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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