1. Which of the billowing is true regarding receptor tyrosine (RTKs)?
A. They remove phosphate from proteins
B. They autophosphorylase on binding their ligand
C. They are active primarily as monomers
D. They activate phosphoprotein phosphatase
2. Which of the following is true regarding RAS signaling
A. It gets a phosphate put onto its GDP to make GTP.
B. It is focused on stimulating transcription
C. Is requires that RAS be a dimer to function.
D. It activates phosphoprotein phosphokinase
3. The signal pathway initiated by the insulin receptor complex involving P13-kinase
A. leads to activation of protein kinase B (also called Akt)
B. leads to activation of protein kinase B (also called (PDKI
C. leads to activation of protein kinase C
D. leads to activation of protein kinase A
4. Messengers that use intracellular receptors must be
A. hydrophobic molecules
B. polar molecules
C. charged molecules
D. peptides
5. Which of the following is true regarding G-coupled protein receptors (GPCR)7
A. They are active primarily as monomers
B. They bind hormone with their intracellular domain
C. They are rare in the human genome
D. They have seven transmembrane domains
6. Fructose enters the absorptive cells on the luminal side via
A. SGLT
B. GLUT 5
C. Osmosis
D. GLUT 2
7. Straight chain of amylose is formed by:
A. α-1,6 bonds
B. α-1,4 and α-1,6 bonds
C. α-1,4 bonds
D. β-1,4 bonds
8. Enzyme hydrolyzing internal α-1,4 bonds between glycosyl residues at random intervals in
the polysaccharide chain called:
A. Exoglycosidase
B. Endoglycosidase
C. Transferase
D. All
