Biology - Mock Test 180

Question 1791

Lenticels are associated with?

A) Absorption of moisture B) Photosynthesis C) Gaseous Exchange D) Mineral uptakes

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Question 1792

In leaf protexylem is directed towards?

A) Lower epidermis B) Phloem C) Stomata D) Upper epidermis

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Question 1793

Conjoint,collateral and open vascular bundles are found in?

A) Monocot Stem B) Monocot leaf C) Dicot Stem D) Dicot root

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Question 1794

The lateral meristem increases the?

A) Height of the plant B) Thtickness of trunk C) Size of the leaf D) Branches of root

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Question 1795

Lysigeneous cavity is found?

A) In the cortex B) Between xylem and phloem C) Beneath Protoxylem D) Beneath metaxylem

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Question 1796

Close type of vasular bundle lacks?

A) Xylem B) Sclerenchyma C) Phloem D) Cambium

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Question 1797

The central Region of the stem and root is known as?

A) Pericycle B) Medulla (pith) C) Endodermis D) Cortex

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Question 1798

Root hair is always?

A) Very long B) Multi cellular C) Cuticularized D) Unicellular

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Question 1799

Which cells regulate the function of sieve tube ?

A) Guard cells B) Passage cells C) Companion cells D) Bulliform cells

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Question 1800

The dead element of the phloem is?

A) Sieve cells B) Companion cells C) Sieve tube D) Phloem fibre

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