25 Jun Which happens to the substance that is oxidized during an oxidation
Question
8.(TCO 3) Which happens to the substance that is oxidized during an oxidation-reduction reaction? (Points : 4)
It gives up hydrogen atoms.
It takes on oxygen atoms.
It becomes a charged species.
It shows a gain of electrons.
It shows a loss of electrons.
Question 9.9.(TCO 4) Ammonia (NH3) accepts a proton from water. Which of the statements listed below is true according to Bronsted-Lowry definitions? (Points : 4)
Ammonia is a base.
Ammonia is an acid.
Ammonia produces H+ ions in aqueous solutions.
Ammonia acts as a solvent.
Ammonia is neutral.
Question 10.10.(TCO 4) Which volume of 2.5% (m/v) NaCl can be prepared from 185 mL of a 8.0% NaCl solution? (Points : 4)
57.8 mL
592 mL
6 mL
185 mL
63 mL
Question 11.11.(TCO 4) An unknown solution has a pH of 13. This solution is (Points : 4)
extremely acidic.
moderately acidic.
neutral.
slightly basic.
extremely basic.
Question 12.12.(TCO 5) The _____ structure of a protein consists of relationships between amino acids that are far apart in a protein. (Points : 4)
primary
secondary
tertiary
quaternary
None of the above
Question 13.13.(TCO 5) Which of the following is a type of protein? (Points : 4)
Phospholipids
Antibodies
DNA
Glycogen
All of the above
Question 14.14.(TCO5) The presence of more than one polypeptide chain is described as _____ protein structure. (Points : 4)
primary
secondary
tertiary
quaternary
infinite
Question 15.15.(TCO 6) Which of the following is paired incorrectly? (Points : 4)
Peroxisome: Catalase
Mitochondria: Eukaryote
Cytoskeleton: Tubulin
Nucleus: Prokaryote
Ribosome: Protein synthesis
Question 16.16.(TCO 6) Mitochondria are surrounded by _____. (Points : 4)
a single membrane
genes
DNA
a double membrane
carbohydrates
Question 17.17.(TCO 6) Which of the following terms describes where substrate binds on an enzyme? (Points : 4)
Active site
Primary structure
Inhibitor site
Conformation
Denatured
Question 18.18.(TCO 7) The energy from breaking down glucose is _____ during respiration. (Points : 4)
transferred to starch
used to manufacture glucose by exergonic reactions
released all at once
carried by electrons
None of the above
Question 19.19.(TCO 7) Which substances are produced during the light-dependent reactions? (Points : 4)
ATP and NADH
ATP and NAD+
ATP and NADPH
RuBP and O2
ATP and NADP+
Question 20.20.(TCO 7) Which of the following is the proper order of reactions occurring during cellular respiration? (Points : 4)
Glycolysis, citric acid cycle, electron transport chain
Citric acid cycle, glycolysis, electron transport chain
Citric acid cycle, electron transport chain, glycolysis
Electron transport chain, glycolysis, citric acid cycle
Electron transport chain, citric acid cycle, glycolysis
Question 21.21.(TCO 8) Which happens during metaphase? (Points : 4)
The nuclear envelope breaks up.
Cytokinesis occurs.
Tetrads form.
Centromeres divide.
Chromosomes line up on the midline of the cell.
Question 22.22.(TCO 8) Which do you call the specific traits of an organism? (Points : 4)
Holotype
Genotype
Typology
Phenotype
Morphology
Question 23.23.(TCO 8) Operons contain regulatory genes that code for _____. (Points : 4)
RNA polymerase
repressors
promoters
enzymes
lactose
Question 24.24.(TCO 9) Which of the following is a potential benefit of the Human Genome Project? (Points : 4)
Lead to treatments for inherited diseases
Lead to treatments for contagious diseases
Increase our understanding of the historical relationships among species
Aid in solving crimes
Play a role in all of the choices listed here
Question 25.25.(TCO 9) The genes responsible for the breakdown of lactose in E. coli are part of a(n) _____. (Points : 4)
operon
activator
promoter
exon
regulatory gene
Question 26.26.(TCO 9) Which of the following is an example of a transgenic organism? (Points : 4)
An organism carrying a gene that was acquired by artificial means
The first organism in which a particular mutation has appeared
An organism carrying genes from two different parents
A cloned organism carrying two different alleles
An organism that gestated in an artificial womb
Question 27.27.(TCO 10) Natural selection consists of all of the following, except (Points : 4)
some variation can be passed on to offspring.
all species are descended from a common ancestor.
populations produce more offspring than the environment can support.
individuals in a population vary.
organisms with greater fitness produce more offspring.
Question 28.28.(TCO 10) In ferns, which stage in the alternation of generations is larger? Is this stage haploid or diploid? (Points : 4)
Sporophyte: haploid
Sporophyte: diploid
Gametophyte: diploid
Gametophyte: haploid
The same size: haploid
Question 29.29.(TCO 10) A type of moth had two color variations, a light color and a dark color. The dark-colored moths were much less noticeable to predators because they blended in with the wood of the trees they lived in. Therefore, the dark colored moths survived much better and had more offspring and the population of moths slowly evolved to be all dark colored. Which mechanism of evolution was at work in this case? (Points : 4)
Mutation pressure
Natural selection
Genetic drift
Migration
Divergence
Question 30.30.(TCO 10) Which of the features below was the first to appear in early hominids such as Australopithecus afarensis? (Points : 4)
Language
Tool-making
A large brain
An upright posture
Use of medicinal plants
Question 31.31.(TCO 10) Which of the following are autotrophs? (Points : 4)
Flatworms
Diatoms
Amoebas
Cnidarians
Yeast
Question 32.32.(TCO 11) Deer and other herbivores are referred to as _____. (Points : 4)
decomposers
primary consumers
predators
producers
detritivores
Question 33.33.(TCO 11) The Atlantic Ocean and the Pacific Ocean belong to the same _____. (Points : 4)
abiota
community
population
biota
biome
Question 34.34.(TCO 11) An organism that has many offspring and poor parental care will likely exhibit _____. (Points : 4)
a type I survivorship curve
a type II survivorship curve
a type III survivorship curve
a survivorship curve between type I and type II
a survivorship curve between type II and type III
Question 35.35.(TCO 11) In the food chain grass → antelope → human → lion, the grass is a _____. (Points : 4)
producer
secondary consumer
primary consumer
tertiary consumer
herbivore
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