Botany Free Online Test 21

BOTANY FREE ONLINE TEST 21

1 / 10

The main function of sieve tubes is —

Food translocation

Mechanical support

Water transport

Mineral absorption

2 / 10

Which element of phloem lacks nucleus at maturity?

Companion cel

Sieve tube element

Phloem parenchyma

Phloem fibre

3 / 10

Sclerenchyma fibres are characterized by —

Living protoplasm

Thick lignified walls and dead cells

Presence of chloroplasts

Thin cellulose walls

4 / 10

Which simple tissue is specialized for storage of food?

Parenchyma

Collenchyma

Sclerenchyma

Xylem

5 / 10

Which meristem contributes to elongation of internodes in grasses?

Apical meristem

Lateral meristem

Secondary meristem

Intercalary meristem

6 / 10

The tissue responsible for girth increase is —

Cambium

Epidermis

Apical meristem

Cortex

7 / 10

The arrangement of vascular bundles in root is —

Collateral

Bicollateral

Conjoint

Radial

8 / 10

Monocot roots have —

No pith

Few xylem bundles

Large pith

Open vascular bundles

9 / 10

In dicot stem, vascular bundles are —

Closed

Open with cambium

Radial

Scattered

10 / 10

Casparian strips are made of —

Lignin and suberin

Pectin

Cellulose

Cutin

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Botany Free Online Test 21

About Saheb Shaik