Download Study guide 1st semester

1st Semester Study Guide
1 The following statements were taken from the procedures of four different
investigations. The statement from which investigation is an example of repetition?
A Investigation 1
B Investigation 2
C Investigation 3
D Investigation 4
2 A hypothesis is a possible explanation that must be
A testable
B expendable
C seen or touched
D always correct ON
3 One centimeter (cm) is equal to how many millimeters (mm)?
A1
B 10
C 100
D 1000
4 Which of the follow do scientists NOT use to support ideas?
A experiments
B opinions
C evidence
D investigations
5 Which of the following is unethical behavior in scientific investigations?
A allowing peers to review investigations
B following guidelines for medical experiments
C reporting inaccurate data
D basing investigations on someone else's workON
6 Scientific thinking can be used
A only by scientists
B only during experiments
C by all living things
D by everyone in daily life
7 A scientist noted that the number of fish in Lake Harris was declining. This was a(n)
A hypothesis
B theory
C observation
D control
8 The variable that is measured in an experiment is the _________ variable.
A dependent
B independent
C control
D experimentalO ON
9 A general explanation for a broad range of data is called a
A hypothesis
B theory
C law
D prediction
10 A scientific theory is
A absolutely certain and never questioned
B unchangeable
C revised as new evidence is presented
D a controlled experiment
1 1 The variable that is manipulated or different form the control and experimental group is
called the
A dependent variable
B independent variable
C control variable
D indecisive variable
GO ON
12 Models allow us to study objects that are difficult to observe directly, one of the limitations
of models is that
A they are usually too expensive to make
B They break easily during experiments
C They are approximations and not exact replicas
D They are too exact and therefore cover too many variables
13 Which of the following is not an accepted method different scientific fields use
A experimentation
B create models
C conduct research
D creating data to match the hypothesis
14 A pattern or event that is always true
A Law
B Theory
C Hypothesis
D ObservationO ON
1 5 When new evidence is presented that contradicts a theory, then
A the new evidence is considered false
B the theory becomes a law
C the original theory is changed
D nothing changes
16 Variables that do not change in an experiment are called
A outcome variables
B variant variables
C constant variables
D descendant variables
1 7 You know that on game day the football team always wear their jerseys to school. During
lunch, you saw five football players in their jerseys so you know they must have a game
today. This is an example of
A an observation
B an inference
C a hypothesis
D a predictionGO ON
18 Scientists writing articles, speaking at conferences or exchanging information on the
internet is an example of
A drawing conclusions
B testing hypothesis
C analyzing data
D communicating results
19 You conducted an experiment to find out which shoe brand helps you run the fastest. You
just finished running and timing yourself in each shoe. What is the next step?
A analyze data
B draw conclusions
C communicate results
D ask questions
20 To gather information by using one or more of your senses is to be making an
A observation
B inference
C prediction
D hypothesisGO ON
21 Which characteristic of life is cells having structure referring to?
A organization
B growth
C development
D respond to stimuli
22 In multicellular organisms, _______ happens as cells become specialized into different
cell types.
A growth
B development
C homeostasis
D response to stimuli
23 A tree is NOT alive because it lacks which characteristic of life?
A use energy
B reproduction
C respond to stimuli
D it is aliveGO ON
24 All living things maintain a balance within their cells and with the environment through
the process of
A growth
B development
C homeosapiens
D homeostasis
25 Plants growing toward the light is an example of which characteristic of life?
A response to internal stimuli
B homeostasis
C response to external stimuli
D growth
26 Carolus Linneau's naming system which gives each organism a two word scientific name is
called
A cladogram
B binomial nomenclature
C dichotomous key
D monera ON
27 All organisms are classified into one of three domains, select the answer which is NOT one
of those domains.
A Bacteria
B Archaea
C Eukarya
D Prokarya
28 The tool that is a series of questions that will lead the user to the identification of an
unknown organism is called a
A cladogram
B binomial nomenclature
C dichotomous key
D genus species grouping
29 Digesting food, sleeping, thinking and reading require which characteristic of life in order
to perform?
A response to stimuli
B homeostasis
C organization
D use energyO ON
30 Which of the following classification is in order from general to specific?
A species, genus, family, order, class, phylum, kingdom, domain
B domain, kingdom, phylum, class, order, family, genus, species
C kingdom, domain, phylum, class, order, family, genus, species
D phylum, kingdom, domain, class, order, family, genus, species
31 Nucleic acids contain which of the following
A amino acids
B proteins
C genetic material
D energy
32 Lipids are important because
A they store genetic material
B they fight disease
C they do not mix with water
D they are made up of 70% of water
GO ON
33 The carbohydrate in the cell walls of plants that provides structural support is
A fructose
B sucrose
C cellulose
D glucose
34 Identify the organelle that protects an animal cell from the outside environment
A cell wall
B cell membrane
C Golgi apparatus
D cytoplasm
35 The jelly like substance that provides support for organelles inside the cell
A cytoskeleton
B cytofluid
C cytoprotecta
D cytoplasmO ON
36 This organelle directs all cell activity
A cell wall
B nuclear
C nucleus
D nucleic acid
37 The stiff, rigid part of a plant cell that protects it from harmful attacks or virus
A cell membrane
B cytoplasm
C cellular block
D cell wall
38 On which organelle might ribosomes produce proteins
A Golgi apparatus
B ribosomes do not produce proteins
C smooth ER
D rough ERGO ON
39 Glucose is broken down into a usable form of energy called ATP in the
A chloroplast
B nucleus
C mitochondria
D adenosine triphosphate
40 Light energy is converted into food in the
A chlorophyll
B chloroplast
C mitochondria
D nucleus
41 The organelle that packages proteins is the
A smooth ER
B rough ER
C vesicle
D Golgi apparatusGO ON
42 Food, water and waste are stored in the
A vacuum
B vesicle
C vibernum
D vacuole
43 Lysosome
A digest old cell parts
B store waste, water and food
C transport materials
D produce proteins
44 Movement of materials from an area of high concentration to low concentration is called
A Active transport
B endocytosis
C exocytosis
D Passive transport
GO ON
45 When water concentration is even on both sides of a cell membrane
A osmosis
B diffusion
C equilibrium
D facilitated diffusion
46 Active transport is
A movement of materials without using the cell's energy
B movement of materials by using the cell's energy
C releasing contents outside the cell
D moving water across a cell membrane
47 Endocytosis is
A when a cell releases contents outside the cell
B when the cell membrane surrounds a substance to bring it into the cell
C a process to eliminate waste
D how energy is storedN
48 Exocytosis is
A when a cell releases its contents outside the cell by pushing a vesicle to the cell
membrane
B when a cell takes in a substance by surrounding it
C using channel proteins
D using carrier proteins
49 Select the statement which is not part of Cell Theory
A all cells come from preexisting cells
B the cell is the smallest unit of life
C all living things are composed of one or more cells
D all living cells are composed of one or more cells
50 For photosynthesis to occur, what is needed other than water?
A oxygen and light energy
B carbon dioxide and light energy
C oxygen and carbon dioxide
D glucose and light energyO ON
5 1 For cellular respiration to occur, what is needed?
A glucose and water
B oxygen and water
C carbon dioxide and glucose
D glucose and oxygen
52 The second step of cellular respiration occurs is the
A cytoplasm
B chloroplast
C mitochondria
D fermentation
53 If the all the chloroplasts were destroyed in a plant cell, what would happen to the plant?
Choose the best answer.
A cellular respiration could not occur
B there would be nothing to absorb the light energy
C carbon dioxide could not be given off
D photosynthesis could not occurO ON
54 Most of the life of any cell is spent in a period of growth called
A interphase
B prophase
C telophase
D anaphase
55 Which choice correctly describes the two phases of cell cycle?
A cells grow and develop during interphase and reproduce during mitotic phase
B cells grow an develop during mitotic phase and reproduce during interphase
C nucleus divides during interphase and cytoplasm divides during mitotic phase
D nucleus of a cell divides during mitotic phase and the cytoplasm divides during
interphase
56 Which of the following is not a result of cell division?
A nutrition
B repair
C reproduction
D growthGO ON
5 7 Which occurs after telophase?
A chromosomes line up in the center of the cell
B sister chromatids separate
C two identical nuclei are formed
D the nucleolus disappears and the nuclear membrane breaks down
58 What occurs during metaphase?
A chromosomes line up in the center of the cell
B sister chromatids separate
C two identical nuclei are formed
D nucleolus disappears and the nuclear membrane breaks down
59 Each human skin cell has ____ pairs of chromosomes
A 18
B 23
C 13
D 46 ON
60 Identify the two stages of the mitotic phase
A mitosis and interphase
B cytokinesis and interphase
C mitosis and cytokinesis
D interphase and metaphase
61 After meiosis is complete, how many chromosomes does each cell have compared to the
original cell
A same number
B twice as many
C half as many
D three times as many
62 Kari has two pet rats with black fur. When her rats mated, one of their four offspring had
white fur, and the other three had black fur. Which is most likely true for Kari's rats?
A Both parents are homozygous for white fur trait which is recessive
B Both parents are heterozygous for the white-fur trait, which is dominant.
C Both parents are heterozygous for the white-fur trait, which is recessive.
D Both parents are heterozygous for the white-fur trait, which is sex-linked.O ON
63 The passing of physical characteristics from parent to offspring is __________.
A genetics
B traits
C fertilization
D heredity
64 The color of a male bunny is black. The color black is the bunny’s _______.
A genotype
B phenotype
C allele
D codominance
65 What does DNA do for a cell?
A fights disease
B converts glucose into useable energy
C gives directions on how to grow and behave
D none of the aboveO ON
66
Which is the correct gene combination for the parents shown in the diagram?
A GG x GG
B gg x gg
C gg x GG
D Gg x GgO ON
67
The gene for curled ears (C) is dominant over the gene for straight ears (c). The picture
below shows a cat with curled ears (Cc) and a cat with straight ears (cc). What percent of
the offspring are expected to have curled ears as a result of a cross between the cats
shown?
A 50%
B 75%
C 100%
D 25%
68 Two blue flowers are crossed. One is homozygous and one is heterozygous for flower color.
If blue is the dominant allele and white is recessive, what will be the ratio of colors in the
offspring plants?
A 1 white: 3 blue
B 4 white: 0 blue
C 2 white: 2 blue
D 0 white: 4 blue
STOP