Anatomy of flowering plants practice · Mixed difficulty

Consider the following statements and choose the correct option.
I.The thread like cytoplasmic strands, running from one cell to other is known as plasmodesmata.
II.Xylem and phloem constitute the vascular bundle of the stem.
III.The first formed xylem elements are described as metaxylem.
IV.Radial vascular bundles are mainly found in the leaves.

I. Protection of internal tissue
II. Prevention of entry of any harmful organism
III. Minimising surface transpiration
IV. Protection against excessive heating up
These are the functions of which of the following?

Assertion: Aerenchyma found in aquatic plant.
Reason: It contains air cavities and provides buoyancy to
aquatic plant.

Which of the following cells is not totipotent?

Growth of stem in diameter is due to

Which type of vascular bundles are found in monocot stem?

Vessels and companion cells are absent in :

Excessive aerenchyma is characteristic of :

Assertion: Secondary growth won’t occur in monocot stem
Reason: Vascular bundles are closed in monocot stem.

All of the following exhibit an increase in girth (diameter), except

Outer most layer of primary plant body is

Which of the following statements is true?

Hypodermis is unique to monocot stem and if it is present in roots, it is

Plant cells that are photosynthetically active are found in the …A… layer of leaves and are …B… .
Choose the correct combination of A and B from the below given options

Ground tissue includes

In dicotyledonous roots, the initiation of lateral roots takes place in

Dicot stems have conjoint and open __________ tissue.

Xylem fibres are made up of

Which of the following tissues consist of living cells?

Mechanical tissue consisting of living cells is

I. Sieve tube conduct organic food longitudinally
II. Xylem parenchyma cells stores food and help in lateral conduction of sap
Select the correct option

The phloem of angiosperms differs from that of other vascular plants by the presence of

Which of the following would be in significant amount in xylem sap?

Alburnum is otherwise known as

I. Phloem transports the food materials usually from the leaves to other parts of the plant
II. Phloem in the angiosperm is composed of sieve tube elements, companion cells, phloem parenchyma and phloem fibres
Identify which of the following statement is correct and select the correct option

Damaged sieve tubes are sealed by deposition of

Meristematic cells have

Simple permanent living tissues which are made up of thin-walled similar isodiametric cells are called

Bulliform cells help

From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have