A. 1:1000
B. 1:5000
C. 1:100
D. 1:50
✅ The correct answer is option A. 1:1000.
Medical
The normal pH of the saliva is about_____________?
A. 5.5
B. 9.5
C. 7.5
D. 8.5
✅ The correct answer is option C. 7.5.
Trypsin is an activator of all of the following enzymes EXCEPT_______________?
A. Chymotrypsinogen
B. Pepsinogen
C. Proelastase
D. Procolipase
✅ The correct answer is option B. Pepsinogen.
Transport form of iron is______________?
A. Transferrin
B. Ferritin
C. Apoferritin
D. Lactoferrin
✅ The correct answer is option A. Transferrin.
Renin secretion is stimulated by all except_____________?
A. Cardiac failure
B. Low Na+ in proximal tubule
C. Sympathetic stimulation
D. High Na+ in proximal tubule
✅ The correct answer is option D. High Na+ in proximal tubule.
Swallowing center is situated in_______________?
A. MIdbrain
B. Pons
C. Medulla
D. Cerebellum
✅ The correct answer is option C. Medulla.
Depression and Protrusion of the mandible_______________?
A. Medial ( INTERNAL) pterygoid muscle
B. Lateral (EXTERNAL) Pterygoid muscle
C. Masseter muscle
D. Temporalis muscle
✅ The correct answer is option B. Lateral (EXTERNAL) Pterygoid muscle.
Which type of collagen fibers demonstrates Chicken wire configuration ?
A. Type I
B. Type II
C. Type III
D. Type IV
✅ The correct answer is option D. Type IV.
Coenzyme, in an enzymatic reaction usually functions to_____________?
A. Activate the substrate
B. Increase the active sites of apoenzyme
C. Enhance the specificity of apoenzyme
D. Accept one of the cleavage products
✅ The correct answer is option D. Accept one of the cleavage products.
Which of the following is the best site of absorption of calcium ?
A. Proximal segment of small intestine
B. Middle segment of small intestine
C. Ascending colon
D. Ileum
✅ The correct answer is option A. Proximal segment of small intestine.