Question

78. A mouse is placed in a sealed container. The changes in osygen and carbon dioxide d. all of the above. aerobic cellular respiration 79. One of the products of photosynthesis is: d carbon dioxide. e pyruvate. a. NADH c.oxygen gas. Which reaction in the chloroplast produces glucose? 80. C. Calvin cycle d. electron transport chalin (ETC) b. glycolysis C. carbon dioxide d. all of the above b. sunlight In the warmer temperatures of summer, plants will have a higher rate of photosynthesis due to: a. an increase in enzyme acthity and reaction rates b. an increase in the amount of oxygen available to plants. c. the sun being closer to the earth denatures the photosynthetic enzymes d. an increase in the amount of carbon dioxide produced by the plant. 82. 83. Which phase of aerobic celilular respiration produces the most ATP? a. b. glycolysis. the electron transport system. d. the Kreb's cycle During anaerobic alcoholic fermentation, how many net ATP result for each glucose utilized? C. d. 84. a.0 32 36 8S. During mitosis the genetic material is condensed and is visible with the light microscope. In this form it is referred to as: d. chromosomes. e- chromatin. c. sister chromatids. 86. The haploid number of chromosomes in humans is: a. 2 b. 22 c. 23 d. 44 e. 46 87. In most human females, the sex are the: b. XxX c. XY e. XYZ

Answer 1

78.(a) Aerobic cellular respiration

Reason: experiment that shows the need of oxygen for an organism to survive.

79.(c) Oxygen gas

Reason: Carbon di oxide+water+ Light energy ------>Glucose+ oxygen gas

80.(a) Light reactions

Reasons: Photosynthesis takes place

81.(d) all the above

Answer: Plant absorbs CO₂ from the environment and water through roots and using sunlight performs photosynthesis

82.(d) an increase in the amount of carbondi oxide produced by the plant

Reason:Increase in climatic conditions increases the amount of CO₂.

83.(b) electron transport chain

Reason;the transfer of electrons and their excitations in PSI and PS II systems generates flow of energy in the form of ATP.

84.(b) 2

Reason: One glucose is broken down into 2 pyruvate thereby producing 2 ATP molecules.

85.(d) chromosomes

Reason: During mitosis chromatin condenses to form chromosomes.

86.(c) 23

Reason:Haploid set of chromosomes is 23

87.(a) XX

Reasons:Human females have two X chromosomes