Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 44718
TLS Online TPP Program

#Question id: 1098

Which of the following is the most plausible explanation for why an animal cell would be unable to reduce the Ca2+ concentration in its cytosol compared with the extracellular fluid?

#SCPH06 I Botany

  1. inactivation of calcium-gated ion channels in the cell membrane

  2. excessive transport of calcium from the cytosol into the endoplasmic reticulum

  3. insufficient ATP levels in the cytosol

  4. insufficient levels of protein kinase in the cell

More Questions
TLS Online TPP Program

#Question id: 1599

#SCPH28 | Zoology

Name the class of MHC which is recognized by CD4 TH cell.
TLS Online TPP Program

#Question id: 1295

#SCPH06 I Botany

What signal is released by endothelial cells to recruit circulating leukocytes?
TLS Online TPP Program

#Question id: 4569

#SCPH28 | Zoology

Which of the following must exist in a population before natural selection can act upon that population?
TLS Online TPP Program

#Question id: 1091

#SCPH06 I Botany

Why does testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affect only target cells?
TLS Online TPP Program

#Question id: 3528

#SCPH12 I Genetics

Consider the following cross:

A/a ; B/b ; C/c ; D/d ; E/e  X a/a ; B/b ; c/c ; D/d ; e/e

What proportion of progeny will phenotypically resemble the first parent?