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Biology Midterm
Biology Midterm
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Biology midterm review
Flashcards
52 cards
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Practice quiz
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Host live
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Questions
52
Answers
1
T or F: Enzymes have a optimal temperature and pH that they function best in
True
False
2
T or F: Enzymes are changed during the reaction
True
False
3
Which of the following will decrease population size
Emigration
Immigration
Birth rate
Predator population decrease
4
T or F: Enzymes only work on 1 specific substrate
True
False
5
All energy in our ecosystems arise from
Primary Consumers
Plants
The Sun
Bacteria
6
Species is:
Geographical region contains ecosystems with same climate
Group of same species in area
Individual type of organism
Groups of different population in given area
7
I am going to study for my Biology Midterm!!
Yes!
No : (
8
T or F: All living organisms are made up of one or more cells
False
True
9
On the pH scale acids are indicated by what numbers?
7
7.1-14
0-6.9
10
Mutations do NOT always effect
Single-gene traits
Polygenic traits
Genotype
Phenotype
11
The tail like structure that can be found on cells that is used for locomotion is called
Cillia
Pilli
Flagella
Cell Wall
12
Biome is:
Individual type of organism
Group of same species in area
Groups of different population in given area
Geographical region contains ecosystems with same climate
13
Behavioral isolation includes
timing of mating season
different mating rituals
mountain ranges, rivers, oceans, etc.
14
Which of the following will increase population size
Emigration
Death Rate
Disease
Immigration
15
A series of events an environment goes through to regrow after a disturbance is known as
Biogeochemical cycle
Succession
Regrowth
16
Homeostasis is
stable, internal living conditions
a type of organism
constant habitat
habitual procedures
17
What is the role of the mitochondria in the cell?
Waste Removal
Lipid synthesis
Protein synthesis
Energy
18
Genetic drift mostly occurs on
Large popualtions
Small Populations
19
Enzymes are what type of molecule?
Carbohydrate
Lipids
Nucleic Acid
Proteins
20
Eukaryotic cells can be identified by their
Cell Wall
DNA
Nucleus
Ribosomes
21
T or F: Cells come only from pre-existing cells
True
False
22
Farmer Joe only breeds the largest hogs. This is an example of:
Natural Selection
Artificial Selection
Survival of the fittest
Fitness
23
T or F: Atoms are the basic unit of structure and function in a living organism
True
False
24
Which two processes add to the carbon cycle negatively
Deforestation and Burning of fossil fuels
Burning of fossil fuels and Photosynthesis
Burning of fossil fuels and Cellular Respiration
Deforestation and Photosynthesis
25
Community is:
Individual type of organism
Group of same species in area
Geographical region contains ecosystems with same climate
Groups of different population in given area
26
What organism plays an essential role in the nitrogen cycle?
Bacteria
Primary Consumers
Bugs
Producers
27
Natural Selection acts on ________ which in turn may result in the evolution of _____ over time
Populations, individuals
Individuals, populations
Individuals, families
Species, species
28
Which of the following is an example of an abiotic factor?
Temperature
Bacteria population
Predator/Prey relationships
Reproduction patterns
29
Which of the following BEST explains why enzymes are necessary for many cellular reactions?
Reactions take up too much space in cells without enzymes
Reactions are too slow for the needs of cells without them
They supply the O2 needed for reactions
They change reactants form solid to liquid during reactions
30
What are two main processes that contribute to the oxygen and carbon cycles?
Cellular respiration and Fermentation
Photosynthesis and Fermentation
Photosynthesis and Burning of Fossil Fuels
Cellular respiration and Photosynthesis
31
What is carrying capacity?
How much a keystone species can carry
The number of different species an ecosystem can support
The maximum number of individuals an ecosystem can support
The minimum number of individuals an ecosystem can support
32
What type of cell has no membrane bound organelles and no nucleus?
Prokaryotic Cells
Eukaryotic Cells
33
What kind of molecules are cell membranes made of?
Nucleic acids, lipids, cholesterol
Phospholipids, carbohydrates, Enzymes
Phospholipids, cholesterol, carbohydrates, & Proteins
34
What is genetic drift?
A new population forms that may have a limited gene pool
A new population forms that have a larger gene pool
2 new populations form
35
Enzymes function as
Food
Energy producers
Catalysts
DNA
36
What percent of energy is available to each succeeding trophic level?
1%
90%
50%
10%
37
Secondary succession starts
with soil - after a natural disaster
with rock - where there was once no plant life
38
The situation in which allele frequencies remain constant is called?
Genetic Drift
Evolution
Natural Selection
Genetic Equilibrium
39
What kind of ending do enzymes usually have?
ISE
ESE
ASE
OSE
40
The smallest unit of life is
Atom
Organelle
Organ
Cell
41
Enzymes work by
Raising activation energy
Pushing the reaction
Breaking things
Lowering activation energy
42
_______ are the hair like structures found all over a cell
Cell Wall
Cilia
Flagella
Pilli
43
Acids have more
H+ ions
OH- ions
44
What does Semi-Permeable mean? (Cell Membrane)
Some materials can pass and others cannot
Everything can pass
Nothing can pass
45
Geographic isolation includes
mountain ranges, rivers, oceans, etc.
timing of mating season
different mating rituals
46
T or F: Enzymes can be used over and over
False
True
47
All living things in an area are known as
Abiotic
Biotic
48
Temporal isolation includes
different mating rituals
timing of mating season
mountain ranges, rivers, oceans, etc.
49
All cells have
A cell membrane, cytoplasm, and DNA
A cell membrane, a cell wall, ribosomes & cytoplasm
A cell membrane, mitochondria, and cytoplasm
A cell membrane, a cell wall, and DNA
50
Population is:
Individual type of organism
Geographical region contains ecosystems with same climate
Group of same species in area
Groups of different population in given area
51
The variation and frequency of organisms within a given area is the definition of:
Alterations of habit
Biodiversity
Biotic
Ecology
52
In genetic drift, allele frequencies change due to
Chance
Natural Selection
Genetic Equilibrium
Mutation
