What is the goal of science?

To provide natural explanations for events.

What is a dependent variable in scientific experimentation?

The variable that changes in response to the ind. variable.

What is the main difference between passive and active transport?

Passive does not use energy and active does

How does natural selection cause a change in population?

The members are different so only some survive change.

The most common elements inmost living things are

oxygen, carbon, hydrogen,and calcium

A hawk and mouse is an example of

Predator and Prey, respectively

What is the independent variable in an experiment?

The variable that is deliberately changed.

What is the best reason for the large portion of straw-colored crickets in the first population

More straw-crickets could live in the green grass.

An aspect of the evolutionary process that is suggested by the information provided is that the

Darker moths increased when the enviroment favored them.

The DNA sequences found in two different species are 95% the same, this suggests these species-

May have similar evolutionary histories.

What is the function of Nucleic Acid's?

transfers information (hereditary or protein creation)

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Ecology + Nature of Science Review + Passive vs. Active Transport + Macromolecules + Biochemistry + Evolution Review + Basic cell organelles

157 termsStudBud Administration595 plays

Ecology Quiz by Tori Bonidie

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Questions 157

Answers

1
Which is a hypertonic solution?
None of the above
B
A
C
2
What occurs at step 7?
No decomposition
Respiration by plants
Photosynthesis
Decomposition
3
What is the goal of science?
To prove things
To find unchanging answers to questions
To provide natural explanations for events.
To get people to believe in the supernatural.
4
Why is peer review important?
Ensures the highest standards are met.
All of the above
It certifies that the work done meets scientific standards.
It ensures there is no bias in your work.
5
Enzymes can be used up
True
False
6
A group of organisms in a given area of the same species is a(n)
Biosphere
Ecosystem
Biome
Population
7
What is a dependent variable in scientific experimentation?
The variable that is deliberately changed.
The variable that gets no treatment.
The variable that changes in response to the ind. variable.
The variable that remains constant.
8
What is the main difference between passive and active transport?
Passive does use energy and active does not
Passive does not use energy and active does
Passive moves small cells and active moves large cells
Active creates its own energy
9
What are examples of Nucleic Acids?
Sugars and Starches
Oil's and Cholesterol
RNA and DNA
Enzymes and Amino Acids
10
Enzyme activity can be controlled by
temperature
concentration
pH
all of the above
11
Which of these is NOT an organelle
endoplasmic reticulum
vacuole
alveoli
mitochondria
12
This is an example of a
producer
decomposer
secondary consumer
primary consumer
13
Facilitated diffusion requires:
Carrier proteins
Carrier carbohydrates
Carrier lipids
Enzymes
14
What is the function of proteins?
long term energy source
workers of the cell
transfers information (hereditary or protein creation)
first energy source for cells
15
How does natural selection cause a change in population?
All members can survive change.
All members adapt to changes.
The members are different so only some survive change.
The members cause change then adapt to it.
16
Which fatty acid comes from a plant and is liquid at room temperature?
polyunsaturated
saturated
unsaturated
17
The enzyme in this graph works best at a pH of
6
8
9
7
18
Which of the following is NOT a limiting factor?
food
disease
nutrients
shelter
19
A herd of hyena follows a lion to snatch the lion's prey once it is killed.This relationship is
Comparitive
Mutual
Predator Prey
Competitive
20
The total amount of substances dissolved in a specific amount of solution is:
Osmolarity
Ipotonic
Hypertonic
Peroxisome
21
In the liver lab the enzyme was
hydrogen peroxide
water
oxygen
catalase
22
The diffusion of water across a selectively permeable membrane is:
Osmosis
Tonicity
Active transport
Solute
23
Which of the following is NOT found in this picture?
A producer
A primary consumer
A carnivore
An organism
24
The appearence of the purple grass was most likely the result of...
Cloning.
Asexual reproduction.
Genetic engineering.
Mutation.
25
The most common elements inmost living things are
oxygen, carbon, hydrogen,and calcium
oxygen, carbon dioxide,hydrogen, and nitrogen
oxygen, carbon, hydrogen,and nitrogen
26
ATP itself is formed through:
Secondary active transport
Molecules in exocytosis
Secondary passive transport
None of the above
27
Good scientists display a variety of attitudes that help them.They include all of these except:
Skepticism
Creativity
Spirituality
Curiosity
28
The process by which a species passes out of existence is known as...
Adaptation
Endangerment
Deforestation
Extinction
29
When a substance likes it's self this is an example of...
substrate
density
adhesion
cohesion
30
Which of the following fatty acids contain no carbon to carbon double bonds?
monounsaturated
saturated
polyunsaturated
unsaturated
31
A hawk and mouse is an example of
Parasite and Host, respectively
Host and Parasite, respectively
Predator and Prey, respectively
Prey and Predator, respectively
32
For an enzyme to function the _____must fit into the active site
product
water
enzyme
substrate
33
This organelle provides the energy for the cell
nucleus
cell wall
mitochondria
ribosome
34
What is the independent variable in an experiment?
The variable that doesn't react.
The variable that receives a variety of changes.
The variable that is not changed.
The variable that is deliberately changed.
35
What is the best reason for the large portion of straw-colored crickets in the first population
The straw-crickets had no natural predators.
More straw-crickets could live in the green grass.
The straw-crickets were larger and killed the red crickets.
Red-crickets were not part of the meadows fossil history.
36
What is the pH of water?
Neutral 7
Base 8-14
Acid 0-6
37
This is an image of a plant cell
False
True
38
Which solution is shown below?
Isotonic
Hypotonic
Hypertonic
Pintocytosis
39
An aspect of the evolutionary process that is suggested by the information provided is that the
Light colored moths will eventually increase in number.
Darker moths increased when the enviroment favored them.
Darker moths appear ed when the tree trunks got lighter.
Changing enviroments caused the darkeningof thier pigments.
40
This is an image of a(n)
Animal cell
Plant cell
41
The ultimate source of energy for the Earth and therefore for all food chains is the
Sun
Plants
None
Oxygen
42
The fact that a healthy deer can outrun a timberwolf is an example of...
Mutation.
Natural selection.
Non-random mating.
Isolation.
43
The DNA sequences found in two different species are 95% the same, this suggests these species-
Have the same number of mutations.
May have similar evolutionary histories.
Contain identicle protiens.
Are evolving into the same species.
44
A change in genetic material that produces variation in a species may be a result of ?
A mutation.
Competition.
The struggle for survival.
The overproduction of a species.
45
How does nitrogen get returned back to the atmosphere?
Animals
Nitrifying Bacteria
Nitrogen-fixing Bacteria
Denitrifying Bacteria
46
Humans use the habitat of the Ivory Billed woodpecker for development. This relationship is
Competitive
Comparitive
Predator Prey
Mutual
47
To ensure a work of science is free from bias and meets all standards, research is reviewed by
Anonymous scientific experts.
Researcher's friends.
The general public.
Law makers.
48
This organelle converts energy into forms that are usable by the cell.
vacuole
mitochondria
cell wall
nucleus
49
What is the function of Nucleic Acid's?
first energy source for cells
long term energy source
workers of the cell
transfers information (hereditary or protein creation)
50
Storage bubbles found in cells. Plant cells have one big one.
cell wall
cell membrane
mitochondria
vacuole
51
One of the factors that can affect the rate of diffusion is:
Mass of the molecules diffusing
All of the above
Temperature and Solvent density
Extent of the concentration gradient
52
Which of the following is not found in this picture?
An organism
An ecosystem
A producer
Parasitism
53
If I have something that has a pH of 2 what is it?
Acid
Base
Neutral
54
A protein which is 200 amino acids long is broken apart during hydrolysis
by removing 199 water molecules
by removing 199 water molecules
by adding 199 water molecules
by adding 201 water molecules
55
An organism that only eats producers is called
Herbivore
Omnivore
Carnivore
Primovore
56
Name two organelles that are only found in plant cells
cell wall and nucleus
cell wall and chloroplast
chloroplast and mitochondria
cell membrane and ribosome
57
Which of the following is NOT a basic need for a living organism in any habitat?
Trees
Shelter
Food
Water
58
What is tonicity?
Diffusion of water through a semipermeable membrane
It describes the amount of energy in a solution
It describes the amount of solute in a solution
Moves particles into a cell
59
What occurs at step C?
Transpiration
Rain
Precipitation
Condensation
60
What elements make up a carbohydrate?
Hydrogen, Oxygen, Carbon and Nitrogen
Hydrogen, Oxygen, Carbon, Nitrogen and Phosphorpus
Hydrogen, Oxygen and Carbon
61
This is an example of a
Secondary Consumer
Producer
Primary Consumer
Decomposer
62
Which graph most likely shows the percenteges of straw-crickets over 50 years.
B
C
A
D
63
Which cycle is shown in this picture?
Carbon Cycle
Nitrogen Cycle
Ammonia Cycle
Hydrological Cycle
64
A trait with a low survival value to the population will most likely...
Undergo a series of mutations in succeding generations.
Cause the individuals reproductive rate to increase.
Remain unchanged
Decrease in frequency in succeding generations.
65
This organelle functions to package and deliver proteins:
golgi bodies
nucleus
chloroplast
mitochondrion
66
What is the function of Carbohydrates?
workers of the cell
first energy source for cells
transfers information (hereditary or protein creation)
long term energy source
67
Plants store carbohydrates in the form of
glycogen
lipids
water
cellulose
68
The function of a protein is
Enzymes
long term energy storage
Structure and function
storage of genetic information
69
What is data?
A process you do to learn more about something.
Making observations
A field study
The information collected during investigation /observation
70
What is the function of Lipids?
long term energy source
workers of the cell
transfers information (hereditary or protein creation)
first energy source for cells
71
What elements make up a Lipid?
Hydrogen, Oxygen, Carbon, Nitrogen and Phosphorpus
Hydrogen, Oxygen and Carbon
Hydrogen, Oxygen, Carbon and Nitrogen
72
A polymer means many...
polymer
hydrocarbons
denaturation
monomer
73
A bird watcher sees an unusual bird. He notes it's color, shape and physical features. This is?
Hypothesis
Observation
Inference
Experiment
74
What kind of bond involves the sharing of an electron?
Covalent
Ionic
Hydrogen
75
Enzymes belong to which major organic molecule group?
Carbohydrate
Protein
Nucleic Acid
Lipid
76
To move substances against the concentration gradient, the cell must use:
Energy
Exocytosis
Water
Ions
77
Monomer to Polymer
dehydration synthesis
photosynthesis
hydrolysis
78
The region on Earth containing all living things is a(n)
Ecosystem
Biome
Community
Biosphere
79
What is the most basic level of ecological organization?
Organism
Biosphere
Microsphere
Population
80
What are examples of Lipids?
RNA and DNA
Sugars and Starches
Enzymes and Amino Acids
Oil's and Cholesterol
81
In biology, how do you know something is alive?
It is made up of cells.
It has a genetic code.
All of these.
It uses raw materials, energy, grows, reproduces and changes
82
Which mutation could be passed on to future generations?
A gene change in a liver cell.
Random breakage of a chromosome in a leaf cell.
A chromosomal alteration during gamete formation.
Cancer caused by excessive exposure to the sun.
83
An enzyme speeds up a chemical reaction by
maintaining activation energy
lowering activation energy
increasing activation energy
84
What are examples of Carbohydrates?
Sugars and Starches
Enzymes and Amino Acids
Oil's and Cholesterol
RNA and DNA
85
What occurs at step 5?
Photosynthesis
Respiration by animals
Decomposition
Feeding
86
What kind of bond involves the hydrogen atom being attracted to the negative part of the atom?
Covalent
Hydrogen
Ionic
87
This organelle contains DNA and controls cellular growth and reproduction
nucleus
cell wall
mitochondria
cytoplasm
88
The polymer of a carbohydrate is
amino acid
polypeptide
polysaccharide
starch
89
The biomolecule shaped like a ring contain Carbon, Hydrogen and Oxygen only is
Nucleic Acid
Protein
Carbohydrate
Lipid
90
The carbon cycle is based on what gas?
C4
CO4
CO
CO2
91
The concentration gradient of potassium promotes diffusion:
Through the cell
Out of the cell
Into the cell
Above the cell
92
Over time the spotted members of a poulation increase. An explanation for this is...
An increase in the adaptive value of the spotted trait.
A decrease in the adaptive value of the spotted trait.
An increase in population.
A decrease in the mutation rate of the spotted members.
93
What is an example of a monosaccharide?
sucrose
cellulose
glucose
94
What is shown in the following image?
Exocytosis
Receptor-mediated endocytosis
Phagocytosis
Hypertonic
95
What type of macromolecule is an enzyme?
carbohydrate
protein
lipid
nucleic acid
96
Which solutes are taken up by exocytosis?
Soluble particles
Lysotonic solutes
Those that are too big to be taken up by transport
Those that are too small to be taken up by transport
97
A biomolecule having the elements CHONP is most likely a
lipid
carbohydrate
protein
nucleic acid
98
What is the equation for photosynthesis?
C6H12O6 + 6O2 + light energy → 6CO2 + 6H2O
H2O + 3COH2O + light energy → 3H2O + 3CO
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
3H2O + 3CO + light energy → 3COH2O + H2O
99
This relationship is
Commensalism
Mutualism
Predator Prey
Parasitism
100
What is the "scientific method"?
A series of steps with a set order of use
none of these
An organized way of questioning, seeing, and answering.
A set series of steps used by scientists only
101
What is an isotope?
a version of an element with different protons
a version of an element with different electrons
a version of an element with different neutrons
102
What are examples of Proteins?
RNA and DNA
Oil's and Cholesterol
Enzymes and Amino Acids
Sugars and Starches
103
This is an example of a
decomposer
producer
primary consumer
secondary consumer
104
If I use house hold oven cleaner what is it's pH?
Neutral 7
Base 8-14
Acid 0-6
105
What is an example of a disaccharide?
glucose
sucrose
cellulose
106
Which of the following statements about scientific theories is NOT true?
It ties in many hypotheses.
It enables scientists to make accurate predictions
They are based on a large body of evidence.
It has the same meaning in daily life as in science.
107
I make translucent spots on your lunch bag.
Protein
Lipid
Nucleic Acid
Carbohydrate
108
What occurs at step E?
transpiration
infiltration
filtration
runoff
109
This is an image of a plant cell
False
True
110
What is a catalyst?
speeds up chemical reactions
fits like a lock and key
it's like an enzyme
111
What process is shown in the image below?
Pinocytosis
Phagocytosis
Endocytosis
ATP
112
What is an example of a polysaccharide?
sucrose
cellulose
glucose
113
A maple tree realeases hundreds of seeds in a single season this is an example of...
A mutation.
Isolation.
Non-random mating.
Overproduction.
114
A deer tick lives off the blood from a mouse, often weakening the mouse. This is an example of
Parasitism
Predator Prey
Mutualism
Commensalism
115
A genetic counselor would look at a families _____ to determine the risk of inherited disease.
Nucleic Acid
Lipid
Carbohydrate
Protein
116
What is peer review?
Letting as many people read your study as possible.
Reading a study, looking for spelling errors.
Sending your experiments to a publisher for review.
Publishing articles about your work so others can replicate
117
loss of a normal shape of aprotein due to heating
denaturation
polymer
hydrocarbons
monomer
118
Was this the best quiz ever? :)
no
yes
119
I am a source of quick energy!
LIpid
Nucleic Acid
Carbohydrate
Protein
120
This organelle absorb sunlight and uses it to produce food for plant cells
Nucleus
Vacuole
Chloroplast
Cell wall
121
What are the three types of osmolarity?
Hypotonic, Hypertonic, Isomertonic
Isotonic, Hypotonic, Hypertonic
Ipotonic, Hypertonic, Lysotonic
Hypertonic, Isotonic, Lysotonic
122
All organelles are contained by the
cell membrane
nuclear envelope
celluloid skin
123
Do theories become laws?
No!Theories are explanations.Laws are statements of what is.
Yes, but only after the idea is peer reviewed over 100X.
Maybe; if Bill Nye likes it enough.
Yes, but only after many years of evidence.
124
A substance formed by the chemical combination of two or moreelements is
compound
enzyme
nucleic acid
substrate
125
Miller Urey Experiment demonstrated that long complex organic molecules could form from
simple inorganic molecule
complex organic molecules
complex inorganic molecules
simple organic molecules
126
A solution is
water
a chemical reaction
a mixture of substances
two or more elements
127
What is a scientific theory?
An absolute truth.
A well tested explanation for how something works.
A best guess about something.
The same as a hypothesis
128
In an experiment, what is a CONTROL?
Controls experience the same conditions, but has no changes
Controls experience nothing that the experimental group does
Controls are the part of the experiment that changes
None of these.
129
This is an example of a(n)
Ecoregion
Community
Family
Ecosystem
130
What is the difference between inferring and hypothesizing?
An inference is a guess, a hypothesis is certain.
Inference: an interpretation. Hypothesis: an explanation.
Inference: an explanation, hypothesis: an interpretation.
An inference is controlled, a hypothesis is not.
131
What is a gradient composed of an electrical and chemical forces?
Atomic Gradient
Electrochemical Gradient
Deoxy- Bio Gradient
Bio Gradient
132
Why do we need to speed up chemical reactions in cells?
So our cells don't have to use too much energy
it is better for the cell and it makes enzymes
So our cells will use all their energy
133
When a substance likes the container it is in more than is self (Water) this is an example of
substrate
cohesion
density
adhesion
134
What elements make up a protein?
Hydrogen, Oxygen, Carbon, Nitrogen and Phosphorpus
Hydrogen, Oxygen and Carbon
Hydrogen, Oxygen, Carbon and Nitrogen
135
Which of the following statements about a controlled experiment are true?
They cannot be performed on living things.
Only one variable is tested at a time.
Everything can be studied with a controlled experiment
All the variables must be kept the same.
136
What elements make up Nucleic Acids?
Hydrogen, Oxygen and Carbon
Hydrogen, Oxygen, Carbon, Nitrogen and Phosphorpus
Hydrogen, Oxygen, Carbon and Nitrogen
137
All of these statements are part of cell theory, EXCEPT
All living things are composed of cells
New cells come from existing cells
Cells are the basic unit of structure and function
Cells are really small
138
To be useful in science, a hypothesis must:
Be measureable
Be correct
Be testable
Be observable
139
At the end of which year was the number of dark-moths closest to the number of light-moths?
5
1
2
6
140
What would you find in the nucleus of an atom?
protons
neutrons
electrons
protons and neutrons
141
The evolutionary concept that would explain the changes between the crickets and the grass is..
Natural selection.
Homeostatic balance.
Selective breeding.
Common ancestry.
142
The gradual process by which ecosystems change and develop over time is known as
Ecological Succession
Biological Chronology
Biological Succession
Ecological Chronology
143
Clear substance that holds all the contents outside of the nucleus of a cell
nucleus
cell wall
mitochondria
cytoplasm
144
What is science?
A way of observing
A way of getting & analyzing evidence re: the natural world.
A way of thinking
All of these
145
Which image is pinocytosis?
None of the above
C
B
A
146
An inference is:
A logical interpretation of an observation
A hypothesis.
A statement involving numbers
The same as an observation
147
This is a picture of a(n)
plant cell
animal cell
148
This relationship is
Commensalism
Predator Prey
Parasitism
Mutualism
149
Endocytosis is used by cells to:
Ingest bacteria and cell debris
Enclose a substance in its membrane by forming a vacuole
Prevent the cell from bursting
Retrieve elements of the plasma membrane after exocytosis
150
What kind of bond involves the transfer of an electron?
Hydrogen
Ionic
Covalent
151
This organelle encloses and supports the cells in plants
mitochondria
cell membrane
cell wall
nucleus
152
Isotonic solution is:
Less water and more solute
More water and less solute
Equal amounts of water and solvent
None of the above
153
Is eating a no carbohydrate diet good for you?
no, it eliminates the main energy source of cells.
yes, helps you loose weight so it is a healthy way to live.
154
Organelle that separates the interior of all cells from the outside environment
mitochondria
vacuole
cell membrane
nucleus
155
What does selective permeability mean?
An organic compound containing carbon
A cell membrane that allows certain substances through
An organism that can make its own food
An inorganic compound
156
In polypeptide chains the amino acids are held together by a
ionic bond
peptide bond
hydrogen bond
string
157
The ability to sink or float in an other substance
substrate
adhesion
cohesion
density

Ecology + Nature of Science Review + Passive vs. Active Transport + Macromolecules + Biochemistry + Evolution Review + Basic cell organelles Flashcards | StudBud