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Unit 1 Basics of Biology Part 1 Flashcards | StudBud
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Unit 1 Basics of Biology Part 1
Unit 1 Basics of Biology Part 1
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1
What term describes a molecule made of 2 H atoms and 1 O atom?
HO2
H3O
H2O
O2H
2
The relationship between independent and dependent variables can be described as?
Parallel
Competitive
Cause and effect
Unrelated
3
Which molecule is the main structural component of plant cell walls?
Protein
Cellulose
Starch
Chitin
4
Which doesn't describe an enzyme's function?
Speed up reactions
Store genetic info
Build molecules
Bind to substrates
5
Which isn't a function of proteins?
Control the rate of reactions
Store and transmit heredity
Form bones and tissues
Fight diseases
6
In DNA, Adenine pairs with?
Guanine
Thymine
Cytosine
Uracil
7
In a hypothesis, "If IV" refers to?
Constant variable
Experimental variable
Independent variable
Dependent variable
8
Which is a liquid lipid at room temperature?
Steroid
Saturated fat
Unsaturated fat
Wax
9
Organic molecules must contain?
Nitrogen
Oxygen
Carbon
Hydrogen
10
Which term refers to a single sugar molecule?
Trisaccharide
Disaccharide
Polysaccharide
Monosaccharide
11
The "cause" in an experiment is the?
Constant
Dependent variable
Control variable
Independent variable
12
Which graph shows trends over time?
Line graph
Scatter plot
Bar graph
Pie chart
13
Which is NOT a step in the scientific method?
Draw conclusions
Make a prediction
Make a hypothesis
Analyze data
14
Which bond connects amino acids?
Hydrogen
Covalent
Peptide
Ionic
15
An atom's nucleus contains?
Neutrons
Electrons
Both B and C
Protons
16
Qualitative observations describe?
Measurements
Number counts
Equations
Quality characteristics
17
Which describes the main function of nucleic acids?
Structural support
Store genetic information
Energy storage
Transport
18
In a hypothesis, "then DV" refers to?
Direct variable
Dependent variable
Data variable
Independent variable
19
What causes high surface tension in water?
Evaporation
Heat
Adhesion
Cohesion
20
What's the difference between RNA and DNA?
Sugar type
They are the same
Both A and B
Base pairs
21
What is the purpose of a control group in an experiment?
To ensure results
To have more groups
For comparison
To test the independent variable
22
Organic molecules always contain?
Oxygen
Hydrogen
Nitrogen
Carbon
23
What is NOT a property of water?
Adhesion
Cohesion
Flammability
High specific heat
24
How are most macromolecules formed?
By adding light
By heating
By dehydrating
By cooling
25
The primary energy molecule in the body is?
ATP
DNA
Glucose
Amino acid
26
Which is NOT an element essential for life?
Hydrogen
Nitrogen
Helium
Carbon
27
Which isn't an organic molecule?
Carbohydrate
Lipid
Protein
Water
28
Which is NOT a lipid function?
Make up cell membranes
Insulate and protect
Provide energy
Store genetic info
29
Amino acids are the building blocks of?
DNA
Lipids
Proteins
Carbohydrates
30
Which isn't a function of nucleic acids?
Make proteins
Store genetic info
Control reactions
Transmit hereditary info
31
Which of these terms is NOT related to water's properties?
Ionic
Polar
Cohesion
Adhesion
32
In which state is water least dense?
Gas
Liquid
Solid
Plasma
33
Which term refers to the "normal group" in an experiment?
Constants
Experimental group
Dependent group
Control group
34
What process converts glucose into ATP with oxygen?
Osmosis
Photosynthesis
Digestion
Cellular respiration
35
How many calories/milligram does a lipid provide?
9
6
4
2
36
How does an enzyme speed up a reaction?
Increases energy
Reduces activation energy
Adds heat
Provides reactants
37
What is NOT true about enzymes?
Store energy
Control cell functions
Speed up reactions
Aid in digestion
38
An organic molecule must contain which element?
Hydrogen
Carbon
Nitrogen
Oxygen
39
A molecule that's "water fearing" is?
Hydrophobic
Amphipathic
Neutral
Hydrophilic
40
Which graph is best for comparing categories?
Scatter plot
Pie chart
Line graph
Bar graph
41
How many different amino acids are in proteins?
20
100
25
5
42
DNA and RNA are examples of?
Nucleic Acids
Lipids
Carbohydrates
Proteins
43
The atomic structure consists of all EXCEPT?
Ions
Protons
Electrons
Neutrons
44
What's the difference between RNA and DNA?
Acids and bases
Amino acids and nucleotides
Nitrogen bases and carbon sugars
Ribose sugar and Deoxyribose sugar
45
In a solution, the substance dissolved is?
Solvent
Solution
Medium
Solute
46
A covalent bond involves?
Exchanging protons
Removing electrons
Sharing electrons
Transferring electrons
47
Which is NOT a type of lipid?
Phospholipid
Fatty acid
Steroid
Ribosome
48
In a controlled experiment, what stays the same?
Control group
Constants
Dependent variable
Independent variable
49
Polypeptides are made up of?
Monosaccharides
Fatty acids
Nucleotides
Amino acids
50
Which molecule delivers genetic instructions?
Protein
Lipid
ATP
RNA
51
A testable prediction based on observation is?
Law
Fact
Hypothesis
Theory
52
What forms when one atom donates an electron to another?
Metallic bond
Hydrogen bond
Ionic bond
Covalent bond
53
A molecule with equal charge distribution is?
Nonpolar
Metallic
Polar
Ionic
54
A macromolecule that regulates body functions is?
Nucleic Acid
Lipid
Carbohydrate
Protein
55
What is the role of DNA in cells?
Catalyze reactions
Provide structure
Store genetic information
Produce energy
56
Enzymes in the body function as?
Catalysts
Products
Reactants
Hormones
57
Which molecule is nonpolar and doesn't dissolve in water?
Water
Glucose
Salt
Lipids
58
Which macromolecule stores genetic info?
Carbohydrates
Nucleic Acids
Lipids
Proteins
59
What type of molecules have unequal charge distribution?
Nonpolar
Polar
Neutral
Ionic
60
The bond type between water molecules is?
Metallic
Hydrogen
Ionic
Covalent
61
What is NOT a protein function?
Transmitting genetic info
Transporting substances
Speeding up reactions
Forming bones and tissues
62
Which is NOT an element essential for life?
Carbon
Nitrogen
Oxygen
Argon
63
The bond formed due to opposite charges is?
Metallic
Covalent
Hydrogen
Ionic
64
A solution's component that gets dissolved is?
Solute
Mixture
Solution
Solvent
65
Which graph is best for comparing categories?
Scatter plot
Line graph
Bar graph
Pie chart
66
Which isn't a property of water?
Adhesion
Cohesion
High specific heat
Nonpolarity
67
What is the purpose of a control in an experiment?
To validate the results
To provide a comparison
To ensure success
To test the hypothesis
68
What does DNA stand for?
Di-Nucleic Acid
Dynamic Nutrient Acid
Deoxyribonucleic Acid
Dynamic Nucleotide Acid
69
What best describes observations?
Educated guesses
Assumptions
Facts and descriptions
Predictions
70
A bond between a hydrogen atom and an oxygen atom is?
Polar
Ionic
Covalent
Hydrogen
71
Which isn't a main function of lipids?
Speeding up reactions
Energy storage
Insulation
Cushioning organs
72
What molecule serves as universal energy?
Lipid
DNA
ATP
Glucose
73
Which molecule has genetic instructions?
ATP
Enzyme
RNA
Lipid
74
Which substance has the highest energy per gram?
Nucleic acids
Proteins
Lipids
Carbohydrates
75
The backbone found in all lipids is?
Amino acid
Fatty acid
Nucleotide
Glycerol
76
What type of macromolecule are enzymes?
Proteins
Nucleic Acids
Carbohydrates
Lipids
77
Primary structure of protein is determined by?
Disulfide bonds
Peptide bonds
Hydrogen bonds
Ionic bonds
78
Which is NOT a carbohydrate function?
Insulation
Storage
Structure
Short-term energy
79
Which molecule has a polar nature?
Water
Oxygen
Nitrogen
Carbon Dioxide
80
Why is water's specific heat high?
It forms hydrogen bonds
It's small
It evaporates quickly
It's nonpolar
81
What is the smallest part of an element retaining its properties?
Molecule
Cell
Electron
Atom
82
Which macromolecule is used for long-term energy storage?
Protein
Lipids
Nucleic Acid
Carbohydrates
83
Which isn't a polymer?
Amino acid
Cellulose
DNA
Starch
84
The most basic unit of life is?
Cell
Molecule
Atom
Organ
85
Which molecule is the main source of energy for organisms?
ATP
DNA
RNA
Protein
86
The "control" in an experiment is for?
Manipulation
Testing
Variation
Comparison
87
In which molecule is genetic info stored?
DNA
RNA
ADP
ATP
88
The "effect" in an experiment refers to the?
Dependent variable
Independent variable
Control variable
Constant variable
89
Which isn't a nucleic acid function?
Store genetic info
Build proteins
Store energy
Transmit genetic info
90
What is NOT a type of macromolecule?
Protein
Glucose
Nucleic Acid
Lipid
91
Qualitative observations do NOT include?
Numbers
Textures
Colors
Temperatures
92
Lipids are soluble in?
Ethanol
Water
Acid
Oil
93
An educated guess in an experiment is?
Hypothesis
Conclusion
Theory
Observation
94
What molecule stores genetic information?
RNA
ATP
DNA
Protein
95
Which element is NOT essential for life?
Oxygen
Carbon
Neon
Hydrogen
96
An educated guess based on observations is?
Law
Theory
Question
Hypothesis
97
Which is NOT a characteristic of life?
Homeostasis
Movement
Growth
Non-cellular nature
98
What term describes a water-loving molecule?
Hydrophobic
Hydronated
Hydrophilic
Hydrogenous
99
Which term is a type of lipid found in cell membranes?
Steroid
Polysaccharide
Enzyme
Phospholipid
100
Which is a monosaccharide used for energy in our bodies?
Cellulose
Starch
Glycogen
Glucose
