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Semester Exam 16-17 Flashcards | StudBud
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Semester Exam 16-17
Semester Exam 16-17
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Biology Units 1-5
Flashcards
44 cards
F
Practice quiz
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Host live
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Questions
44
Answers
1
A variable that stays the same throughout the experiment for all trials and groups is
A dependent variable
A control variable
A control group
A control test
2
DNA replication results in:
two new strands of DNA
One with 2 new strands and the other with 2 originals
each with two original strands
each with one new strand and one original strand
3
What phase of mitosis do the sister chromatids move away from each other?
Prophase
Metaphase
Anaphase
Telophase
4
What macromolecule is used for making antibodies, enzymes and muscle?
Protein
Nucleic Acid
Lipid
Carbohydrate
5
What phase of mitosis do chromosomes line up in the middle of the cell?
Anaphase
Prophase
Telophase
Metaphase
6
What organelle packages and transports proteins and lipids throughout the cell?
Golgi Body
Mitochondria
Rough ER
Ribosome
7
Which characteristic of living things explains why offspring have similar traits as parents?
Living things maintain homeostasis
Living things pass on genetic information using DNA
Living things are composed of cells
Living things respond to the environment
8
What macromolecule is used for long term energy storage and makes up the cell membrane layers?
Nucleic acid
Protein
Lipid
Carbohydrate
9
All living organisms have this in common
They all have 46 chromosomes
All are eukaryotes
They all use DNA and RNA
Linear DNA
10
The structure that moves to the opposite sides of the cell and attached the spindle.
Centriole
Centromere
Chromosome
Chromatin
11
What macromolecule is used for short term energy storage and cell walls in plants?
Protein
Nucleic Acid
Carbohydrate
Lipid
12
If Kool-Aide is dissolved in water the water is the?
Solute
Solvent
reactant
Solution
13
Which is a goal of science?
To explain events in the natural world
To investigate and understand the natural world
To use explanations to make useful predictions
All of the Above
14
What is biology?
The study of the living world
The study of cells
The study of rocks and organisms
None of the above
15
What is the movement of small molecules like O
2 &
CO
2
across a selectively permeable membrane?
Active Transport
Diffusion
Exocytosis
Osmosis
16
If when placed in a solution the cell shrinks the solution is?
Isotonic
Hypertonic
Hypotonic
At equilibrium
17
What kind of bond holds nitrogenous base pairs together in DNA?
Hydrogen
Ionic
Covalent
They are not bonded together
18
What is not a job of the Nucleus
Store DNA
Contains directions needed to make proteins
Regulates cell processes
Makes carbohydrates that are ID tags for the cell
19
When molecules are too large to enter the cell through the membrane they use the process of?
Passive Transport
Simple Diffusion
Exocytosis
Endocytosis
20
Which side of the reaction is the products? CO
2
+ H
2
O --Sun---> C
6
H
12
O
6
+ O
2
Right
Left
21
A variable that is changed or manipulated on purpose by a scientist in an experiment is a(n)
Dependent variable
Secure variable
Control variable
Independent variable
22
When different cells are used for specific jobs in an organism it is called?
Cell orientation
Cell specialization
Cell customization
Individualization
23
The name to represent the change in shape of the enzyme molecule in this picture is?
The induced fit model
The enzyme substrate complex
The 3D enzyme model
The active site model
24
The energy required to start a chemical reaction is?
Chemical Energy
Unusable energy
Start Up energy
Activation Energy
25
Which organelle is responsible for regulating what enters and exits the cell?
Mitochondria
Cell Membrane
Golgi Body
Vacuole
26
What makes up the backbone portion of the DNA?
Nitrogenous bases
a nitrogenous base and the deoxyribose
a nitrogenous base and a phosphate group
deoxyribose and phosphate group
27
What is an enzyme?
None of the above
Always used to break apart molecules
A protein that helps to speed up chemical reactions
A carbohydrate that is involved in the production of ATP
28
A theory is...
Always true
A tested explanation that unifies a range of observations
A proven fact
Is always part of a controlled experiment hypothesis
29
Which is
NOT
a reason scientist publish their work?
So their work can be reviewed by other scientists
So others can try to reproduce the result
To prove their point
So that it can be repeated
30
The structure that holds 2 sister chromatids together.
Chromatin
Centriole
Centromere
Chromosome
31
What macromolecule makes up DNA and RNA which stores our genetic information?
Protein
Nucleic Acid
Carbohydrate
Lipid
32
In mitosis, a parent cell with 12 chromosomes will have 2 daughter cells with:
12 chromosomes
12 chromatids
24 chromosomes
6 chromosomes
33
What are the components of a nucleotide?
Deoxyribose, phosphate and a nitrogenous base
Sugar, nitrogenous base and a lipid
Deoxyribose, ribose and phosphate
Sugar, phosphate and a lipid
34
The previous question describes the :
Semi-conducive model
None of the above
Semi-stranded model
Semi-conservative model
35
These are the organelles produced by the Golgi Body
Nucleus
Vacuoles
Ribosomes
Vesicles
36
What is a difference between eukaryotes and prokaryotes?
The presence of Ribosomes
The shape of the DNA
The presence of a cell membrane
None of the above
37
What is the correct order of mitosis?
Prophase, metaphase, telophase, anaphase
Prophase, metaphase, anaphase, telophase
Metaphase, anaphase, prophase, telophase
Prophase, telophase, metaphase, anaphase
38
A hypothesis is...
Is proven correct
Is a theory written in a different way
Can be tested and be accepted or rejected
Is always correct
39
What phase of mitosis does the nuclear membrane disappear and centrioles appear?
Prophase
Metaphase
Telophase
Anaphase
40
The Channels and pumps with in the cell membrane are made of what type of molecules?
Proteins
Cholesterol
Carbohydrates
Lipids
41
What is not a difference between plant and animal cells
Cell Walls
Mitochondria
Chloroplasts
Vacuole size
42
How does an enzyme speed up a chemical reaction?
By heating up the reactants
By using energy in the air to complete the reaction
By lowering the Activation Energy
By mixing the reactants faster
43
What phase of mitosis do the nuclear membranes reform and the cleavage furrow is present?
Prophase
Telophase
Metaphase
Anaphase
44
What is the simplest level of organization in a multi cellular organism?
Organ
Cell
Organelle
Tissue
