Biology

50 All living things *indirectly* get their food from…

A. Photosynthesis

B. Particle spin

C. Only chemosynthesis

D. Pigments

E. Water

51. What kinds of organisms perform cellular respiration?

A. Animals only

B. Plants only

C. All of them

D. Crustaceans only

52. The initial reactions in photosynthesis are known collectively as…

A. Thylakenisis

B. The light reactions

C. The Muller-Cooper reactions

D. The dark reactions

E. The Calvin pathway

53. The (blanks) of photosynthesis are the (blanks) of cellular respiration.

A. Pigments, products

B. Electrons, protons

C. Nucleotides, nitrogen bases

D. Products, reactants

E. Reactants, products

53. An orange carrot…

A. Refracts yellow light

B. Reflects all wavelengths of light except orange

C. Transmits blue and green light

D. Absorbs all wavelengths of light except orange

E. Absorbs violet light, but reflects red and green light

54. Photophosphorylation involves ATP

A. Production during the light reaction of photosynthesis

B. Breakdown during the light reaction of photosynthesis

C. Formation during the dark reaction of photosynthesis

D. Breakdown during the dark reaction of photosynthesis

55. The net equation for photosynthesis produces

A. Water and carbon dioxide

B. Water and oxygen

C. Carbohydrate and carbon dioxide

D. Carbohydrate and oxygen

56. As far as the light reaction of photosynthesis is concerned, what is the role of oxygen?

A. It is a necessary reactant.

B. It is a waste product.

C. It is a product that is then utilized in the dark reaction.

D. It is not involved as a product or a reactant.

57. The essential initial role of light in initiating the light reaction of photosynthesis is to produce

A. Free neutrons

B. Free electrons

C. Free oxygen

D. ATP

58. True or False question

 The proper way to focus a microscope is to start with the highest power objective (100X) first.

A. True

B. False

59. Resolving power is the ability to discern two objects as being distinct objects.

A. True

B. False

60. Which of the Statements below is false? A. Resolving power is also influenced by the NA of the objective. B. The air space between the slide and lens can be replaced by a drop of immersion oil which has a different refractive index than air. C. The use of oil immersion is an absolute necessity when using the 40X objective. D. When using the 40X and 100X objectives, only use the fine focus.

61. During which stage of mitosis is the nuclear membrane broken into fragments? A. Metaphase  B. Early Prophase C. Anaphase  D. Late Prophase  62. Equatorial plate of the mitotic spindle is formed during the _______. A. Anaphase  B. Metaphase C. Late prophase  D. Early prophase

63. Mitotic cell division is initiated in the _______. A. Centromere  B. Centriole C. Mucleus  D. Mitotic spindle  64. During which stage of mitosis do nucleoli reappear? A. Anaphase  B. Early Prophase  C. Telophase D. Late Prophase  65. The number of chromosomes in a human cell is _______. A. 2  B. 4  C. 23  D. 46 66. The resting stage of the cell is known as the _______. A. Interphase B. Telophase  C. Anaphase  D. Prophase  67. During which stage of mitosis do chromatids separate to form two sets of daughter chromosomes? A. Anaphase B. Telophase  C. Prophase  D. Interphase  68. Genetic information is transferred from parent to daughter cells through the _______. A. Mitochondria  B. Endoplasmic reticulum  C. Centrioles  D. Nucleus 69. Which stage of mitosis is depicted in the diagram below?  Mitosis Stage A. Metaphase  B. Telophase  C. Anaphase D. Prophase  70. Which stage of mitosis is depicted in the diagram below?  Mitosis Stage A. Metaphase  B. Anaphase  C. Telophase D. Prophase

71. Which stage of mitosis is depicted in the diagram below?  Mitosis Stage A. Anaphase  B. Metaphase  C. Prophase D. Telophase  72. Which of the following is the longest stage of mitosis? A. Telophase  B. Metaphase  C. Prophase D. Anaphase  73. During which stage of mitosis does longitudinal splitting of the chromosomes occur? A. Prophase  B. Anaphase C. Telophase  D. Metaphase

74. The interphase and mitosis together constitute the cell cycle. A. True B. False  75. The nuclear membrane is formed around the newly-formed sets of daughter chromosomes during the telophase. A. True B. False  76. During mitosis, loosely arranged strands of chromosomes become coiled, shortened and distinct during the metaphase. A. True  BFalse

77. Mendel’s second principle states that the inheritance of one characteristic will not affect the inheritance of another characteristic. What is the principle called?

A. Mutation

B. Fertilization

C. Crossing over

D. Independent assortment

78. Which statement describes how two organisms may show the same trait, yet have different genotypes for that phenotype?

A. One is homozygous dominant and the other is heterozygous.

B. One is homozygous dominant and the other is homozygous recessive.

C. Both are heterozygous for the dominant trait

D. Both are homozygous for the dominant trait.

79. Sexual reproduction contributes to

A. Less genetic variation within a population.

B. More identical genotypes within a population.

C. Greater genetic variation within a population.

D. Greater mutation rate within a population.

80. Which of the following genotypes has the potential for the greatest genetic variation in the offspring?

Homozygous dominant crossed with homozygous recessive.

Heterozygous crossed with homozygous recessive.

Homozygous dominant crossed with homozygous dominant.

Heterozygous crossed with another heterozygous individual.

81. In pea plants, yellow pea pods are dominant to green pea pods and round-shaped pods are dominant to wrinkled pods. How do the offspring of two plants that are heterozygous for yellow, round pods result in four different phenotypes? Is it the result of

A. Random alignment of chromosomes during meiosis.

B. Random fertilization during sexual reproduction.

C. Crossing over between chromosomes during meiosis.

D. Mutation in the DNA of the gametes.

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