Practice Questions

TLS Online TPP Program

#Question id: 13207

The polymer-trapping model explains symplastic loading in plants with intermediary-type companion cells, this model makes three prediction; which one of the following prediction is INCORRECT?

#Unit 6. System Physiology – Plant

Sucrose should be more concentrated in the mesophyll than in the intermediary cells
The enzymes for raffinose and stachyose synthesis should be preferentially located in the intermediary cells
The plasmodesmata linking the bundle sheath cells and the intermediary cells should exclude molecules larger than sucrose
Plasmodesmata between the intermediary cells and sieve elements must be smaller donot allow passage of raffinose and stachyose

More Questions

TLS Online TPP Program

#Question id: 1352

#Unit 4. Cell Communication and Cell Signaling

Actin filaments are to focal adhesions as _____ are to hemidesmosomes.

TLS Online TPP Program

#Question id: 18644

#Unit 13. Methods in Biology

A laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge.

TLS Online TPP Program

#Question id: 105

#Unit 1. Molecules and their Interaction Relevant to Biology

Isoprenoids are lipids which neither contain nor are derived from fatty acids and include

A) steroids.

B) waxes.

C) terpenes.

TLS Online TPP Program

#Question id: 16096

#Unit 7. System Physiology – Animal

heat stroke is characteristically associated with

TLS Online TPP Program

#Question id: 19102

#Unit 6. System Physiology – Plant

Phytoplasmas are specialized bacteria that are obligate parasites of the phloem tissue. They are mainly spread by these insects except;