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Biology > Ecology, Biochem, and Bio Characteristics 2014 > Flashcards

Ecology, Biochem, and Bio Characteristics 2014 Flashcards

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1
Q

Atmospheric Nitrogen (N2)

A

can not be used by living organisms

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2
Q

The paths of water, carbon, nitrogen, and phosphorus pass from the non-living environment to living organisms and back to the non-living environment in closed circles called

A

biogeochemical cycles

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3
Q

A planned procedure to test a hypothesis is called a(n)

A

experiment

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4
Q

ATP

A

provides energy for the cell

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5
Q

Parasite

A

organisms that feed off of host animals that are hurt in the process

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6
Q

When two or more species compete for a limited resource, the less successful species

A

must alter its realized niche

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7
Q

Nitrogen and phosphorus are important to life because they are the building blocks of…

A

proteins

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8
Q

Carbohydrates are composed of (monomers)

A

monosaccharides

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9
Q

Humans are affecting the carbon cycle by

A

all of the above

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10
Q

A scientist noticed that the number of salamanders in ponds in the Rocky Mountains were declining. This was a(n)________

A

observation

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11
Q

All of the following are biotic interactions of organisms, except

A

changes in weather

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12
Q

A pH of 5 is considered a(n)___ solution

A

Acidic

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13
Q

Lipids are insoluble in water because they are _______

A

non-polar molecules

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14
Q

An ecosystem consists of

A

all of the above

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15
Q

PICTURE- In the food web above, which trophic level is the hawk?

A

secondary and tertiary consumer

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16
Q

A hypothesis is a…

A

testable possible explanation of an observation

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17
Q

Carbohydrates(cellulose;glycogen,starch), proteins, and nucleic acids ___

A

are all polymers

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18
Q

Precipitation and evaporation are important components of the

A

water cycle

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19
Q

PICTURE- Which of the following statements best describes the graph above?

A

This graph shows exponential population growth

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20
Q

A biologist conducts an experiment designed to determine whether a particular type of molecule is transported into cells by diffusion, facilitated diffusion or a molecular pump. She collects the following information: 1.The molecule is very small. 2.The molecule is polar. 3.The molecule can accumulate inside a cell, even when its concentration inside is initially higher than outside the cell. 4.Cells use up more energy when the molecule is present in the environment around the cell than when it is not present. The biologist should conclude that the form of transport is most likely

A

molecular pump

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21
Q

All of the following are abiotic factors of a habitat except

A

plants

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22
Q

Control molecules, like enzymes, are examples of

A

proteins

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23
Q

Carbon dioxide is sometimes called a greenhouse gas because…

A

it traps heat in the atmosphere like the glass of a greenhouse

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24
Q

A planned procedure to test a hypothesis is called a(n)

A

experiment

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25
Liquid water expands when it freezes into a solid and becomes more dense
false
26
Organic compounds all have what element in common?
carbon
27
Most of the lodge pole pines in Summit County have been killed by pine beetles. This is an example of...
A natural process and succession of a forest
28
Wildlife biologist Ranger Bubba Colvin has been observing and collecting data on elk in Rocky Mountain National Park. The graph below, represents 24 yrs. of data collection. In what year was the elk population 200,000?
1991
29
Amino acids link up to form
proteins
30
All organisms are members of only one trophic level
false
31
A single water molecule is held together by ______bonds
covalent
32
A quick source of energy for cells (Iiving organisms) comes from
carbohydrates
33
In terms of the health of Earth's ecosystem, which meal would have the smallest impact on the environment?
vegetable and stir fry and rice
34
A scientific theory...
a set of related hypothesis that have been tested & confirmed many times
35
Large chain-like macromolecules composed of smaller sub-unit linked together are called
polymers
36
Atmospheric Nitrogen (N2) cannot be used by organisms in this form. To be used by organisms it has to be...
fixed by bacteria
37
The cell theory states that
all of the above
38
Problem/>: Will constant light make sunflower seeds sprout faster? Hypothesis: Constant light will make sunflower seeds grow faster because…... Procedure: Dish #1: 10 ml water, 10 seeds, constant light, 25 degrees Celsius Dish #2: 10 ml water, 10 seeds, variable light, 25 degrees What is the control group?
dish #2
39
Factors that can inhibit population growth include all of the following except
out competing other species for food and space
40
Which of the following is common to the carbon cycle, the nitrogen cycle, and the water cycle?
The substance is required by all living things and in involved in many processes that occur in all living things
41
Humans are composed of approximately ___ water
70%
42
Biology is the study of
life
43
Biology: _?_ :: geography: land
Life
44
An example of a nucleic acid
DNA
45
Lactic acid is created during
Anaerobic respiration in animals
46
A cell will swell when placed in a(n)
hypotonic solution
47
Capillary Action
the ability of water molecules to cling on to the surface of certain materials and pull each other against the force of gravity (allows trees and other organisms to obtain water)
48
How can you determine if a stream or river has good water clarity?
There are a diversity of macroinvertebrates, including stone flies
49
Energy needed for metabolism comes from
all of the above
50
A scientific theory:
a set of related hypothesis that have been tested & confirmed many times
51
In DNA replication, the enzyme responsible for adding free nucleotides to the exposed DNA parent strands is
DNA polymerase
52
Lipids are ________ molecules
non-polar
53
Because water molecules are cohesive, water has _____ surface tension
high
54
Ecology is the study of the interaction of living organisms
with each other and their physical environment
55
If DDT, a persistent chemical, got into this ecosystem, which organism would have the greatest concentration of DDT in it?
Hawk
56
What is the 10% rule?
10% of energy is transferred from one trophic level to the next
57
A group of genetically similar organisms that can produce fertile offspring is called a........
species
58
The type of relationship where one species benefits and the other is neither helped nor harmed
commonsalism
59
The process by which organisms make more of their own kind is called _________
reproduction
60
A group of organisms of different species living together in a particular place is called a
community
61
Composed of 3 fatty acids attached to a glycerol molecule:
Triglyceride
62
Homeostasis means...
keeping things the same
63
In the water cycle, water molecules go into the atmosphere from biotic sources by the process of...
transpiration
64
PICTURE- Which organism in the food web above will have the greatest numbers and greatest amount of energy?
Phytoplankton
65
Glucose is an example of a
monosaccaride
66
Precipitation and evaporation are important components of the
water cycle
67
A molecule that has a partial positive charge on one side and a partial negative charge on the other side is called a
polar molecule
68
Polar molecules, like water, behave like 'molecular magnets'
True
69
Microbiology is the study of ____________
study of small things
70
All of the following are examples of biomagnification, except...
Higher concentrations of DDT in corn plants sprayed with the insecticide than the chickens that eat the corn
71
Lipids are non-polar molecules.
True
72
What type happens to a forest ecosystem that is impacted by wildfire?
Secondary succession rebuilds the ecosystem from the forest floor up
73
________ flows through an ecosystem and __________ cycles within an ecosystem
Energy; Matter
74
An ecosystem consists of
all of the above
75
Most of the lodge pole pines in Summit County have been killed by pine beetles. This is an example of...
A natural process and succession of a forest
76
Which of the following is common to the carbon cycle, the nitrogen cycle, and the water cycle?
The substance is required by all living things and is involved in many processes that occur in all living things.
77
An autotroph is able to make organic compounds (food) from light and inorganic substances
True
78
During a chemical reaction, a substance upon which an enzyme acts is called ______
substrate
79
Lipids are composed of
Fatty acids + glycerol
80
The ____________ group does not recieve any change and is used to compare the experimental group to
control
81
Control molecules, like enzymes, are examples of
proteins
82
Nitrogen and phosphorus are important to life because they are the building blocks of
proteins
83
PICTURE- In the food web above, the phytoplankton are located in which trophic level?
Primary producer

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