Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plantsʹ embryos and male gametophytes, respectively, from desiccation? 

TLS Online TPP Program

#Question id: 12668

#Unit 6. System Physiology – Plant

What will be the effect of  water deficit condition in the plant cell?

TLS Online TPP Program

#Question id: 12669

#Unit 6. System Physiology – Plant

Water potential of plants under various growing conditions, and sensitivity of various physiological processes to water potential, during  water potential  0→ -1 MPa,  which of the following  physiological condition will not be seen ;

TLS Online TPP Program

#Question id: 12670

#Unit 6. System Physiology – Plant

 Changement  in the physiology or morphology of the individual is a nonpermanent  or  temporary and that can be reversed if the prevailing environmental conditions change is termed as 

TLS Online TPP Program

#Question id: 12671

#Unit 6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,

TLS Online TPP Program

#Question id: 12672

#Unit 6. System Physiology – Plant

Following are given some prediction about stress response which ultimately generate ROS;

a) Stress response activates the scavenging mechanism by ROS , these ROS is responsible for activating self-generation  mechanism by using RBOH

b) ROS have a negative effect on plant growth,  development,  and  yield

c) Almost every stress leads to the activation of ROS and its signal transduction

d) ROS indirectly induce acclimation mechanisms

Which of the following is the correct prediction about ROS activated by stress response?

TLS Online TPP Program

#Question id: 12711

#Unit 6. System Physiology – Plant

Various sensors monitor ROS levels in cells; an increase in ROS activates a signal transduction network. ROS scavenging is carried out by antioxidant molecules ____X_________and by antioxidant enzymes such as____Z_________