Moss peat is used as a packing material for sending flowers and live plants to distant places because

• it is easily available

• it is hygroscopic

• it reduces transpiration

• it reduces transpiration

A common structural feature of vessel elements and sieve tube elements is

• thick secondary walls

• pores on lateral walls

• presence of P-protein

• presence of P-protein

The thalloid body of a slime mould (Myxomycetes) is known as

• Autosomal

• Cytoplasmic

• Y-linked

• Y-linked

What type of placentation is seen in sweet pea?

• Basal

• Axile

• Free central

• Free central

Which of the following statements regarding mitochondrial membrane is not correct?

• The outer membrane is permeable to all kinds of molecules

• The enzymes of the electron transfer chain are embedded in the outer membrane

• The inner membrane is highly convoluted forming a series of infoldings

• The inner membrane is highly convoluted forming a series of infoldings

How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to CO2 and H2O yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal?

• Two

• Thirty

• Fifty seven

• Fifty seven

An organic substance bound to an enzyme and essential for its activity is called

• coenzyme

• holoenzyme

• apoenzyme

• apoenzyme

Bowman's glands are found in

• olfactory epithelium

• external auditory canal

• cortical nephrons only

• cortical nephrons only

9.

Sulphur is an important nutrient for optimum growth and productivity in

• pulse crops

• cereals

• fibre crops

• fibre crops

Pentamerous, actinomorphic flowers, bicarpillary ovary with oblique septa, and fruit a capsule or berry, are characteristic features of

• Asteraceae

• Brassicaceae

• Solanaceae

• Solanaceae