Pathogen evades plant by penetration of surface layers directly using mechanical pressure or enzymatic attack, some pass through natural openings, such as stomata or lenticels, and others only enter through wounded tissue. Once inside the plant, one of three main attack strategies is deployed specific feature of interaction given;

A) Necrotrophy

B) Biotrophy

C) Hemibiotrophy

i) where the plant cells remain alive throughout infection

ii) where the plant cells are killed in advance of infection 

iii) extensive plant tissue damage at initial stages

iv) where the pathogen initially keeps cells alive but at later stages of the infection, kills them

Match the following

TLS Online TPP Program

#Question id: 22019

#Unit 1. Molecules and their Interaction Relevant to Biology

The above plot shows

TLS Online TPP Program

#Question id: 22020

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the given plot

TLS Online TPP Program

#Question id: 22021

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following expression is correct for affinity of enzyme for substrate KmS for irreversible reaction

TLS Online TPP Program

#Question id: 22022

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following expression is correct for affinity of enzyme for product KmP  for irreversible reaction

TLS Online TPP Program

#Question id: 22023

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct equation for Haldane reversible reaction

TLS Online TPP Program

#Question id: 22024

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the statements regarding competitive inhibition are given below

a)  The effect of a competitive inhibitor depends on the inhibitor concentration, the substrate       concentration and the relative affinities of the substrate and the inhibitor for the enzyme.

b) if the substrate concentration is low, the degree of inhibition will be great.

c) the substrate concentration is high, then the degree of inhibition will be marked low

d) non-competitive inhibitor can combine with an enzyme molecule to produce a dead-end complex

Choose the incorrect statement