How do we define an isotope?

An element with different # of neutrons but same # of protons

Which statement best describes the following image?

Hydrolysis, catabolic reaction, exergonic reaction

In a hypotonic solution

Solute concentration in solution is less than solute conc in the cell

What is the correct order of the scientific method?

Observation - question - hypothesis - prediction - experiment

What would be our dependent variable in that same experiment?

The amount of time each cookie brand floated for

Which of the following is a part of the cell theory?

Cells are fundamental units of structure, function, & organization of life

How do we define the scientific method?

A series of steps used to answer questions

Which components are found in all cells (prokaryotes & eukaryotes)?

DNA, cytoplasm, ribosome, plasma membrane

Ionic bonds are formed when...

Oppositely charged ions attract one another

The 2nd law of thermodynamics states that:

Energy tend to spread out spontaneously

Which microscope can show internal structures?

Transmission electron microscope

studbud

BIO1 Exam 1 Review

70 termsStudBud Administration63 plays

Covers chapters 1-5

Flashcards70 cardsFPractice quizPHost liveL

Questions 70

Answers

1
How do we define an isotope?
An element with different # of protons but same # of neutrons
An element with different # of neutrons but same # of protons
An element with different # of electrons but same # of protons
2
Energy transformations are 100% efficient
True
False
3
The following image shows an example of what kind of energy?
Potential energy
Kinetic energy
4
The general movement of particles down their concentration gradient with no energy requirement is
Passive Transport
Osmosis
Diffusion
Active Transport
5
Which statement best describes the following image?
Hydrolysis, catabolic reaction, exergonic reaction
Hydrolysis, catabolic reaction, endergonic reaction
Hydrolysis, anabolic reaction, exergonic reaction
Dehydration synthesis, anabolic reaction, endergonic reaction
6
Chemical energy is an example of potential energy
False
True
7
Which of the following are examples of nucleic acids?
Steroids, Phospholipids, Fats
Enzymes, transport proteins
Cellulose, Starch, Glycogen
DNA, RNA
8
If neither the participants nor the experimenters know who the control group is, this is considered a...
Single blind experiment
Double blind experiment
9
Which is true about saturated and unsaturated fats?
Unsaturated: double bonds, liquid at room temp, kinked chain
Neither are correct
Both are correct
Saturated: single bonded, solid at room temp, straight chain
10
Which subatomic particle is directly involved in chemical reactions?
They all do!
Protons
Neutrons
Electrons
11
In a hypertonic solution
The cell pops (lysed)
Water moves out the cell
Solute concentration in solution is less than solute conc in the cell
Water moves into the cell
12
Interactions within biological systems give rise to emergent properties
False
True
13
An inhibitor that binds to the allosteric site of an enzyme is a
Competitve inhibitor
Induced fit
Non competitive inhibitor
14
What makes a molecule organic?
They are C & H based
They are H based
They are not C or H based
They are C based
15
What functional groups are found in this amino acid?
Amine & Hydroxyl
Hydroxyl & Carboxyl
Amine & Carboxyl
Amine & Carbonyl
16
What is the polymer of a lipid?
Polypeptide
Fatty acid
Triglyceride
None of the above
17
In a hypotonic solution
Solute concentration in solution is less than solute conc in the cell
Solute concentration in solution is more than solute conc in the cell
The cell shrivels or is plasmolyzed
Water moves out of the cell
18
What is the correct order of the scientific method?
Observation - question - hypothesis - prediction - experiment
Observation - question - prediction - hypothesis - experiment
Experiment - prediction- question- observation - hypothesis
19
What would be our dependent variable in that same experiment?
Temp of milk
Milk brand
Cookie brand
The amount of time each cookie brand floated for
20
What functional group is found in fatty acids?
Carbonyl
Carboxyl
Amine
Hydroxyl
21
The general rule for sample size is: the bigger the better!
False
True
22
What is the monomer of a polysaccharide?
Monosaccharide
Amino acids
Carbohydrates
Glucose
23
Which of the following is a part of the cell theory?
Cells are fundamental units of structure, function, & organization of life
Not all living organisms are made of cells
Cells contain hereditary material
Cells process energy
24
Which of the following correctly lists the hierarchy of organization from least to most complex?
Biosphere- ecosystem- community
Cell - atom- molecules
Population- ecosystem - community
Organ- organ system- organism
25
Which microscope can view live specimens?
Scanning electron microscope
Transmission electron microscope
Light microscope
26
What functional group is this and what new characteristic does it give?
Phosphate group: polar, acidic
Carboxyl: acidic
Amino: basic
Hydroxyl: polar
27
An isotope with a nucleus that decays spontaneously, giving off particles and energy is
Stable
Unstable
28
A cell w/membrane bound organelles, 1 or more linear chromosomes, & cytoplasm between the nucleus & plasma membrane
Prokaryotic
Eukaryotic
29
Which of the following correctly describes what is going on in the image?
Two answers are correct
Dehydration synthesis
Endergonic reaction
Catabolic reaction
30
What is the mass number?
15.999
8
31
How do we define the scientific method?
A process used only in the field of science
A process based on emotion to solve problems & answer questions
A series of steps used to answer questions
A rigid procedure
32
Which components are found in all cells (prokaryotes & eukaryotes)?
Cuticle, flagella, cilia, ribosomes
DNA, cytoplasm, ribosome, plasma membrane
Chloroplast, cell membrane, mitochondria, DNA
DNA, mitochondria, golgi apparatus, cell wall
33
Ionic bonds are formed when...
Two atoms don't equally share electrons
Oppositely charged ions attract one another
Two atoms equally share electrons
H atoms with a slight + charge bind to an atom with a slight - charge
34
An atom has 25 protons, 12 neutrons, and 15 electrons. What is the atomic number, mass number, and charge?
25, 37, +10
37, 25, +10
37, 25, -10
25, 37, -10
35
Which organelle has diverse enzymes that help produce lipids, break down carbs, detox, & contract muscles?
Smooth ER
Rough ER
Vescicles
Lysosomes
36
Active transport
Examples include endocytosis & endocytosis
Moves substances against its concentration gradient
Requires energy
All of the above
37
We want to see which brand of cookie floats the longest in milk. What should we keep as a constant?
Two answers are correct
Temp of the milk
Type of cookie
Time left in milk
38
A tissue is made up...
A bunch of atoms
A bunch of cells
A bunch of organs
39
With of the following matches are incorrect:
Neutrons have 0 charge
Neutrons have - charge
Protons have + charge
Electrons have a - charge
40
Which of the following would lead to an increase in diffusion rates?
Increased temperature
Increased molecular weight
Lowered temperature
41
C14 decays into...
C12
N12
N14
42
Living cells can distinguish between isotopes of the same elements
True
False
43
In that same cookie experiment, what would be our independent variable?
How much time each cookie brand floated for
Milk brand
None are correct
Cookie brand
44
Which are the following is/are true in regards to pH?
Base: a compound with pH above 7, removes H+ from solutions
All of the above are true
Buffers maintain pH by donating & accepting ions
Acid: a compound with a pH below 7, releases H+ into a solution
45
Endocytosis, a type of active transport....
Requires energy
Brings material into the cell
Carries material out of the cell
Two answers are correct
46
What new characteristic does this functional group give?
Polar, acidic
Polar
Basic
Acidic
47
If a protein found in a solution of pH= 10 is dropped into a solution pH = 2, what structure is denatured?
Tertiary
Quaternary
Secondary
Primary
48
The 2nd law of thermodynamics states that:
Energy tend to spread out spontaneously
Energy can be transformed or transferred
The amount of energy before & after conversion is the same
Energy cannot be created or destroyed
49
In a ______ reaction, reactants have more potential energy than products
Anabolic
Exergonic
Endergonic
Catabolic
50
Which microscope can show internal structures?
Light microscope
Scanning electron microscope
Transmission electron microscope
51
Which of the following are common properties of biology?
Neither are correct, they are major themes in biology
Order, response to environment, reproduction, regulation
Both are correct
Evolution, growth & development, cells, energy processing
52
If an atom's valence shell has vacancy, it will be chemically active
False
True
53
In osmosis, ____ moves down its concentration gradient and across a membrane
Particles
Solute
Water
54
Radioactive tracers are defined as
Detectable components that can be tracked in the body
A tool for archeological dating
Elements that make up less than 0.01% of human body weight
Elements required in trace amounts
55
The following is/are characteristic(s) of matter
All of the above
Occupies space & mass
Consists of one kind of atom
Composed of chemical elements
56
Chloroplasts perform photosynthesis to convert ____ energy to ____ energy
Potential, kinetic
Light, chemical
Chemical, light
57
How do we define the endomembrane system?
Interacting organelles between the nucleus & plasma membranes
Membrane enclosed organelles that transport substances
Diverse enzymes that help produce lipids
Receiving & shipping center
58
When energy from oxidation of nutrients is used to make ATP it is called?
Oxidative phosphorylation
Phosphate transfer
Substrate level phosphorylation
59
Phosphorylation of ADP is
Endergonic
Exergonic
60
Nonpolar covalent bonds occur between
Atoms with the same electronegativity
Atoms with different electonegativity
61
Which of the following are energy converting organelles?
Ribosomes & Chloroplasts
Mitochondrion
Smooth & Rough ER
Chloroplasts & mitochondrion
62
Atoms make up elements, elements make up matter
True
False
63
In an isotonic solution
All of the above
Water moves into and out of the cell at equal amounts
The cell remains the same size
We have the same solute concentration inside and outside the cell
64
What is a theory?
A testable explanation
Educated guess
A reliable explanation supported by research
Information considered to be objectively true
65
What about in this image?
Kinetic energy
Potential energy
66
How do we define the term fact?
Statement that explains what should occur if the hypothesis is correct
Information to be considered objectively true
A reliable explanation supported by extensive research
67
What is the monomer of a polypeptide chain?
Proteins
Monosaccharides
Nucleic acids
Amino Acids
68
Which of the following statements about bonds in and between water molecules is true?
H bonds are found between water molecules and polar bonds are found within
H bonds are found within water molecules and polar bonds are found between
69
Mitochondria undergo cellular respiration to convert ____ energy to ____
Chemical, ATP
Light, ATP
Chemical, light energy
70
How would you describe a reaction where energy is invested to create large compounds?
Endergonic, anabolic
Anabolic
Endergonic
Exergonic, catabolic

BIO1 Exam 1 Review Flashcards | StudBud