Polysaccharides include

starch, glycogen, and cellulose.

A biome is identified by its

average precipitation and temperature.

An organ system is a group of organs that

work together in performing all functions in an organism.

Enzymes affect the reactions in living cells by lowering the

activation energy of the reaction.

Matter can be recycled through the biosphere because

chemicals can be used again and again.

An example of a place with a microclimate is

a forested park in a desert city

Light microscopes can magnify objects

up to about 1000 times their actual size.

uniform mixture of two or more substances.

The main function of the cell wall is to

protect the cell and maintain its shape.

Water molecules are polar, with the

oxygen slightly negative and hydrogen slightly positive.

studbud

Biology 2018 Mid-Term Review

100 termsStudBud Administration785 plays

Review for chapters 1-7 Biology mid-term

Flashcards100 cardsFPractice quizPHost liveL

Questions 100

Answers

1
Carbon cycles through the biosphere in all of the following processes EXCEPT
photosynthesis
transpiration
decomposition of plants and animals
burning of fossil fuels
2
Prokaryotic cells lack
plasma membrane
cytoplasm
nucleus
genetic material
3
Which organelle breaks down macromolecules into particles the cell can use?
lysosomes
mitochondria
endoplasmic reticulum
golgi apparatus
4
If an atom contains 11 protons and 12 neutrons, its atomic number is
12
23
11
1
5
Many people value biodiversity because it
all of the above
is a natural resource.
provides medicines.
provides food and goods.
6
Polysaccharides include
glucose, glycogen, and cellulose.
starch, glycogen, and carbohydrates
starch, glucose, and cellulose.
starch, glycogen, and cellulose.
7
A snake that eats a frog that has eaten an insect that fed on a plant is a
tertiary consumer
primary producer
primary consumer
secondary consumer
8
At different latitudes the sun’s energy strikes Earth
at the same angle.
only at night.
only during part of the year.
at different angles.
9
A biome is identified by its
distance from the equator.
specific geographical location.
characteristic community of organisms
average precipitation and temperature.
10
Measurements of a plant’s growth over a two-week period represent
inferences
hypothesis
variables
data
11
The idea that “all living things are made of cells” is
a prediction.
quantitative data.
a theory.
evidence
12
Amino acid is to protein as
sugar is to fat.
simple sugar is to starch.
DNA is to RNA
fat is to lipid.
13
Which type of pyramid shows the amount of living tissue at each trophic level in an ecosystem?
a pyramid of numbers
an energy pyramid
a biomass pyramid
a food pyramid
14
As resources in a population become less available, population growth
enters a phase of exponential growth.
declines rapidly.
reaches carrying capacity.
increases rapidly.
15
A group of cells that together perform a similar function is called a(an)
organ
cell
organ system
tissue
16
Each of the following is an abiotic factor in the environment EXCEPT
temperature
plant life.
water
soil type.
17
The series of changes that occurs in a community over time is called
ecological succession.
climate change.
population growth.
competitive exclusion.
18
An organ system is a group of organs that
are made up of similar cells
work together in performing all functions in an organism.
are made up of similar tissues
work together in performing a major body function
19
Enzymes affect the reactions in living cells by lowering the
temperature of the reaction.
active site energy of the reaction.
speed of the reaction.
activation energy of the reaction.
20
A hypothesis
can be completely proven.
is a proven fact.
does not have to be tested to be correct.
may be disproved by a single experiment.
21
A substance with a pH of 6 is called
a base
both an acid and a base.
neither an acid nor a base.
an acid.
22
A squirrel and an oak tree are both examples of individual
ecosystems
organisms
cells
genes
23
Which of the following is a density-independent factor?
disease
space
food
fire
24
A substance that accelerates the rate of a chemical reaction is called a(an)
molecule
catalyst
lipid
element
25
Cholesterol is a
saturated fat
unsaturated fat
steroid
carbohydrate
26
The algae at the beginning of the food chain
consumer
decomposer
hetertroph
producer
27
Matter can be recycled through the biosphere because
matter moves in one direction through ecosystems.
matter is passed out of the body as waste.
chemicals can be used again and again.
biological systems use carbon, oxygen hydrogen, and nitrogen
28
There are 150 cacti plants per sq km in desert. What characteristic does this information show?
growth rate
age structure
geographic distribution
population density
29
Which organelle would you expect to find in plant cells but not animal cells?
smooth endoplasmic reticulum
ribosome
chloroplast
mitochondria
30
An example of a place with a microclimate is
a forested park in a desert city
coniferous trees in a temperate forest
an orchid growing in a rain forest.
a mountain range capped with ice
31
Light microscopes can magnify objects
up to about 1000 times their actual size.
up to about 10,000 times their actual size.
up to about 1,000,000 times their actual size.
up to about 100 times their actual size.
32
A condition in the environment that can restrict a population’s growth is a
limiting factor
growth factor
niche
carrying capacity
33
Which of the following contain a nucleus?
prokaryotes
organelles
eukaryotes
bacteria
34
What is the term for a group of organisms of the same species living in a particular area?
ecosystem
biosphere
population
community
35
The major cause of ozone depletion
chlorofluorocarbons
UV light
nitric acid
sulfuric acid
36
An increase in Earth’s temperature from the carbon dioxide and other gases in the atmosphere
global warming
ozone depletion
eutrophication
transpiration
37
The differences between amino acids are in the
amino groups.
hydrogen atoms.
carboxyl groups.
side groups.
38
A disease resulting in deaths of one-third of a dense population of bats would likely be a
result of exponential growth.
density-dependent factor.
nutrient-limiting factor.
density-independent factor.
39
Substance formed by the chemical combination of two or more elements
nucleus
compound
enzyme
isotope
40
A solution is a
breaking of a chemical bond.
uniform mixture of two or more substances.
combination of two or more liquids.
chemical reaction.
41
Life’s basic unit of structure and function is the
species
organism
cell
gene
42
Which biome has the least amount of precipitation?
temperate woodland
desert
tundra
rainforest
43
Which of the following is NOT a principle of the cell theory?
All cells come from existing cells.
Cells are the basic units of life.
All living things are made of cells.
Very few cells reproduce.
44
The main function of the cell wall is to
direct the activities of the cell.
help the cell move.
store DNA.
protect the cell and maintain its shape.
45
The space surrounding the nucleus of an atom contains
electrons
neutrons
protons
isotopes
46
How many bonds can carbon form with other atoms?
2
4
8
3
47
Each distinct form of life or type of organism is called a
species
cell
domain
system
48
Water molecules are polar, with the
oxygen and hydrogen sides being slightly positive.
oxygen slightly negative and hydrogen slightly positive.
oxygen and hydrogen sides being slightly negative.
oxygen slightly positive and the hydrogen slightly negative
49
Unlike the members of domains Bacteria and Archaea, the members of domain Eukarya
have nuclei
are made of cells
very small
are unicellular
50
A monosaccharide is a
carbohydrate
lipid
nucleic acid
protein
51
Which organizational level includes all of the other levels?
ecosystem
biosphere
organism
cell
52
Which means of particle transport requires input of energy from the cell?
active transport
facilitated diffusion
osmosis
diffusion
53
What is the main reason that Earth has three main climate zones?
There are differences in latitudes
Continents interfere with heat distribution.
Warm air rises at equator and cold air sinks at poles
Earth rotates and affects the major ocean currents.
54
Thin, flexible barrier around a cell.
cytoplasm
plasma membrane
cell wall
cell envelope
55
The biosphere is
the living world.
all parts of Earth inhabited by living things
the nonliving world.
animals and plants only.
56
Which of the following is a function of the nucleus?
directs the activities of the cell
stores DNA
all of the above
contains the information needed to make proteins
57
Which statement is true?
Simple sugars are made of polysaccharides
Glycerol is made of fatty acids.
Polymers are made of monomers.
Amino acids are made of proteins.
58
Identify the reactant(s) in the chemical reaction, CO₂ + H₂O -> H₂CO₃
H2CO3
CO2 and H2O
CO2
CO2, H2O, and H2CO3
59
The reaction that adds a monomer to a chain is called a
polymer reaction.
hydrolysis reaction.
dehydration reaction.
monomer reaction.
60
A model is useful if it
predicts new observations.
explains new observations.
all of the above
matches new observations.
61
Diffusion is the net movement of molecules from
an area of high concentration to low concentration.
all of the above
an area of low concentration to high concentration.
an area of equilibrium to an area of high concentration.
62
Which level of ecological study includes all of the other levels?
population
ecosystem
community
organism
63
What is the term for all parts of Earth inhabited by living things?
ecosystem
environment
biosphere
population
64
Biology is the scientific study of
the universe
life
animals
the land, water, and air on Earth.
65
A controlled experiment allows the scientist to isolate and test
several variables.
a conclusion.
a mass of information.
single variable
66
When the concentration of molecules on both sides of a membrane is the same, the molecules will
only move across the membrane to the inside of the cell.
only move across the membrane to the outside of the cell.
move across the membrane in both directions.
stop moving across the membrane
67
A logical conclusion based on observations is called a(an
generalization
inference
theory
hypothesis
68
A bird kills and eats an insect. Which ecological terms describe the bird?
herbivore, consumer
herbivore, decomposer
producer, carnivore
carnivore, consumer
69
Which of the following organic compounds is the main fuel supply for cellular work?
lipids
nucleic acids
sugars
proteins
70
What is the term for the land, water, and air on Earth and all their organisms?
population
ecosystem
biosphere
community
71
Which of the following is a function of the plasma membrane?
breaks down lipids, carbohydrates, and proteins from foods
keeps the cell wall in place
stores water, salt, proteins, and carbohydrates
regulates which materials enter and leave the cell
72
The most common elements in most living things are
oxygen, carbon, sodium, and nitrogen.
oxygen, carbon, hydrogen, and calcium.
oxygen, carbon dioxide, hydrogen, and nitrogen.
oxygen, carbon, hydrogen, and nitrogen.
73
The work of scientists generally begins with
testing a hypothesis.
carrying out experiments.
making observations and asking questions.
drawing conclusions.
74
The repeated movement of water between Earth’s surface and the atmosphere is called
water cycle
evaporation
condensation cycle
precipitation
75
What is the term for a localized group of organisms belonging to the same species?
ecosystem
community
population
biosphere
76
In 2000, the human population was about
78 billion
9 trillion
9 billion
6 billion
77
Organisms that obtain nutrients by breaking down wastes and dead organisms are called
consumers
omnivores
producers
decomposers
78
Levels of organization in a multicellular organism from simplest level to most complex
organ, cell, tissue, organ system
cell, organ, tissue, organ system
tissue, organ, organ system, cell
cell, tissue, organ, organ system
79
In science, a hypothesis is useful only if
it is proven correct.
it can be proven incorrect.
the explanation is already known
it can be tested.
80
symbiotic relationship between flower and the insect that feeds on its nectar
predation
commensalism
mutualism
parasitism
81
Which of the following makes up a molecule of water?
one atom of sodium and one atom of chlorine
one atom of hydrogen and two atoms of oxygen
two atoms of hydrogen and one atom of oxygen
one atom of hydrogen and one atom of oxygen
82
An interaction in which one organism captures and feeds on another organism is called
predation
mututalism
symbiosis
competition
83
When enough experimental data support a hypothesis, the hypothesis becomes a(an)
theory
conclusion
inference
fact
84
One of the greatest threats today to biological diversity is
old-growth forests.
nitrification
ozone depletion.
habitat destruction.
85
Which organelle releases energy from sugars and other molecules?
golgi apparatus
mitochondria
chloroplast
86
An organism’s niche is
an organism’s habitat, food and other specific factors
all the physical factors in the organism’s environment.
the range of temperatures that an organism needs to survive.
the place an organism lives.
87
Which animal would be found in the biome with cold winters, warm summers, and deciduous trees?
kangaroo
iguana
deer
polar bear
88
A theory
is a problem to be solved.
is always true
may be modified or discarded.
is the opening statement of an experiment.
89
A population is defined by its
habitat
change over time.
geographic boundaries.
dynamics
90
When hydrogen and oxygen combine and form water, water is
neither a product nor a reactant.
a product.
both a product and a reactant.
a reactant.
91
A carbohydrate made up of two sugar units is a
disaccharide
monosaccharide
polysaccharide
bisaccharide
92
The passive transport of water across a selectively permeable membrane is called
osmosis
active transport
osmotic pressure
diffusion
93
The membrane contains channels that move materials. What are these channels made of?
carbohydrates
proteins
bilipids
lipids
94
A covalent bond is formed as the result of
transferring protons.
sharing a proton pair.
transferring electrons.
sharing an electron pair.
95
What is one difference between primary and secondary succession?
Primary succession is slow and secondary succession is rapid
Secondary begins on soil and primary begins lifeless areas
Secondary begins with lichens and primary begins with trees.
Primary modifies the environment and secondary does not.
96
What is the term for each step in the transfer of energy and matter within a food web?
trophic level
food chain
energy path
energy pyramid
97
An experiment that tests the effect of a single variable is called a
theoretical experiment
controlled experiment
hypothetical experiment
variable experiment
98
Which biome is characterized by very low temperatures, high winds, and permafrost?
tiaga
temperate forest
tundra
desert
99
The three particles that make up an atom are
neutrons, isotopes, and electrons.
protons, neutrons, and isotopes.
protons, neutrons, and electrons.
positives, negatives, and electrons.
100
Which would be least likely to be affected by a density-dependent factor?
a population with a high birth rate
a small, scattered population
a population with a low death rate
a large, dense population

Biology 2018 Mid-Term Review Flashcards | StudBud