regulates activity of non- nucleated sieve tube cell

✅ Correct Answer: 4

Which of the following are the examples of phloem fibres

1. flax
2. jute
3. hemp
4. all

✅ Correct Answer: 4

All the following plant groups possess phloem parenchyma except

1. Monocots
2. Dicots
3. Gymnosperm
4. All

✅ Correct Answer: 1

Phloem consists of

1. vessels, sieve tube cells, phloem parenchyma, phloem fibres
2. sieve tube cells, companion cells, phloem parenchyma, phloem fibres
3. vessels, tracheids, phloem parenchyma, phloem fibres
4. vessels, tracheids, sieve tube cells, companion cells

✅ Correct Answer: 2

Which of the following tissues are involved in water conduction ?

1. Tracheids and tracheae
2. Xylem and Phloem
3. Parenchyma and sclerenchyma
4. Xylem fibres and bast fibres

✅ Correct Answer: 1