A biology exam covers a wide range of topics, incorporating detailed aspects of cellular biology, genetics, and biochemistry. Students may encounter questions related to cellular respiration (C6H12O6 + 6O2 → 6CO2 + 6H2O) and photosynthesis (6CO2 + 6H2O + light energy → C6H12O6 + 6O2), exploring...
Select the correct answer from the following statements. Only write down the question
number and letter to the correct answer, e.g. 1. C.
1.1 The results of dehydration reactions can be reversed by
a) Condensation reactions.
b) Hydrolysis reactions.
c) Polymerization reactions.
d) The addition of an amino group.
1.2 A cell that has a cell wall is undergoing cell division, and the following events are
observed: the formation of a cell plate and the division of the cell into two daughter
cells. What type of cell is being observed and what process (es) is it going through?
a) Prokaryote; telophase of mitosis
b) Animal cell; telophase and cytokinesis of mitosis
c) Plant cell; telophase and cytokinesis of mitosis
d) Plant cell; telophase II of meiosis
1.3 Which of the following processes is classified as a metabolic pathway?
a) The synthesis of a protein
b) Water moving across a membrane via osmosis
c) The death and lysis of a cell
d) The movement of oxygen across a membrane
1.4 Which of the following is not an expected outcome of global climate change?
A) Extreme weather patterns
B) Lower sea levels
C) Spread of tropical diseases
D) Increased extinction rates
1.5 The figure below shows five water molecules. The hydrogen bonds shown in this
figure are each between
2
, a) Two hydrogen atoms.
b) An oxygen and a hydrogen atom of the same water molecule.
c) An oxygen and a hydrogen atom of different water molecules.
d) Two atoms with the same charge.
1.6 Which of the following statements about the energy yield of aerobic respiration is
false?
a) Glycolysis resulting from 1 glucose molecule yields 2 ATP molecules.
b) The oxidation of pyruvate results in the production of 0 ATP molecules.
c) Oxidative phosphorylation resulting from 1 glucose molecule yields 12 ATP
molecules.
d) The citric acid cycle resulting from 1 glucose molecules yields 2 ATP
molecules.
1.7 The addition of oxygen instead of carbon dioxide to RuBP results in:
a) Cellular respiration.
b) Photorespiration.
c) Photophosphorylation.
d) Aerobic respiration.
1.8 Which of the following statements regarding mitosis and meiosis is false?
a) Mitosis provides for growth and tissue repair.
b) Meiosis provides for asexual reproduction.
c) In mitosis, the chromosomes replicate only once in the preceding
interphase.
d) All the events unique to meiosis occur during meiosis I.
1.9 Any gene located on a sex chromosome…
a) Is called a recessive gene.
b) Is called a sex-linked gene.
c) Will exhibit pleiotropy.
d) Will exhibit codominance.
1.10 Fatty acids with double bonds between some of their carbons are said to be
a) Unsaturated.
b) Saturated.
c) Completely hydrogenated.
D) Monoglycerides.
1.11 Which of the following statements regarding cells is false?
a) All cells are enclosed in a membrane that maintains internal conditions
different from the surroundings.
b) All cells have a cell wall.
c) All cells can interconvert forms of energy.
d) All cells have DNA as their genetic material.
3
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