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SAT Biology (Ecological) → SAT Biology sample paper questions from 41 to 50

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41. Gymnosperms are NOT
(A) seed plants
(B) predominantly diploid
(C) flowering plants
(D) conifers
(E) naked seed plants

42. Viruses are
(A) always viewed with a light microscope
(B) are an enzyme-nucleus mix
(C) obligate, intracellular parasites
(D) cellular
(E) host independent

43. An invertebrate is found in a freshwater setting and studies show it to have three developmental body layers and a cuticle covering its outer body. It belongs in the same phylum as the
(A) hydra
(B) leeches
(C) sea stars
(D) sponges
(E) crustaceans

44. Bile
(A) activates pancreatic lipases
(B) emulsifies fat droplets
(C) congeals fat droplets
(D) digests fats
(E) is produced in the pancreas

45. Which of the following enzymes acts on protein?
(A) pepsin
(B) ptyalin
(C) amylase
(D) maltase
(E) sucrase

46. Digestion in protozoans is
(A) extracellular
(B) intracellular
(C) intercellular
(D) dorsal
(E) none of the above

47. Which of the following is true about the blood?
(A) Arteries carry oxygen-rich blood
(B) Arteries carry oxygen-poor blood
(C) Veins carry oxygen-rich blood
(D) Veins carry oxygen-poor blood
(E) None of the above is true

48. Chemical digestion begins in the
(A) mouth
(B) esophagus
(C) stomach
(D) gall bladder
(E) small intestine

49. In a heterozygous monohybrid cross, the dominant trait can be expressed in the phenotype of the F1 ________ of the time.
(A) 0 percent
(B) 25 percent
(C) 33 percent
(D) 75 percent
(E) 100 percent

50. Which of the following would be the result of a true dihybrid cross?
(A) AABB
(B) AABb
(C) AaBb
(D) AaBB
(E) aaBb

ANSWERS: SAT BIOLOGY (E) SAMPLE PAPER
41. C
42. C
43. E
44. B
45. A
46. B
47. E
48. A
49. D
50. C