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Biology Concepts Review
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Biology Concepts Review
Biology Concepts Review
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1
Question
How are electric charges distributed within the atom?
Answer
B. Positive charges are concentrated in the nucleus; negative charges surround the nucleus.
2
Question
How does a molecular compound compare to the elements that make up the compound?
Answer
D. The properties of a compound are usually very different from the properties of the elements that make it up.
3
Question
What describes each hydrogen bond between water molecules?
Answer
C. An attraction between the positive end of one molecule and the negative end of another molecule.
4
Question
Which are examples of active transport across the cell membrane?
Answer
D. Endocytosis and exocytosis.
5
Question
Which represents the hierarchical organization of a multicellular organism, from least complex level to most complex level?
Answer
C. Cell, tissue, organ, organ system.
6
Question
Which describes a eukaryotic cell, but not a prokaryotic cell?
Answer
B. Contains DNA in a nucleus.
7
Question
Which organelles would be LEAST useful for a student developing a model to show how most proteins are synthesized in animal cells?
Answer
A. Chloroplasts.
8
Question
What allows carbon to bond with up to four other atoms at a time and form the macromolecules that are essential to life?
Answer
D. The four electrons in its outer shell (valence electrons).
9
Question
What had Camille done when she observed the condition of her Pothos plant and decided it needed water?
Answer
D. Made an inference based on past experience and observation.
10
Question
Which pair of crosscutting concepts are BEST exemplified when birds fly south for the winter and north in spring?
Answer
C. Patterns and cause and effect.
11
Question
In the metric system, what do the kilogram, kilometer, and kilocalorie have in common?
Answer
B. All are units 1000 times larger than a base unit (gram, meter, calorie, liter, etc.).
12
Question
How do the statements of Shira and Nathaniel about the height of a bush compare?
Answer
C. The students used different metric units to state the same height.
13
Question
How do any two types of amino acids differ from one another?
Answer
C. The chemical structure of the R group in the molecule.
14
Question
Which inference is supported by the data of the growth of radish plants measured after 10 days?
Answer
B. Giving radish plants too little or too much fertilizer will slow down plant growth.
15
Question
What property of carbon is illustrated by the structure of glucose?
Answer
A. Carbon can form bonds with several other elements.
16
Question
In glucose, how many bonds does each carbon atom form, and of what type?
Answer
E. Four covalent bonds.
17
Question
Which model best illustrates the role of ATP in photosynthesis?
Answer
B. A rechargeable battery that stores and releases energy.
18
Question
How is the light energy that strikes the cell transformed into the chemical energy stored in sugars during photosynthesis?
Answer
C. Energy is transferred to sugars through intermediates, such as ATP and NADPH.
19
Question
Plants use the sugars produced by photosynthesis to synthesize which types of biomolecules?
Answer
E. I, II, and III (complex carbohydrates, amino acids, lipids).
20
Question
What best describes the role of molecular oxygen O2 in photosynthesis?
Answer
D. A byproduct that is released into the atmosphere.
21
Question
What is the MOST likely result of Professor Byron's experiment with heavy water and plants?
Answer
B. Deuterium is part of plant sugars, lipids, amino acids, and other compounds throughout the plant.
22
Question
Where would a label for oxygen be MOST useful to add to the diagram of photosynthesis?
Answer
B. On the arrows pointing out of the leaves.
23
Question
What type of reaction is shown in the graph that illustrates activation energy?
Answer
A. An energy-absorbing reaction.
24
Question
In addition to carbon, which elements are found in all biological macromolecules?
Answer
D. Hydrogen and oxygen.
25
Question
Which is NOT a function of biological macromolecules?
Answer
E. Biological macromolecules are solvents that can dissolve many ionic compounds and polar molecules.
26
Question
What conclusion is MOST STRONGLY supported about the polarity of lipid molecules?
Answer
D. Lipid molecules are nonpolar because they repel water molecules, which are polar.
27
Question
Which component of the human nervous system is correctly matched with its organizational level?
Answer
D. Nervous system organ.
28
Question
What must be represented as raw materials, or the reactants, in a model summarizing cellular respiration?
Answer
B. Glucose and oxygen.
29
Question
What is the role of ATP and NADH in the model of the electron transport chain?
Answer
B. ATP and NADH are synthesized as electrons are transported along the chain.
30
Question
What is the MOST LIKELY explanation for what prevents Earth from running out of oxygen?
Answer
A. The overall reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle.