Nucleic acids are composed of what elements?

Carbon, hydrogen, oxygen, nitrogen, and phosphorus

Which of the following is NOT a step in the light reactions?

ATP and NADPH are used to produce high energy sugars

Which of the following is NOT the proper use of science?

To use data to support a particular point of view

The amount of light and temperature are examples of

Factors to which living things respond

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Masters Exam Practice (Pt. 1)

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Surface knowledge of all biology needed for the biology graduate entrance exam at Southeastern.

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Questions 95

Answers

1
What is the process by which bacteria convert nitrogen gas in the air to ammonia?
Nitrogen fixation
Decomposition
Denitrification
Chemosynthesis
2
What carbohydrate do Rhodophyta use as energy storage?
Lactose
Starch
Cellulose
Maltose
3
Green plants are
Omnivores
Herbivores
Consumers
Producers
4
Proteins are made up of smaller molecules called
Monomers
Monomers and Amino acids
Nucleotides
Amino acids
5
All the interconnected feeding relationships in a ecosystem make up
Food chain
Food web
Food network
Biosphere
6
Which of the following structures is found in the cytoplasm?
Nucleus
Chromatin
Cell wall
Ribosome
7
Who was one of the first people to identify and see cells?
Matthias Schleiden
Robert Hook
Rudolf Virchow
Anton von Leeuwenhoek
8
What theory was disproved by Redi’s experiment with jars and gauze?
Metabolism
Chemosythesis
Evolution
Spontaneous generation
9
In an experiment, scientists use the result to
Refute a hypothesis
Support a hypothesis
Support/refute a hypothesis
Prove a hypothesis
10
The simplest grouping of more than one kind of organism in the biosphere is
Population
Ecosystem
Species
Community
11
What are the reactants in the equation for cellular respiration?
Carbon dioxide and water
Water and glucose
Glucose and oxygen
Oxygen and lactic acid
12
Which of the following is released during cellular respiration?
Air
Oxygen
Lactic acid
Energy
13
A controlled experiment allows the scientist to isolate and test
Several veriables
A mass of information
A conclusion
A single variable
14
Nucleic acids are composed of what elements?
Carbon and hydrogen
Carbon, hydrogen, oxygen, and nitrogen
Carbon, hydrogen, oxygen, nitrogen, and phosphorus
Carbon, hydrogen, and oxygen
15
Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called
Producers
Decomposers
Omnivores
Autotrophs
16
Energy is release from ATP when
ATP is exposed to sunlight
A phosphate group is added
Adenine bonds to a 5-carbon sugar
A phosphate group is removed
17
Which of the following contain a nucleus?
Eukaryotes
Organelles
Bacteria
Prokaryotes
18
Which of the following organic compounds is the main source of energy for all living things?
Carbohydrates
Lipids
Proteins
Nucleic acids
19
The diffusion of water across a selectively permeable membrane is called
Osmosis
Facilitated diffusion
Active transport
Osmotic pressure
20
The type of data that is numerical is called
Quantitive
Quantitative
Qualitative
Qualitive
21
Which of the following is a function of the cytoskeleton?
Helps a cell keep its shape
Helps the cell move
Contains DNA
Directs the activities of the cell
22
The ability to reproduce results is an important part of any
Law
Hypothesis
Theory
Experiment
23
Which means of particle transport requires input of energy from the cell?
Diffusion
Facilitated diffusion
Active transport
Osmosis
24
Plants gather the sun’s energy with light absorbing molecules called
Pigments
Thylakoids
Chloroplasts
Glucose
25
What is the combined portion of Earth called in which all living things exist?
Biosphere
Community
Biome
Ecosystem
26
Which of the following structures serves as the cell’s boundary from its environment?
Mitochondrion
Chloroplast
Cell membrane
Channel proteins
27
Cellular respiration releases energy by breaking down
Carbon dioxide
Water
ATP
Food molecules
28
The cell membrane contains channels and pumps. What are they made of?
Bilipids
Proteins
Lipids
Carbohydrates
29
A granum is
Photosynthetic pigment molecule
A stack of thylakoids
A stack of chloroplasts
Membrane enclosing thylakoids
30
What animals eat both producers and consumers?
Chemotrophs
Autotrophs
Omnivores
Herbivores
31
Which of the following is NOT a step in the light reactions?
Pigments absorb light
ATP and NADPH are used to produce high energy sugars
High-energy electrons move through the chloroplast
ATP is produced
32
A student is collecting the gasoff from a plant in bright sunlight at 27°C. The gas being collected is probably
Carbon dioxide
Vaporized water
Oxygen
ATP
33
An animal cell that is surrounded by freshwater will burst because the osmotic pressure causes
Water to move out of the cell
Solutes to move into the cell
Solutes to move out of the cell
Water to move into the cell
34
How do Phaeophyta store carbohydrates?
Cellulose
Maltose
Mannitol
Lammarin
35
Which of the following is NOT the proper use of science?
To explain events in the natural world
To investigate and understand the natural world
To use derived explanations and make useful predictions
To use data to support a particular point of view
36
A snake that eats a frog, that has eaten an insect, that fed on a plant is a
Second-level producer
First-level consumer
First-level produced
Third-level consumer
37
Which of the following is FALSE?
Thylakoids contain chlorophyll
Thylakoids contain stroma
Chloroplasts contains stroma
Granum contain several thylakoids
38
Which organelle would you expect to find in plant cells but not in animals cells?
Smooth ER
Mitochondrion
Ribosome
Chloroplast
39
A well-tested explanation that unifies a broad range of observations
Hypothesis
Theory
Controlled experiment
Inference
40
A theory
Is always true
Is a problem to be solved
May be revised or replaced
Is the opening statement of an experiment
41
Scientists publish the details of important experiment so that
Their experimental procedures can be reviewed
Others can try to reproduce the results
Their work can be repeated
All of the above
42
What is an example of the body maintaining homeostasis?
Shivering
Blinking
Coughing
Chewing food
43
The first trophic level of any food chain will always be
Heterotroph
Consumer
Herbivore
Autotroph
44
The Calvin Cycle is another name for
All of the above
Photosynthesis
Light independent reactions
Light dependent reactions
45
The amount of light and temperature are examples of
Factors that affect reprodution
Methods of energy production
A factors necessary for life
Factors to which living things respond
46
All of the following are types of active transport that involves bringing material into the cell EXCEPT
Exocytosis
Endocytosis
Phagocytosis
Pinocytosis
47
The main function of the cell wall is to
Direct the activities of the cell
Support and protect the cell
Helps the cell move
Store DNA
48
Which of the following is NOT a part of an ATP molecule?
Adenine
Phosphate
Chlorophyll
5-carbon sugar
49
Information gathered from observing a plant that grows 3cm over a two-week period results in
Data
Variables
Inferences
Hypotheses
50
Which of the following is NOT a way that scientist generate hypotheses?
Using prior knowledge
Making uninformed guesses
Using logical inference
Using information and creative imagination
51
What kingdom does algae belong to?
Protista
Bacteria
Plantae
Animalia
52
Which of these is a product of cellular respiration?
Oxygen
Glucose
All of the above
Water
53
Which of the following organisms does NOT require sunlight to live?
Trees
Photosynthetic bacteria
Chemosythetic bacteria
Algae
54
Diffusion is the movement of molecules from
All of the above
An area of high concentration to an area of low concentration
An area of law concentration to an area of high concentration
An area of equilibrium to an area of high concentration
55
Which of the following is NOT an example of a heterotroph?
Grass
Mushroom
Leopard
Human
56
How does the Calvin Cycle differ from the light reactions?
TaLes place in the thylakoids
Takes place in the stroma
Requires light
Takes place in the chloroplast
57
The work of scientist begins with
Asking a question
Drawing conclusions
Testing a hypothesis
Creating experiments
58
What are the products of the light reactions?
Oxygen gas
All of the above
NADPH
ATP
59
The repeated movement of water between Earth’s surface and the atmosphere is called
Evaporation
Precipitation
The water cycle
The condensation cycle
60
Hypotheses may arise from
Imaginative guesses
Logical inferences
Prior knowledge
All of the above
61
Which sequence correctly traces the path of protein in the cell?
Ribosome, smooth ER, chloroplast
Rough ER, Golgi apparatus, released from the cell
Mitochondrion, Rough ER, cell membrane
Smooth ER, lysosome, Golgi apparatus
62
Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
Mitochondrion
Nucleus
Chloroplast
Endoplasmic reticulum
63
Which structure make proteins using coded instructions that come from the nucleus?
Vaculoe
Ribosome
Mitochondrion
Golgi apparatus
64
The stroma is the region outside the
Thylakoids
Plant cells
All of the above
Chloroplasts
65
The second trophic level of any food chain will always be
Producer
Autotroph
Consumer
Herbivore
66
Which of the following is NOT a true statement about ATP?
Used ATP is discarded by the cells as waste
ATP consists of a 5-carbon sugar, adenine, and a phosphate
ATP provides energy for the mechanical functions of cells
ADP forms when ATP releases energy
67
Organisms, such as plants, that make their own food are called
Pigments
Autotrophs
Heterotrophs
Thylakoids
68
Biology is the study of
The land, water, and air on earth
Plants and animals
The environment
Living things
69
Of the 90% of energy not passed on when consumed, some is used for the organism’s life processes and the rest is
Stored as lipids
Used in reproduction
Stored as body tissue
Eliminated as heat
70
Scientific hypotheses must be proposed in a way that
Enables them to be tested
Doesn’t contradict previous hypothses
Ensures that an experiment will be valid
Enables them to be proved valid
71
The cell theory applies to
Multicellular organisms
Plants and animals
Bacteria
All of the above
72
Proteins are composed of what elements?
Carbon, hydrogen, oxygen, and nitrogen
Carbon and hydrogen
Carbon, hydrogen, oxygen, nitrogen, and phosphorus
Carbon, hydrogen, and oxygen
73
Where in the chloroplasts is chlorophyll found?
In glucose
In the thylakoids
In the stroma
In the ATP
74
The movements of energy and nutrients through living system are different because
Energy forms chemical compounds and nutrients are lost as heat
Nutrients flow in one direction and energy recycles
Energy flows in one direction and nutrients recycle
Energy is limited in the biosphere and nutrients are always available
75
What type of organic compound would likely be found in the membrane of our cells?
Nucleic acids
Proteins
Lipids
Carbohydrates
76
An organism that feeds only on plants is called
Detritivore
Carnivore
Herbivore
Omnivore
77
Carbon cycles through the biosphere is all the following processes EXCEPT
Photosynthesis
Decomposition
Respiration
Transpiration
78
Which of these processes takes place in the cytoplasm of a cell?
Krebs cycle
Glycolysis
Electron transport
All of the above
79
Which of the following is a function of the cell membrane?
Regulates which materials enter and leave the cell
Keeps the cell wall in place
Stores water, salt, proteins, and carbohydrates
Breaks down lipids, carbohydrates, and proteins from food
80
Which of the following affects the rate of photosynthesis?
Temperature
All of the above
Water
Light intensity
81
Most plants appear green because chlorophyll
Reflects violet light
None of the above
Doesn’t absorb green light
Absorbs green light
82
Which organelles helps provide cells with energy?
Rough ER
Golgi apparatus
Smooth ER
Chloroplast
83
An organism that uses energy to produce its own food supply from inorganic compounds is called
Heterotroph
Detritivore
Comsumer
Autotroph
84
What is a product of the Calvin Cycle?
High-energy sugars
Carbon dioxide gas
Oxygen gas
ATP
85
Which of the following is NOT a characteristic of all living things?
Growth and development
Response to the environment
Ability to reproduce
Ability to move
86
Which of the following is the correct sequence of events in cellular respiration?
Glycolysis, Krebs cycle, electron transport
Krebs cycle, glycolysis, electron transport
Krebs cycle, electron transport, glycolysis
Glycolysis, fermentation, Krebs cycle
87
Which of the following is a function of the nucleus?
Contain the information needed to make proteins
All of the above
Sythesize proteins
Provide energy from food molecules
88
An organism that CANNOT make its own food is called
Chemotroph
Autotroph
Producer
Heterotroph
89
Which pathway represents the flow of electrons during photosynthesis?
O2, ADP, Calvin cycle
H2O, NADPH, Calvin cycle
Photosystem I, Calvin cycle, NADPH
H2O, Photosystem I, Photosystem II
90
Where do the light reactions take place?
Chlorophyll molecules
Mitochindrion
Stroma
Within thylakoid membranes
91
If CO2 is removed from a plants environment, what would you expect to happen to the plants high-energy sugar production?
More sugars will be produced
CO2 doesn’t affect the production of high-energy sugars
Same number of sugars will be produced but without CO2
No sugars will be produced
92
The algae at the beginning of the food chain are
Producers
Consumers
Heterotrophs
Decomposers
93
The process by which organisms keep their internal conditions fairly constant is called
Evolution
Photosynthesis
Homeostasis
Metabolism
94
What is the process by which bacteria convert nitrates (NO3) and nitrites (NO2) back to nitrogen gas?
Denitrification
Decomposition
Nitrogen fixation
Chemosynthesis
95
All the members of a particular species that live in the same area are called
Population
Ecosystem
Community
Biome

Masters Exam Practice (Pt. 1) Flashcards | StudBud