841. Saliva contains all of the following except:
(A. Hormones)
B. Amylase
C. Bacteria-killing enzymes
D. Antibodies
842. The conversion of pyruvate to oxaloacetate:
(A. Requires biotin)
B. Involves the fixation of carbon dioxide
C. Occurs in the mitochondria
D. All of the above
843. Gluconeogenesis is the:
A. Formation of glycogen
B. Breakdown of glucose to pyruvate
C. Breakdown of glycogen to glucose
(D. Synthesis of glucose from non-Carbohydrates precursors)
844. Which one of the following is the reaction in photosynthesis?
(A) Oxygenation
(B) Carboxylation
(C) Phosphorylation
(D) Decarboxylation
845. Number of cotyledons in Zea mays, Cycas, and Pinus individually are?
(A) 1,2,Many
(B) 1,2,4
(C) 2,2,Many
(D) 2,1,4
846. Silk thread is obtained from silk moth during?
(A) Larval stage
(B) Pupal stage
(C) Nymph stage
(D) Adult stage
847. Totipotency has shown by?
(A) Xylem
(B) Meristem
(C) Cork
(D) All of the above
848. When individual somatic cells contain three sex chromosomes XXX, this is called?
(A) Down syndrome
(B) Turner syndrome
(C) Klinefelter’s Syndrome
(D) Super female
849. In the evolution of modern man (Homo sapiens) from his ancestors, identify the most significant trend?
(A) Upright gesture
(B) Increasing cranial capacity
(C) Binocular vision
(D) Shortening of jaws
850. How much globulin is present in human serum?
(A) 2.6 to 3.5 g/dL
(B) 2.2 to 3.5 g/dL
(C) 2.1 to 3.0 g/dL
(D) 3.6 to 4.5 g/dL
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