Practice Questions

TLS Online TPP Program

#Question id: 11092

Which statement is the most accurate definition of external respiration?

#I Life Science/ Life Sciences Group – I-V

Bulk flow (convection) of air or water to and from the gas-exchange membrane.
The process by which O2 is transported to the gas-exchange membrane from the environmental medium and by which CO2 is transported away from the membrane into the environmental medium.
The process by which CO2 is transported to the gas-exchange membrane from the environmental medium and O2 is transported away from the membrane into the environmental medium.
Diffusion of O2 and CO2 across the gas exchange membrane.

More Questions

TLS Online TPP Program

#Question id: 4306

#SCPH06 I Botany

Which of the following molecules helps to "turn off" genes in a cell?

TLS Online TPP Program

#Question id: 4306

#SCPH28 | Zoology

Which of the following molecules helps to "turn off" genes in a cell?

TLS Online TPP Program

#Question id: 4307

#SCPH01 Biochemistry

When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?

TLS Online TPP Program

#Question id: 4307

#SCPH05 I Biotechnology

When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?

TLS Online TPP Program

#Question id: 4307

#SCPH06 I Botany

When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?

TLS Online TPP Program

#Question id: 4307

#SCPH28 | Zoology

When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?