Chapter: Anatomy of Flowering Plants – Mock Test -Level-3

The internal structure of a plant stem is observed. There is a discontinuous ring of angular collenchyma below the epidermis. Type of vascular bundles are of the same type as in the stems of solanaceous plants. Sieve tube elements possess simple sieve plates, identify the plant.

Amphistomatic leaf is

Examples for lateral meristems are

The inner, darker and harder portion of secondary xylem that cannot conduct water, in an older dicot stem, is called

G H Shull observed inbreeding depression in a plant. Miller and Letham isolated a hormone from the immature seeds of that plant. Which of the following characters is not associated with the plant?

The growth of root and stem in length with the help of apical meristem is called …A…. Apart from primary growth most dicotyledonous plant exhibit an increase in girth called …B… Choose the correct combination of A, B and C in respect to the above paragraph

A nail is driven into the trunk of a 30 years old tree at a point 1 m above the soil level. The tree grows in height at the rate of 0.5m a years. After three years, nail will be

I. Peripheral vascular bundles are smaller than the centrally located vascular bundles
II. Phloem parenchyma is absent
III. Water parenchyma cavities are present within the vascular bundles
Which of the above characters belong to the monocotyledonous stem?

‘Exarch’ is the condition of vascular bundles in which

The tunica-corpus concept was proposed by

Quiescent centre is a reservoir of cells showing

If a sign board was nailed on the side of tree five feet above the ground in (1965), how high would the sign be in (1978), if the tree grew 1 inches taller each year

The term stereome refers to

Balloon like structures formed in the lumen of some non-functioning sieve tubes are called as

The resin ducts of gymnosperms are

A nectar-secreting gland cell characterstically contains

Laticiferous vessels instead of laticiferous cells are found in

Which statement is wrong
(a) In conjoint vascular bundle xylem and phloem are located on different radii
(b) When xylem is in centre surrounded on all sides by phloem then vascular bundle is known as Amphicribal vascular bundle
(c) All tissues on the innerside of the endodermis such as pericycle, vascular bundles and pith constitute the stele
(d) The inner most layer of the cortex is called endodermis

A concentric amphivasal vascular bundle is one in which

In internal tissue organization of dicotyledonous root the outermost layer is …….. (i)……. many of the epidermal cells protrude in the form of unicellular root hairs. The …….. (ii)……. consist of several layers of thin walled parenchymatous cells with intercellular spaces. The innermost layer of the cortex is called …….. (iii)……. All tissues on the innerside of the endodermis such as pericycle, vascular bundles & pith constitute the …….. (iv)……. .

Match Column-I with column-II
Column-I                                                                                   Column-II
(i) Casparian strips                                                                        (a) Endodermis
(ii) Initiation of lateral roots & vascular cambium                   (b) Pericycle
(iii) Passage cells                                                                         (c) Transfusion cells
(iv) Rhizodermistex                                                                       (d) Suberized cells of outer layer of cor

Abnormal secondary growth occurs in

In which stem, Iateral meristem is absent

The trees growing in deserts will

…..(i)…. wood does not conduct water but if given mechanical support to the stem. The peripheral region of the secondary xylem is lighter in colour and is known as the ….(ii)…. which is involved in the conduction of water and minerals from root to leaf. (i) & (ii) are respectively.

Match column-I with column-II
Column-I                                          Column-II
(i) Porous wood                         (a) Vessels are absent in xylem
(ii) Non porous wood               (b) Vessels are present in xylem
(iii) Ring porous wood             (c) Neem
(iv) Diffused porous wood      (d) Dalbergia

In the stelar evolution, the type of stele that is highly evolved is

The quiescent centre in root meristem serves as a

Bark refers to

DIRECTIONS: Each of these questions contains an assertion followed by reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.

Assertion In Tilia andNicotina, the secondary vascular tissues form a continuous cylinder.
Reason The interfascicular areas in the primary vascular are very narrow. Which of the following is true regarding these statements