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Life Science Midterm Review Flashcards | StudBud
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Life Science Midterm Review
Life Science Midterm Review
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1
What does the cell theory state?
All of the above statements are correct.
All known living things are made up of one or more cells.
All living cells arise from pre-existing cells by division
A cell is the basic unit of structure and function in all living organisms
2
The cell membrane is ...
thing being dissolved
an example of osmosis
what is dissolving
selectively permeable
3
Were is the cell membrane?
the middle
In the center
On the outside of the cell
4
the part of an experiment that you are measuring. This changes due to the introduction of the independent variable.
Control
Dependent Variable
Independent Variable
Constants
5
The mitochondria does...
Secretes hormones
Produces energy and ATP
Gives support to the cell
Produces proteins
6
What is a Punnett Square?
Square diagram that predicts the future
Pea plant chart
Square diagram that predicts geneotypes
It is a mystery
7
What is the control in an experiment
the factors or conditions that you manipulate in an experiment
an element that remains unchanged or unaffected by other variables
The mitochondria is the powerhouse of the cell
what is being measured in an experiment
8
Identify the control group in the experiment:
Plant A
Plant B
Music
Number of tomatoes
9
The result of mitosis is
4 genetically identical daughter cells
2 genetically identical daughter cells
2 genetically unique daughter cells
4 genetically unique daughter cells
10
what are the four macromolecules
Protein, Lipids, Carbohydrates, Amino Acids
Proteins, Lipids, Carbohydrate, Nucleic acid
Lipids, protists, carbohydrates, Nucleic acid
11
Prokaryote or Eukaryote?
Neither
Both
Eukaryote
Prokaryote
12
What is unicellular
A celled organism
A singled celled organism
A multicelled organism
Someone that is small with cells
13
Unicellular or Multicellular?
Unicellular
Multicellular
14
The function of the chloroplast is....
Helps the cell move around.
Holds the cell together.
Converts light energy into chemical energy, or photosynthesis.
Breaks down the old parts of the cell.
15
Rough ER
Filled with digestive enzymes/"Garbageman of cell"
Makes proteins for cells
Center of nucleolus/Where RNA is found
16
The basic function of life that states that the living thing is able to create an offspring. Can be sexual or asexual.
Homeostasis
Reproduction
Organization
17
This punnett square shows and example of:
Incomplete Dominance
Codominance
18
What are the products of cellular respiration?
Glucose and O2
Ethanol and CO2
Lactic Acid
H2O and CO2 and ATP
19
What is Eukaryote ?
A cell which has no nuclear membrane around its genetic material
A group of similar organisms
A kingdom of autotrophs
A cell which has a nuclear membrane around its genetic material
20
what do organelles do?
responsible for production of ribosomes
directs cell activities
regulates what enters and leaves the cell
perform specific functions within the cell
21
what does multicellular mean?
having more than 1 cells
having 1 cell
22
What is a hypothesis?
something that you learn in science
a factor that is adjusted by the experiment
educated guess or testable prediction
a store in Poland
23
the part of the experiment that the experimenter/you change.
Dependent Variable
Control
Independent Variable
Constants
24
Define Dominant Allele
Always shows it's traits
Correct answer not shown
Only visible when two alleles are present
25
When do you start the scientific method?
When you get the results.
When you have to do research.
When you have a question.
When the question works.
26
What are the reactants of cellular respiration?
H2O and CO2
ATP
Glucose and O2
27
What stage of meiosis is this?
Prophase II
Metaphase I
Prophase I
Telophase I
28
What does a Ribosome do
Makes proteins
Makes the cell green
Holds information on how to make the cell
Creates energy for the cell
29
Define Recessive Allele
None of the above
A genetic code
Only visible when two alleles are present
Always visible
30
The Golgi Body...
gives the cell it's shape
provides energy to the cell
modifies and packages proteins
makes the cell move around
31
What are the stages of mitosis?
Telophase and Metaphase
Telophase and Anaphase
Anaphase, Metaphase, and Telophase
Prophase, Metaphase, Anaphase, and Telophase
32
digest excess or worn out organelles
retinol
centriole
ventriole
lysosomes
33
what cell has chloroplast
plant
animal
bacteria
34
What occurs third during the cell cycle?
Prophase.
Interphase.
Metaphase.
Anaphase.
35
Codominance means…
Two alleles are expressed simultaneously.
Two alleles produce an intermediate phenotype.
Traits are mixed.
Two alleles dominate over recessive alleles of the same gene
36
Everything that must remain the same through all trials.
Independent Variable
Constants
Control
Dependent Variable
37
What is a genotype?
Dominant Trait
Physical Trait
Genetic Code
Recessive Trait
38
Unicellular or Multicellular?
Multicellular
Unicellular
39
A Prokaryote is a..
A cell with no cell wall
A single cell with no true nucleus
A cell with no mitochondria
A simple animal
40
So, human cells at the end of MEIOSIS I have...
46 chromosomes
23 chromosomes
41
Define an allele
The thing that controls the nucleus
A unique forms of gene
It's part of the nucleus
A cluster of chromosomes
42
This is the first step of the scientific method and the step where you make an observation
Hypothesis
Experiment
Question
Share Results
43
What does the cell wall do?
Provide support and protection
Captures energy
Produce proteins
Stores materials
44
How could you tell if this is a plant vs. an animal cell?
there´s no way to tell
look for the nucleus, you could tell by looking at that
look for the chloroplasts, plant cells have those
look for the mitochondria, animal cells have those
45
How do vacuoles differ in a plant cell vs an animal cell?
Vacuoles in plant cells are smaller than in animal cells.
Vacuoles are larger in plant cells than in animal cells.
Vacuoles are larger in animal cells than in plant cells.
46
Incomplete dominance is when...
one allele controls another allele
both allele blend
both alleles coexist
47
Meiosis is..
cell division that is required for sexual reproduction.
asexual reproduction
two new cells resulting from the original cell.
cell division that forms sex cells
48
What are the steps of the scientific method?
Question, Hypothesis, Research, Experiment, Analyze, Conclusion
Conclusion, Experiment, Hypothesis, Research, Question, Analyze
Question, Research, Hypothesis, Experiment, Analyze, Conclusion
Question, Analyze, Experiement, Research, Hypothesis, Conclusion
49
final step of scientific method
theory
hypothesis
results & conclusions
modeling
50
Prokaryote or Eukaryote?
Prokaryote
Both
Neither
Eukaryote
51
The physical expression of a genotype ?
genotype
phenotype
alleles
genes
52
An example of codominance would be...
Solid yellow flower
Solid light blue flower
Solid white flower
Purple flower with white center
53
A gene is...
RNA
A segment of DNA that codes for something
An Allele
DNA found on a chromosome
54
What is the fifth step of the cell cycle?
Telophase.
Interphase.
Metaphase.
Prophase.
55
Products: Photosynthesis
Glucose and Carbon dioxide
Glucose and Oxygen
Water and Oxygen
Carbon dioxide and Water
56
Mitosis is...
cells that are produced and genetically distinct.
a process where the cells create identical copies of itself
sexual reproduction to produce living cells not identical
the process to create a child
57
Incomplete Dominance
All 8 will be purple
4 will be blue and 4 will be red
4 will be blue and 4 will be purple
All 8 will be blue
58
What are the parents of the punnett square below?
TT, tt
tt, Tt
Tt, Tt,
tt, tt
59
What is the first step of the cell cycle?
Telophase.
Prophase.
Interphase.
Anaphase.
