Biology 1st Quarter Benchmark: Question Preview (ID: 21754)

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Proteins that act as catalysts are called
a) amino acids b) enzymes c) nucleic acids d) substrates
An organism that uses energy to maintain internal conditions.
a) specialist b) generalist c) conformer d) regulator
Which of the following is NOT a monomer?
a) carbohydrate b) amino acid c) nucleic acid d) fatty acid
A large molecule is called a...
a) macromolecule b) micromolecule c) gigamolecule d) polymolecule
What is referred to as global warming due to an increase of carbon dioxide levels because of the burning of fossil fuels and trapping heat?
a) carbonation b) greenhouse effect c) caloric burn d) uv radiation
An organic compound
a) is hydrophobic b) not made by living organisms c) contains carbon atoms and other elements d) includes water
Water molecules are polar, with the...
a) oxygen side being slightly positive and the hydrogen side being slightly negative. b) oxygen and hydrogen sides being slightly positive. c) oxygen and hydrogen sides being slightly negative. d) oxygen side being slightly negative and the hydrogen side being slightly positive.
Adhesion is
a) attractive force between UNLIKE SUBSTANCES b) one or more substances are uniformly distributed in another substance c) attractive force between PARTICLES of the SAME KIND d) solutions in which water is the solvent
Which of the following is NOT a characteristic of water?
a) it is polar b) it is an organic compound c) has the property of capillarity d) it is an effective solvent
An aqueous solution that contains more hydroxide ions than hydronium ions is:
a) acidic b) neutral c) basic d) none of these
Scale for comparing the relative concentration of H3O+ to OH- in solution
a) polar scale b) hydronium scale c) pH Scale d) hydroxide scale
Which of the following is NOT a characteristic of life?
a) Reproduction b) Use energy c) Breathe d) Organization
A Hydrogen bond is formed as the result of ....
a) an attractive force between 2 water molecules b) a sharing of electrons between water molecules c) an attractive force between a carbon and hydrogen atoms d) none of the above
As resources in a population become less available, the population
a) declines rapidly b) increases slowly c) reaches carrying capacity d) enters a phase of exponential growth
Molecules have same formula, but different structure
a) polymer b) monomer c) Isomer d) macromer
The term used to describe any living thing is a(n)
a) animal b) species c) cell d) organism
Organisms that acquire energy by making their own food are called:
a) autotrophs b) heterotrophs c) unicellular d) multicellular
A symbiotic relationship in which one organism is harmed and the other benefits is
a) mutualism b) parasitism c) commensalism d) predation
The thin layer of earth and its atmosphere that supports life is called
a) Ozone Layer b) Biosphere c) Biomes d) Ecosystem
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