Biology 1 - The Life Sciences » 2019 » Midterm Exam
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biology 1 - The Life Sciences ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Which of the following is not a characteristic of all living organisms?
A.
Multicellularity
B.
Energy Utilization
C.
Order
D.
Homeostasis
Question #2
Which of the following is properly characterized as a producer?
A.
Both a mushroom and an oak tree
B.
An eagle
C.
An oak tree
D.
A mushroom
Question #3
Which two levels are farthest apart on the hierarchy of biological organization ?
A.
Tissue and organ
B.
Ecosystem and biosphere
C.
Atom and Cell
D.
Organism and population
Question #4
Which type of chemical bond involves the sharing of electrons in the outer shells of atoms?
A.
James Bonds
B.
Ionic bonds
C.
Hydrogen bonds
D.
Covalent bonds
Question #5
An atom with a positive charge has
A.
more protons than electrons
B.
more neutrons than protons
C.
equal numbers of protons, electrons, and neutrons
D.
more electrons than protons
Question #6
Which of the following is an example of an element?
A.
Carbon
B.
Glucose
C.
Water
D.
Salt
Question #7
Which is true regarding saturated fats?
A.
They are associated with animal fat
B.
All these answers are associated with saturated fats
C.
They have a higher melting point
D.
They lack double bonded carbon atoms in their fatty acids
Question #8
Enzymes function by increasing the energy of activation of a chemical reaction so that the reaction can go faster.
A.
TRUE
B.
FALSE
Question #9
If a cell has a lower concentration of solutes inside it’s fluid than its surrounding environment, the cell is in _________
A.
a platonic environment
B.
a hypotonic environment
C.
a hypertonic environment
D.
an isotonic environment
Question #10
Cell cytoplasm is primarily composed of ___________.
A.
lipid
B.
protein
C.
carbohydrate
D.
water
Question #11
Which organelle is a principle site of cell product packaging and storage?
A.
Mitochondrion
B.
Golgi apparatus
C.
Rough Endoplasmic Reticulum (ER)
D.
Lysosome
Question #12
The role of messenger RNA is to _______________.
A.
to assemble amino acids into a polypeptide chain.
B.
to be a copy of a portion of the DNA molecule.
C.
bring the appropriate amino acids to the ribosome.
D.
to copy the appropriate DNA sequence for a particular protein.
Question #13
Where would I go to watch active protein synthesis?
A.
smooth endoplasmic reticulum
B.
mitochondria
C.
lysosomes
D.
rough endoplasmic reticulum
Question #14
Which is produced when your muscles enter into anaerobic respiration?
A.
ATP
B.
Sugar
C.
Lactic acid
D.
Both Lactic acid and ATP
Question #15
Which of the following does not occur during prophase?
A.
The initial formation of the spindle fibers
B.
The condensation of the chromosomes
C.
Formation of the nuclear membrane
D.
None of the above (all occur during prophase)
E.
None of the above (all occur during prophase)
Question #16
Which of the following events in cellular respiration produces the most ATP?
A.
Calvin Cycle
B.
Gycolysis
C.
Krebs Cycle
D.
Electron Transport Chain
Question #17
Which organelle is specifically associated with photosynthesis?
A.
Chloroplasts
B.
Mitochondria
C.
Centrosomes
D.
Ribosomes
Question #18
Which of the following is an example of an electron carrier (transport) molecule?
A.
NADH
B.
ATP
C.
Acetyl-CoA
D.
Glucose
Question #19
Which of the following is the smallest unit of life?
A.
The organelle
B.
The cell
C.
The organic molecule (like DNA)
D.
The organism
Question #20
_____________ are found in plant cells but not animal cells.
A.
Mitochondria
B.
Central water vacuoles
C.
Cell membranes
D.
Rough endoplasmic reticula
Question #21
Which of the following processes produces O2 as a product?
A.
hydrolysis
B.
condensation synthesis
C.
photosynthesis
D.
cell respiration
Question #22
Which phase of mitosis involves the lining up of the chromosomes?
A.
Metaphase
B.
Anaphase
C.
Prophase
D.
Telophase
Question #23
Beryllium's atomic mass is 9 and its atomic number is 4. How many neutrons are found in a Beryllium atom?
A.
5
B.
14
C.
13
D.
9
Question #24
Isotopes are elements that vary in their number of neutrons.
A.
TRUE
B.
FALSE
Question #25
Within a single cell, which of the following is physically the smallest ?
A.
Cell membrane
B.
Mitochondrion
C.
Phospholipid molecule
D.
Nuclear envelope
Question #26
The body uses ____________ to maintain a constant pH.
A.
Carbon dioxide
B.
Water
C.
Buffers
D.
Lipids
Question #27
Theatomic mass of an atom only refers to the total number of protons in the nucleus.
A.
FALSE
B.
TRUE
Question #28
Organic molecules are typically polymers.
A.
FALSE
B.
TRUE
Question #29
Electrons orbit the nucleus because _______________.
A.
of the negatively-charged neutrons--like attracts like
B.
of the positively-charged protons
C.
of the negative-charged protons
D.
It's a trick question--electrons don't orbit the nucleus.
Question #30
Entropy is
A.
disorder
B.
simplicity
C.
order
D.
complexity
Question #31
How many of the following organelles occur in your skin cells: mitochondria, ribosomes, nucleus, lysosomes, chloroplasts, vacuole, ER
A.
1
B.
3
C.
4
D.
5
E.
6
F.
7
Question #32
A ball at the top of a hill is an example of______ and a ball rolling down the hill is an example of ______.
A.
exergonic reaction; endergonic reaction
B.
kinetic energy; potential energy
C.
noncompetitive inhibition; competitive inhibition
D.
potential energy; kinetic energy
Question #33
Which of the following is the correct order of the three stages of aerobic respiration?
A.
krebs cycle, glycolysis, electron transport
B.
electron transport, glycolysis, krebs cycle
C.
glycolysis, krebs cycle, electron transport chain
D.
electron transport chain, krebs cycle, glycolysis
Question #34
In plants, Photosystem II is known as the "NADPH-producing Photosystem"
A.
FALSE
B.
TRUE
Question #35
Plant cells function best when in a hypotonic environment.
A.
FALSE
B.
TRUE
Question #36
Plants perform photosynthesis but not cellular respiration.
A.
FALSE
B.
TRUE
Question #37
Cellular respiration of one molecule of glucose ultimately yields 136 molecules of ATP
A.
TRUE
B.
FALSE
Question #38
Cell membranes are semipermeable, as water is not allowed to pass through them freely.
A.
TRUE
B.
FALSE
Question #39
CAM photosynthesis is a special process that evolved in those plants that live in cooler, more low light conditions.
A.
FALSE
B.
TRUE
Question #40
Which color of light is least used as an energy source to power photosynthesis?
A.
Yellow
B.
Green
C.
Red
D.
Blue
Question #41
Which organelle is responsible for the making of ribosomes?
A.
Rough endoplasmic reticulum
B.
Nucleolus
C.
Golgi apparatus
D.
Lysosome
Question #42
Which organelle is responsible for the synthesis of lipids?
A.
Smooth endoplasmic reticulum
B.
The nucleus
C.
Mitochondrion
D.
Rough endoplasmic reticulum
Question #43
All mutations are harmful
A.
TRUE
B.
FALSE
Question #44
How many codons are in the mRNA sequence GGAAUGAAACAGGAACCC?
A.
0
B.
18
C.
6
D.
3
Question #45
How many different types of bases are used to encode all the genetic in a molecule of DNA?
A.
4
B.
2
C.
20
D.
22223
Question #46
The majority of a cell's life cycle is spent in
A.
Interphase
B.
G2 phase
C.
Mitosis
D.
Cytokinesis
Question #47
A chromosome is made of
A.
DNA
B.
Histones
C.
Chromatin
D.
All of the above
Question #48
Proteins are made up of ______ different kinds of amino acid.
A.
20
B.
46
C.
4
D.
hundreds of
Question #49
Many viruses are inhibited by antibiotics
A.
FALSE
B.
TRUE
Question #50
In a "silent" mutation
A.
the codon that mutates does not cause a change in the amino acid specified.
B.
the mutation is not in DNA.
C.
the codon that mutates causes a change in the amino acid specified.
D.
the codon that mutates causes a stop codon to occur instead of the placement of an amino acid.
Question #51
In Translation, what does the translating?
A.
the ribosome
B.
the amino acids
C.
the transfer RNA
D.
RNA polymerase
Question #52
The chemotherapy drug taxol inhibits microtubule function. A cell treated with taxol would become stuck in which phase?
A.
anaphase
B.
telophase
C.
prophase
Question #53
What is the main function of DNA?
A.
to speed up cell reactions
B.
to provide structural support to the cell
C.
to encode proteins
D.
to produce ATP
E.
All of the above
Question #54
So, in terms of osmosis, what happens when you mistakingly (I hope it was a mistake) put a salt water fish into a freshwater fishtank?
A.
the fish doesn't consume enough water and probably dies
B.
The fish is fine, it can't change its water consumption to fit the environment
C.
the fish consumes too much water and probably dies
D.
None of the above
Question #55
A communityis defined as a group of the same species occupying a single habitat.
A.
TRUE
B.
FALSE
Question #56
Which of the following events in cellular respiration harvests the most electrons from glucose?
A.
Electron Transport Chain
B.
Krebs Cycle
C.
Gycolysis
D.
Calvin Cycle
Question #57
If a cell has a higher concentration of solutes inside its fluid than its surrounding environment, the cell is in _________
A.
a platonic environment
B.
an isotonic environment
C.
a hypotonic environment
D.
a hypertonic environment
Question #58
The role of transfer RNA is to _______________.
A.
to copy the appropriate DNA sequence for a particular protein.
B.
to assemble amino acids into a polypeptide chain.
C.
to be a copy of a portion of the DNA molecule.
D.
bring the appropriate amino acids to the ribosome.
Question #59
Which of the following processes produces O2 as a product?
A.
hydrolysis
B.
photosynthesis
C.
cell respiration
D.
condensation synthesis
Question #60
Somatic cells perform a form of cell division called ____________.
A.
Binary division
B.
Meiosis
C.
mitosis
D.
Binary reduction
Question #61
Which of the following events in meiosis specifically results in shuffling of a species' DNA?
A.
Independent assortment
B.
All of the choices are correct
C.
Chromosomal reduction
D.
Crossing over
Question #62
Mitosis occurs in support of sexual reproduction.
A.
TRUE
B.
FALSE
Question #63
Which is true regarding unsaturated fats?
A.
All of these answers are associated with saturated fats
B.
They are associated with animal fat
C.
They have a higher melting point
D.
They have double bonded carbon atoms in their fatty acids
Question #64
Which level of protein structure involves the formation of an alpha helix or beat pleated sheet?
A.
Tertiary structure
B.
Quarternary structure
C.
Primary structure
D.
Secondary structure
Question #65
Where would I go to watch active cellular respiration?
A.
mitochondria
B.
lysosomes
C.
rough endoplasmic reticulum
D.
smooth endoplasmic reticulum
Question #66
____________ prevents leaking between neighboring cells.
A.
Tight junctions
B.
____________ prevents leaking between neighboring cells.
C.
Centrioles
D.
Gap junctions
Question #67
Which is the correct order of steps in the Scientific Method?,,
A.
Observation, Question, Hypothesis, Prediction, Experiment, Conclusion
B.
Prediction, Hypothesis, Observation, Question, Experiment, Conclusion
C.
Observation, Hypothesis, Question, Experiment, Conclusion, Prediction
D.
Observation, Hypothesis, Prediction, Experiment, Question, Conclusion
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biology 1 - The Life Sciences ] course for $25 USD.
Existing Quiz Clients Login here