The origin of indirect evidence of life, no recognizable fossils except bacteria (microfossils) was during which geological eras?

TLS Online TPP Program

#Question id: 29504

#Unit 6. System Physiology – Plant

Idioblasts cells are involved in the synthesis of

TLS Online TPP Program

#Question id: 29505

#Unit 6. System Physiology – Plant

Cicutoxin is produced by plant as constitutive chemical defenses which is

a. Produced by Hemlock (Cicuta sp.) 

b. Is  a polyacetylene

c. Involved in repolarization of neuronal action potentials

d. Involved in the suspension of all muscular activity

Which of the following is true regarding Cicutoxin

TLS Online TPP Program

#Question id: 29506

#Unit 6. System Physiology – Plant

The active principle in foxglove (Digitalis sp.) is cardinolide digitoxin  is a

a. cardiac glycoside 

b. that activate ATPase activity 

c. that inhibits ATPase activity 

d. can increase myocardial contraction

Which of the following is not true regarding digitoxin

TLS Online TPP Program

#Question id: 29507

#Unit 6. System Physiology – Plant

δ-Cadinene, Longifolene, Abietic Acid, Terpinolene, and -Pinene are the resin terpenoids that often contain cardiac glycosides produced by

TLS Online TPP Program

#Question id: 29508

#Unit 6. System Physiology – Plant

Conifer resin ducts produces different terpenes and resin acids which are released immediately upon damage by herbivores these are

Column A	Column B
a. bicyclic monoterpenes	1. limonene and terpinolene
b. monocyclic terpenes	2. α-pinene and β-pinene
c. tricyclic sesquiterpenes	3. longifolene, caryophyllene, and δ-cadinene

Match them correctly with their example

TLS Online TPP Program

#Question id: 29509

#Unit 6. System Physiology – Plant

Which of the following is responsible to change the pheromonal behaviour of aphids