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Biology A Semester Exam Flashcards | StudBud
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Biology A Semester Exam
Biology A Semester Exam
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Review for Biology A Exam
Flashcards
38 cards
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Questions
38
Answers
1
There are 64 codons and 20 amino acids. Which of the following is true?
Several different codons can specify the same amino acid
Each amino acid is specified by only one codon
Each codon specifies a different amino acid
Some amino acids have no link to a codon
2
Marine biomes are divided into ecologically distinct zones depending on
their depth and distance from the shore
the type of plant life present
the type of fish present
their temperature and distance from the shore
3
Which of the following describes a neutral atom of oxygen?
6 protons, 6 neutrons, 6 electrons
8 protons, 8 neutrons, 10 electrons
8 protons, 8 neutrons, 8 electrons
6 protons, 6 neutrons, 8 electrons
4
How do aerobic and anaerobic respiration differ?
One releases more energy than the other
Anaerobic respiration evolved first
Anaerobic requires oxygen, aerobic does not
Only anaerobic respiration occurs in human cells
5
Which of the following is
not
a limiting factor on sea otter population in the ocean?
competition
disease
drought
predation
6
What happens if you place human red blood cells in a concentrated salt solution?
They shrink as water moves from inside to outside the cells
They burst as water moves from outside to inside the cells
Cells use energy to pump water out
No change occurs, water diffuses across the cell membranes.
7
Which organelles are involved in energy conversion?
mitochondria and chloroplasts
mitochondria and ribosomes
Golgi apparatus and chloroplasts
smooth and rough endoplasmic reticulum
8
Which molecule loses electrons during the light reaction in photosynthesis?
carbon dioxide molecule
chlorophyll molecule
ATP molecule
water molecule
9
What is the role of the scorpion in the food web?
producer
primary consumer
decomposer
secondary consumer
10
Which nucleotide in the figure indicates the nucleic acid is RNA?
cytosine
guanine
adenine
uracil
11
All are examples of a dependent variable if testing how detergent affects seed growth except
type of seed used
amount of water used
amount of detergent used
type of soil used
12
How is science different from other disciplines (like English, Math, etc)?
relies on observations
science relies on facts
relies on theories
relies on testing explanations
13
What amino acid is specified by codon GCG and will there be a change if codon is GCC instead?
The amino acid ala is not changed
The amino acid ala is changed to arg
The amino acid arg is not changed
The amino acid arg is changed to ala
14
Which of the following are NOT true concerning living things?
They do not require catalysts to sustain their living state.
They are composed of molecules containing carbon-carb bonds.
They undergo chemical reactions to get energy for survival
They contain a vital force absent in nonliving things.
15
Which is the correct sequence of the transfer of information in most organisms?
protein to DNA to RNA
RNA to protein to DNA
DNA to RNA to protein
RNA to DNA to protein
16
What are the reactants in the equation for cellular respiration?
water and glucose
glucose and oxygen
oxygen and lactic acid
carbon dioxide and water
17
As resources in a population become less available, the population ___________
reaches carrying capacity
increases slowly
declines rapidly
enters a phase of exponential growth
18
According to the image, what brand of bottle is the most neutral?
Propel Zero
Evian
Poland Spring
Alkalinne TEN
19
What happens during photosynthesis?
Autotrophs consume carbohydrates
Heterotrophs consume ATP
Autotrophs produce carbohydrates
Heterotrophs produce ATP
20
Which of the following pairs does not fit the pattern shown by the other pairs?
glucose, starch
amino acids, protein
ribonucleotide, RNA
fatty acids, DNA
21
Cellular respiration releases energy by breaking down ____________.
food molecules
carbon dioxide
water
ATP
22
The difference between codominance and incomplete dominance is
Incomplete dominance:A new allele seen in phenotype
Codominance: Both alleles are equally seen in new phenotype
Incomplete dominance: Both alleles equally seen in phenotype
Codominance: One allele is seen in phenotype from parent
23
P=purple, p= red. How many phenotypes in offspring of homozygous purple with homozygous red?
2
4
3
1
24
Which of the following is
not
a step in the light-dependent reactions?
Pigments in photosystem II absorb light
ATP synthase allow H+ ion to pass through thylakoid membrane
ATP and NADPH are used to produce high-energy sugars
High-energy electrons move through electron transport chain
25
During mitosis, parent cell with 4 chromosomes will produce two daughter cells, each containing
16 chromosomes
4 chromosomes
2 chromosomes
8 chromosomes
26
Ideally, sustainable development should ___________.
put the protection of the environment ahead of human needs
use more natural resources to make goods to meet human needs
provide for human needs at the expense of the environment
preserve ecosystems while providing for human needs
27
Introduced species can threaten biodiversity because they ___________.
reduce the amount of fertile land
cause desertification
cause biological magnification
crowd out native species
28
Which of the following pairs interacts with one another in a competitive manner?
a bird and the mite that lives on the bird’s body
2 birds of same or different species live in different areas
a bird and the snake that preys on the bird’s eggs
2 birds of same or different species living in the same area
29
How does studying science help you be a better member of society?
Understanding science helps you make better decisions.
Memorizing science facts helps you become more intelligent.
Knowing science helps you live without technology.
Learning biases of science to know what is right or wrong.
30
Which of these described climate rather than weather?
Wind speed changes as a storm moves through an area
The temperature decreases in a slow-moving cold front
Rainfall this year was greater than the rainfall last year.
Annual high temperature in summer have increase over decades
31
An isotope has a different amount of ____ than a neutral atom
atoms
electrons
protons
neutrons
32
What is the only variable that is changed by the experimenter during the lab?
dependent variable
analysis of experiment
independent variable
controlled variable
33
According to the pedigree, how did Leopold inherit hemophilia?
Only Victoria had the recessive allele
Both Albert and Victoria were recessive for the allele
Both Albert and Victoria were dominant for the allele
Only Albert had the dominant allele
34
X-ray diffraction data by Franklin & Wilkins helped Watson & Crick solve structure of DNA, how?
identify double stranded nature of helix and its dimensions
the presence of hydrogen bonds between bases
the ratio of bases
the presence of deoxyribose sugars
35
Which of the following is unique to meiosis?
Daughter cells produced are genetically identical
Chromosomes align along the central plate of the cell
Chromosome duplication occurs prior to cell division
Daughter cells produced in meiosis are genetically different
36
Matter can recycle through the biosphere because ___________.
matter is assembled into chemical compounds
matter does not change into new compounds
biological systems use carbon,oxygen, hydrogen, and nitrogen
biological systems do not use up matter, they transform it
37
Which pair of chromosomes determine sex? What is the sex of the human karyotype shown?
Pair 23, female
Pair 1, female
Pair 21, male
Pair 5, male
38
90% of energy is NOT passed to the next trophic level in a food chain, where does it go?
eliminated as heat
used in reproduction
stored as body tissue
stored as fat
