Answer:
Explanation:
(A) Heterotrimeric G-proteins are composed of three distinct subunits (α, β, and γ). Receptor activation causes the binding of the G-protein and the α subunit to exchange GDP for GTP, leading (more...) The second class of GTP-binding proteins are monomeric G-proteins (also called small G-proteins).
Answer: B
Explanation:
The T helper cell needs to acttivate the T cyctotoxic cell in order for the Tc cell to go do its work.
Once the TC cell is active it interacts with MHC-1 proteins on the surface of the infected host cell, this allows the Tc cell to recignise the host cell and begin secreting cytotoxins (perforins and granzymes) in order to degrade the infected cell and cause apoptosis (controlled cell death)
Answer:
14 cm
Explanation:
Oh, this is a trick question! The thing is, the plant was <u>already 4 cm </u><u>on Day 0</u>. So from Day 0 - Day 15, the plant actually only grew (18 - 4 =) 14 cm.
They got you this time, but hopefully you know to watch out next time. I hope this helps!
Greenhouse gasses, Carbon Dioxide, Water Pollution and Air Pollution and Wildfires
