BIOL 1103: Exam 1
44 Cards in this Set
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d. Photosynthesis
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All of the following are characteristics possessed by all living things except:
a. growth
b. reproduction
c. homeostasis
d. photosynthesis
e. response to stimuli
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c. Helium
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Which of the following does not belong?
a. Oxygen
b. Nitrogen
c. Helium
d. Carbon
e. Sulfur
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a. long-term smokers have poorer heart health than non-smokers
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Smoking causes accumulation of materials in the lungs decreasing the lungs ability to absorb oxygen. Long term smoking causes the accumulation of the material in the lungs. decrease lung capacity increases workload of the heart. Which hypothesis can you make?
a. long-term smokers have po…
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a. provide a basis of comparison to an experimental group
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The role of a control in an experiment is to:
a. provide a basis of comparison to an experimental group
b. prove that a hypothesis is correct and ensure responsibility
c. ensure the experiment can be repeated
d. prove a hypothesis correct
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b. Francisco Redi
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Which historical figure(s) did experiments that were consistent w/ the concept of biogenesis ?
a. Aristotle
b. Francisco Redi
c. Paracelsus
d. B and C only
e. A, B, and C
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d. control
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Pasteur expected that bacteria would appear in the flask w/ the standard neck. In his experiment, the standard neck flask served as a/an:
a. variable
b. statistic
c. hypothesis
d. control
e. Observation
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b. 22
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What would be the atomic number of an element with 11 neutrons, and 22 electrons?
a. Unable to calculate with the limited amount of information given
b. 22
c. 44
d. 33
e. 11
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c. the loss or gain of one or more elections
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Which of the following results in an ionic bond?
a. the sharing of a pair of elections
b. the attraction between two polar atoms
c. the loss or gain of one or more elections
d. an isotope bonding with another isotope
e. both B and C
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e. fill their outer shells with electrons
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Atoms form bonds to:
a. obtain and equal number of protons and electrons
b. obtain an equal amount of protons and neutrons
c. fill their outer shells with neutrons
d. fill their outer shells with protons
e. fill their outer shells with electrons
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d. one more neutron
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Compared to 31P, the radioactive isotope 32P has
a. one more electron
b. a different charge
c. a different atomic number
d. one more neutron
e. one more proton
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a. chemical formula but a different arrangement of atoms
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Butane and isobutane are isomers. This means they have the same:
a. chemical formula but a different arrangement of atoms
b. chemical formula but can only exist as ring structures
c. the arrangement of atoms but different chemical formula
d. number of carbon atoms but different number…
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e. A, B, and C
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Which of the following statements are true?
a. The radioactive isotope C-14 decays into nitrogen
b. the half-life of C-14 is 5,730
c. the "iceman" Oetzi lived sometime between 5111 and 5381 yrs ago
d. A and B only
e. A, B, and C
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d. it is a polarized molecule; oxygen is slightly positive and hydrogens are slightly negative
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All of the following are true about water except:
a. it is less dense as a solid than as a liquid
b. neighboring molecules are held together by hydrogen bonds
c. it can dissolve molecules that have an electrical charge
d. it is a polarized molecule where the oxygen is slightly positi…
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c. the number of hydrogen ions increase
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What happens when an acid mixes in water?
a. the number of hydroxide ions increases
b. the pH becomes 7
c. the number of hydrogen ions increase
d. the solution cools down
e. A and B are correct
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d. negatively charged
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Based on your knowledge of the polarity of water, the solute molecule is most likely
a. neutral in charge
b. hydrophobic
c. positively charged
d. negatively charged
e. nonpolar
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e. hydrogen bond
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The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. What is this attraction called?
a. a ionic bond
b. a hydrophilic bond
c. a covalent bond
d. a hydrophobic bond
e. hydrogen bond
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e. both A and D
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Which of the following are hydrophobic?
a. fats
b. sugars
c. amino acids
d. steroids
e. both A and D
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a. carbohydrates
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Hydroxyl groups are commonly found in:
a. carbohydrates
b. amino acids
c. fatty acids
d. DNA
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c. carboxyl
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Which of the following functional groups are acidic?
a. phosphate
b. amino
c. carboxyl
d. hydroxyl
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c. the presence of carbon, hydrogen, and oxygen in a ratio of 1:2:1
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Carbohydrates such as glucose are characterized by which of the following?
A. the presence of an amino and a carboxyl group
b. the presence of carbon and hydrogen in a ratio of 1:2
c. the presence of carbon, hydrogen, and oxygen in a ratio of 1:2:1
d. the presence of glycerol and fatt…
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a. sucrose
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All of the following are monosaccharides except:
a. sucrose
b. glucose
c. fructose
d. galactose
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e. fungi
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Chitin is a polysaccharide found in the cell walls of
a. all eukaryotes
b. animals
c. plants
d. bacteria
e. fungi
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d. a non-polar molecule
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Which of the following would be most likely to dissolve in olive oil?
a. a hydrophilic molecule
b. a polar molecule
c. vinegar
d. a non-polar molecule
e. an alcohol
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a. they are both lipids
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What do fatty acids and testosterone have in common?
a. they are both lipids
b. they are both steroids
c. they are both hormones
d. they are both proteins
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b. amount of energy the food contains
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Which of the following are composed of only carbon, hydrogen, and oxygen?
a. amount of minerals and vitamins a food contains
b. amount of energy the food contains
c. weight of food
d. nutritional value of food
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d. trans fat
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Which of the following types of fat are the least healthy?
a. polyunsaturated fat
b. saturated fat
c. monounsaturated fat
d. trans fat
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a. saturated raise LDL levels, which contribute to heart disease
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Why are saturated fats considered a less healthy nutrient?
a. saturated raise LDL levels, which contribute to heart disease
b. because saturated fats are from animal sources, they can produce allergic reactions
c. Saturated fats connot be used for energy as the other fats can
d. sat…
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b. glycemic load
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The measure of how blood glucose levels are affected by a given amount of carbohydrate is:
a. insulin index
b. glycemic load
c. monosaccharide ratio
d. sugar input
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c. whole grain foods
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In a traditional food pyramid, which type of food would be closest to the base?
a. fish and poultry
b. dairy products
c. whole grain foods
d. fruits
e. vegetables
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a. saturated fats have multiple double bonds in the carbon chains of their fatty acids
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All of the following statements are true except:
a. saturated fats have multiple double bonds in the carbon chains of their fatty acids
b. the human liver stores some excess glucose as the polysaccharide glycogen
c. Olemargerine contains more trans fats that does butter
d. LDL cholest…
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a. guanine
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In the double-helix structure of nuclei acids, cytosine hydrogen bonds to
a. guanine
b. thymine
c. adenine
d. deoxyribose
e. ribose
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c. an E.R.
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All of the following are part of a prokaryotic cell except:
a. ribosomes
b. a cell wall
c. an E.R.
d. a cell membrane
e. DNA
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c. Robert Hooke
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Who was the first person to refer to a single unit within a living organism as a "cell"?
a. Louis Pasteur
b. Anton Van Leeuwenhoek
c. Robert Hooke
d. Gregor Mendel
e. none of the above
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c. cell wall
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Which of the following is not one of the five principal components of a eukaryotic cell?
a. cytosol
b. cytoskeleton
c. cell wall
d. nucleus
e. plasma membrane
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d. to combine ribosomal RNA with proteins to form almost complete ribosomes
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Which of the following is a function of the nucleolus?
a. to allow mRNA to leave the nucleus
b. to act as the site of DNA synthesis
c. to synthesize messenger RNA
d. to combine ribosomal RNA with proteins to form almost complete ribosomes
e. to attach polysaccharides to protein molec…
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c. insulin is carried in small sacks of membrane (vesicles) that move from the ER to the Golgi Apparatus and then to the plasma membrane
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How is insulin transported from the ER to the surface of the cell?
a. insulin is carried by lysosomes that empty their contents outside the cell
b. insulin moves through plasmodesmata to the surface of the call
c. insulin is carried in small sacks of membrane (vesicles) that move from …
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a. mitochondria and chloroplasts
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Which organlles are believed to have originated from free-standing bacteria ingested by ancient eukaryotic cells?
a. mitochondria and chloroplasts
b. mitochondria and Golgi complex
c. chloroplasts and lysosomes
d. chloroplasts and ribosomes
e. lysosomes and ribosomes
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b. allow cells to communicate w/ each other
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Plasmodesmata and gap junctions are similar in that they:
a. are both involved in protein synthesis
b. allow cells to communicate w/ each other
c. provide structural support to cells
d. form a protective lining around cells
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e. vacuole
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Which of the following is a compartment that often takes uo much of the volume of a plant cell?
a. Golgi apparatus
b. chloroplast
c. lysosome
d. mitochondrion
e. vacuole
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b. protein synthesis
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Which of the following is not a function of plasma membrane proteins?
a. communication
b. protein synthesis
c. transport
d. recognition
e. structural support
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b. phospholipids and proteins
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Which of the following types of molecules are the major structural components of the cell membrane?
a. glycoproteins and cholesterol
b. phospholipids and proteins
c. proteins and cellulose
d. nucleic acids and proteins
e. phospholipids and cellulose
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c. channel proteins that allow water molecules to move very rapidly across a plasma membrane by facilitated diffusion
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What are aquaporins?
a. Channel proteins that allow water molecules to move very rapidly across a plasma membrane by active transport
c. channel proteins that allow water molecules to move very rapidly across a plasma membrane by facilitated diffusion
d. polar hydrophobic membrane prot…
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b. water is diffusing across the plasma membrane from a regionof lower solute concn. to a region of higher solute concn
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When a human cell is placed into water, it swells. This is said to be due to osmosis. What's happening to make the cell swell?
a.solutes are being drawn into the cell across the plasma mem.
b. water is diffusing across the plasma membrane from a regionof lower solute concn. to a region …
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c. phagocytosis
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White blood cells engulf bacteria through which of teh following process?
a. pinocytosis
b. receptor-mediated exocytosis
c. phagocytosis
d. osmosis
e. both A and B
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BIOL 1103: Exam 1