#Question id: 10807
#Unit 6. System Physiology – Plant
Cyanogenic Glycosides and Glucosinolates are nitrogen
containing secondary metabolites in plants. Following are some statements
regarding the action of Cyanogenic Glycosides and Glucosinolates;
a) Cyanogenic Glycosides release the poison hydrogen
cyanide by the action of enzyme known as Hydroxynitrile lyase
b) Release of the mustard-smelling volatiles from
glucosinolates is catalyzed by a hydrolytic enzyme, called a thioglucosidase or
myrosinase
c) substerate for Glycosidase is Cyanogenic glycoside
and Thioglucosidase is Aglycone
d) Like cyanogenic glycosides, glucosinolates are
stored in the intact plant separately from the enzymes that hydrolyze them, and
they are brought into contact with these enzymes only when the plant is crushed
Which of the following combinations of above statement is true?
#Question id: 10808
#Unit 6. System Physiology – Plant
Many plants also contain unusual amino acids, called nonprotein amino acids, these Nonprotein amino acids are often very similar to common protein amino acids. Canavanine, for example, is a close analog of_____A______, and azetidine-2-carboxylic acid has a structure very much like that of_____B________.
#Question id: 11802
#Unit 6. System Physiology – Plant
Damaged sieve elements are sealed off, but because of the processs that plug sieve plates pores, excuded phloem sap from wounds that sever sieve elements. Exudation of sap enhanced by the inclusion of;
#Question id: 11803
#Unit 6. System Physiology – Plant
Due to damage exudation of sap from cut petioles or stems takes place they can be collected. However, quantities of collected sap are small, and the method is technically difficult. A preferable approach for collecting exuded sap is to use an
#Question id: 1016
#Unit 6. System Physiology – Plant
Lyme disease is an example of a disease
#Question id: 19105
#Unit 6. System Physiology – Plant