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TLS Online TPP Program

#Question id: 14901

cell walls are essential and are important features of plant cells that perform a number of essential functions. Which of the following are not the characteristics of a cell wall?

#Unit 6. System Physiology – Plant
  1. Cells are glued together by their walls, preventing cell sliding, slippage, and motility
  2. The cell wall acts as a cellular “exoskeleton” that controls cell shape and allows high turgor pressures to develop
  3. cell wall acts as a diffusion barrier that exceeds the size and kinds of molecules that can reach the plasma membrane, both through sieving effects and through ionic and covalent interactions
  4. sensory proteins are partly anchored in the cell wall and form a bridge to the plasma membrane
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TLS Online TPP Program

#Question id: 31232

#Unit 2. Cellular Organization

Condensin association with chromosomes is facilitated by mitotic CDKs and Aurora B kinase, which phosphorylates 
TLS Online TPP Program

#Question id: 19285

#Unit 9. Diversity of Life Forms

What is true of stamens, sepals, petals, carpels, and pinecone scales? 
TLS Online TPP Program

#Question id: 28183

#Unit 5. Developmental Biology

Dreisch conclude that if separate 4 cells than each cells has the capacity to develop a normal larvae, the mode of specification is known as___
TLS Online TPP Program

#Question id: 12526

#Unit 6. System Physiology – Plant

ABA is transported by both the xylem and the phloem, but it is normally much more abundant in ___
TLS Online TPP Program

#Question id: 5597

#Unit 5. Developmental Biology

Mammalian sperm will migrate against the direction of the flow—using CatSper calcium channels (like sea urchin sperm) to sense calcium influx and monitor the direction of the current, this process is known as: