Navigation » List of Schools » East Los Angeles College » Biology » Biology 003 – Introduction to Biology » Summer 2020 » Exam 1
Below are the questions for the exam with the choices of answers:
Question #1
A By checking whether the source of information is primary
B By checking whether the information was peer-reviewed
C All of the other answer options are ways to check whether a source is reliable
D By checking whether the authors are well qualified
Question #2
A A primary source is the original material published by the scientists, whereas a secondary source is a description of the original material.
B There is no difference between primary and secondary sources.
C A primary source is the original material published by the scientists, whereas a secondary source is the raw data before scientists publish.
D A primary source is the raw data before scientists publish, whereas a secondary source is a description of the original material.
Question #3
A This study was published in a newspaper.
B This study was not evaluated by other scientists.
C This study was evaluated by qualified and impartial experts before being published.
D This study can now be viewed on the Internet.
Question #4
A Make two batches of cookies, one with bleached flour and one with unbleached flour; one taster tries both types and ranks which type they like best.
B Make two batches of cookies, one with bleached flour and one with unbleached flour; twenty tasters try both types and rank which type they like best.
C Make two batches of cookies, both with bleached flour; one taster tries both types and ranks which type they like best.
D Make two batches of cookies, one with bleached flour and one with unbleached flour; twenty tasters try both types without knowing which ones they are eating and rank which type they like best.
Question #5
A Neither the test group nor the researchers know whether the test group is receiving a placebo or the actual treatment until all the data are collected.
B The test group knows whether they are receiving a placebo or the actual treatment, and so do the researchers.
C The test group knows whether they are receiving a placebo or the actual treatment, but the researchers do not know until all the data are collected.
D The test group does not know whether they are receiving a placebo or the actual treatment, but the researchers do.
Question #6
A The placebo
B The hypothesis
C The controlled experiment
D The dependent variable
Question #7
A The fertilizer amount
B The tomato yield at the end of the growing season
C The temperature
D The plant size at the end of the growing season
Question #8
A The temperature
B The plant size at the end of the growing season
C The fertilizer amount
D The tomato yield at the end of the growing season
Question #9
A All of the other answer options are important characteristics of hypotheses.
B testable
C repeatable
D falsifiable
Question #10
A A guess
B A proposed explanation for an observed phenomenon
C A hypothesis that has been supported by the evidence of one experiment
D A hypothesis that has been supported by a large number of experiments
Question #11
A The flow of information from DNA to proteins
B The theory of evolution by natural selection
C The transformation of energy and matter
D The relationship between structure and function
Question #12
A is a linear process that must be precisely followed at all times
B is undertaken only by trained scientists in a controlled laboratory setting
C is a rough recipe for answering questions, but the steps need not always need to be performed in the same order
D is the means by which absolute truth can be uncovered
Question #13
A Making a prediction
B Carrying out an experiment
C Developing a hypothesis
D Making an observation
Question #14
A Skin consists of multiple cell types functioning as a single integrated unit.
B Skin consists of multiple tissue types that cooperate to perform a specific task.
C Skin consists of a single cell type.
D Skin is a vital component of multiple organ systems.
Question #15
A species
B population
C ecosystem
D community
Question #16
A Biosphere → Community → Population → Tissue → Organ → Cell → Atom → Molecule
B Community → Ecosystem → Population → Tissue → Organ → Cell → Organelle → Atom
C Ecosystem → Population → Community → Organ system → Organ → Cell → Molecule → Atom
D Ecosystem → Community → Population → Organ → Tissue → Cell → Molecule → Atom
Question #17
A Yes, it possesses all of the requirements for life.
B Yes, it possesses enough of the requirements for life to be considered living.
C No, it does not possess any of the requirements for life.
D No, it does not possess all of the requirements for life.
Question #18
A A molecule
B A cell
C An atom
D An organism
Question #19
A in the cytoplasm
B in the rough endoplasmic reticulum
C in the smooth endoplasmic reticulum
D in the Golgi apparatus
Question #20
A Proteins hold the instructions on how to make DNA.
B DNA is not linked to the production of proteins.
C DNA holds the instructions for the cells on how to make proteins.
D DNA is the end point of protein production that allows cells to finish making proteins.
Question #21
A Chloroplasts
B Nucleus
C Lysosome
D Mitochondria
Question #22
A vesicle
B flagellum
C cilium
D pilus
Question #23
A An energy molecule
B A carbohydrate
C An information storage molecule
D A protein
Question #24
A Nucleus, smooth endoplasmic reticulum, Golgi apparatus
B Nucleus, Golgi apparatus, ribosome
C Ribosome, Golgi apparatus
D Golgi apparatus, ribosome, rough endoplasmic reticulum
Question #25
A Replication
B Translocation
C Translation
D Transcription
Question #26
A Transcription occurs in the cytoplasm, and translation occurs in the nucleus.
B Transcription and translation both occur in the cytoplasm.
C Transcription and translation both occur in the nucleus.
D Transcription occurs in the nucleus, and translation occurs in the cytoplasm.
Question #27
A Chromosomes are strands of DNA, tightly wrapped up, that are located in the nucleus.
B Chromosomes are strands of RNA, tightly wrapped up, that are in the cytoplasm.
C Chromosomes are strands of RNA, loosely wrapped up, that are located everywhere in the cell.
D Chromosomes are strands of DNA, tightly wrapped up, that are located everywhere in the cell.
Question #28
A A substance goes from an area of low concentration to an area of high concentration, and this releases energy.
B A substance goes from an area of high concentration to an area of low concentration, and this requires energy.
C A substance goes from an area of low concentration to an area of high concentration, and this requires energy.
D A substance goes from an area of high concentration to an area of low concentration, and this releases energy.
Question #29
A hydrosmosis
B simple diffusion
C facilitated diffusion
D osmosis
Question #30
A The plasma membrane
B The chloroplast
C The cell wall
D The nucleus
Question #31
A Mitochondria
B Vacuole
C Cell wall
D Chloroplast
Question #32
A It is moving.
B It has ribosomes.
C It has a nucleus.
D It has DNA.
Question #33
A Eukaryotic cells evolved a lot earlier (over a billion years) than prokaryotic cells.
B Scientists do not have any evidence regarding whether prokaryotic or eukaryotic cells evolved first.
C Prokaryotic cells and eukaryotic cells evolved at about the same time.
D Prokaryotic cells evolved a lot earlier (over a billion years) than eukaryotic cells.
Question #34
A Cell wall
B Plasmids
C Ribosomes
D Plasma membrane
Question #35
A Hydrogen bond
B Peptide bond
C Polar bond
D Protein bond
Question #36
A carbohydrate
B protein
C monomer
D lipid
Question #37
A The reaction will proceed more quickly.
B The reaction will reverse.
C The reaction will proceed more slowly.
D The reaction will stop completely.
Question #38
A The protein has a new shape.
B All of the other answer options might happen
C The amino acid chain folds incorrectly.
D The protein can no longer function properly.
Question #39
A Unsaturated fat
B Trans fat
C Cholesterol
D Saturated fat
Question #40
A True, because high levels of cholesterol lead to increased heart disease.
B False, because cholesterol levels are not related to human health.
C False, because some types cholesterol increase heart disease, but other types are necessary, especially in the plasma membrane.
D True, because high levels of cholesterol lead to obesity.
Question #41
A hydrosynthetic reactions
B hydrolysis reactions
C dehydration synthesis reactions
D osmotic reactions
Question #42
A Carbohydrates, proteins, lipids, and nucleic acids
B Carbohydrates, lipids, proteins, and sugars
C Carbohydrates, lipids, proteins, and enzymes
D Carbohydrates, proteins, nucleic acids, and sugars
Question #43
A neutral
B alkaline
C acidic
D basic
Question #44
A Water is a heavy substance, and as such can disrupt pre-existing bonds.
B Water is highly cohesive and adhesive, which allows it to bind to different substances as a solvent.
C Water is very dense in its liquid state, which allows it to bind to different substances as a solvent.
D Water has a polar nature, and as such its polar molecules will bind to substances that have positive or negative charges.
Question #45
A ionic
B hydrogen
C nonpolar
D covalent
Question #46
A 6 neutrons and 8 electrons
B 7 neutrons and 7 electrons
C 6 neutrons and 6 electrons
D 8 neutrons and 6 electrons
Question #47
A isotope
B chemical properties
C ion state
D chemical element
Question #48
A Nitrogen
B Carbon
C Oxygen
D Calcium
Question #49
A There are chemical reactions close to you right now.
B The products of a chemical reaction always have the same mass as the reactants.
C During a chemical reaction, molecules are rearranged.
D During a chemical reaction, atoms of one element can be converted into a different element.
Question #50
A C10H8 and 12 O2
B 12 O2 and 4 H2O
C C10H8 and 10 CO2
D 10 CO2 and 4 H2O