Answer:
True
Explanation:
The members all have seven different protein segments that cross the membrane, and they transmit signals inside the cell through a type of protein called a G protein. When its ligand is not present, a G protein-coupled receptor waits at the plasma membrane in an inactive state.
Answer:
a) Carbon fixation phase
b) stroma
c) Ribulose bisphosphate (RuBP)
d) 5-carbon molecule
e) two carbon molecules
f) glycerate-3-phosphate (GP)
Explanation:
In the Calvin cycle (also named C3 cycle or Calvin-Benson cycle), the CO2 is reduced in a cyclic process, where the first stable reaction product is 3-phosphoglyceric acid (3-PGA), a 3-C molecule, and the CO2 acceptor molecule is Ribulose bisphosphate (i.e., Ribulose 1, 5-diphosphate). The CO2 enters the chloroplast by passing through the stomata and diffusing into the stroma of the chloroplast, which is the site where sugar is synthesized. The Rubisco enzyme or RuBP carboxylase catalyzes the first step of the cycle (i.e., the attachment of CO2 to RuBP). The result of this reaction is an unstable 6C molecule, which breaks down into two 3C molecules named glycerate-3-phosphate (GP).
Answer:
G-protein subunits bind to the receptor
GTP binds to the alpha subunit replacing GDP
G-protein subunits separate from the receptor
alpha subunit separates from other two subunitsalpha subunit-GTP complex alters cell activity
Explanation:
5 2 3 4 1
The answer is Vitamin B3 (also called Niacin). To reduce flushing, it is recommended to take it in increasing doses. Its uptake in large quantities reduces cholesterol levels of the body and therefore, reduces the levels of cardiovascular diseases. However, these large quantities could also cause gastro intestinal complications, liver damage and glucose intolerance.