Multiple Choice Questions

Advertisement

What differentiates leaf of dicots from monocots?

  • Parallel venation

  • Differentiation of palisade and spongy parenchyma

  • Stomata only on upper side

  • Stomata both on upper and lower sides


B.

Differentiation of palisade and spongy parenchyma

Main differences between dicot and monocot leaves are as follows:

Character Dicot leaf Monocot leaf
Type of leaf Dorsiventral Isobilateral
Stomata Have more stomata on lower epidermis. Have an equal number of stomata on upper and lower epidermis.
Mesophyll Differentiated into 2 parts: upper palisade and lower spongy. Undifferentiated
Bundle sheath It is single layered and made up of parenchymatous cells. It may be single or double layered and made up of sclerenchymatous cells.
Bulliform cells Absent Present; it helps in rolling and unrolling of leaves.
Venation Reticulate Parallel


Advertisement

Pappus is modified

  • calyx

  • corolla

  • bracts

  • gynoecium


During meiotic division, the

  • homologous chromosomes are seperated

  • linkage is disturbed

  • homologous chromosomes do not segregate

  • All of the above


Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Liliaceae

  • Brassiaceae


An obligate root parasite is

  • Rafflesia

  • Loranthus

  • Viscum

  • Striga


Advertisement

The edible dry fruit 'chigoza' is

  • fruit of Cycas

  • fruit of Pinus gerardiana

  • seed of Cycas

  • seed of Pinus gerardiana


Botanical name of 'chana' is

  • Cicer arietinum

  • Phaseolus aureus

  • Lablab purpureus

  • Dolichos


Trimerous flower, superior ovary and axile placentation is characteristics of

  • Liliaceae

  • Cucurbitaceae

  • Solanaceae

  • Compositae


Endoplasmic reticulum is in continuation with

  • Golgi body

  • nuclear wall

  • mitochondria

  • cell wall


Advertisement

In which form does the food is transported in plants?

  • Sucrose

  • Fructose

  • Glucose

  • Lactose