Practice Questions

TLS Online TPP Program

#Question id: 10492

Three major distinct metabolic pathways that can supply osmotically active solutes to guard cells have been clearly characterized,

#Unit 6. System Physiology – Plant

The uptake of K+ and Cl– from the apoplast, coupled to the biosynthesis of malate2– within the guard cells
The production of sucrose in the guard cell cytoplasm from precursors originating from starch hydrolysis in the guard cell chloroplast
The changes in osmotic potential required for stomatal opening in the morning are mediated by sucrose, whereas the afternoon changes are mediated by potassium and its counterions
The production of sucrose from precursors made in the photosynthetic carbon fixation pathway at the guard cell chloroplast

More Questions

TLS Online TPP Program

#Question id: 28831

#Unit 2. Cellular Organization

Most microtubules in a cell consist of a simple tube is called____

TLS Online TPP Program

#Question id: 28832

#Unit 2. Cellular Organization

Most microtubules in a cell consist of a simple tube, a singlet microtubule, built from____

TLS Online TPP Program

#Question id: 28833

#Unit 2. Cellular Organization

Doublet microtubule built from__

TLS Online TPP Program

#Question id: 28834

#Unit 2. Cellular Organization

All microtubules are nucleated from structures known as____

TLS Online TPP Program

#Question id: 28835

#Unit 2. Cellular Organization

All microtubules are nucleated from structures known as microtubule-organizing centers, or MTOCs, select the correct prediction about MTOCs?

TLS Online TPP Program

#Question id: 28836

#Unit 2. Cellular Organization

There are two different types of microtubule structures can exist____

a) the T form bound to GDP

b) the T form bound to GTP

c) the D form bound to GTP

d) the D form bound to GDP