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WorksheetsBiology Semester 1 Review A
Total questions: 100
Worksheet time: 1hrs 22mins
Name
Class
Date
1.
What is a hypothesis?
a)
A hypothesis is the right answer to an experiment.
b)
A hypothesis is the wrong answer to an experiment.
c)
A hypothesis is an educated guess.
d)
I don't know.
2.
What is a hypothesis?
a)
A hypothesis....duh!
b)
A prediction about the results of an experiment
c)
An educated guess
d)
A form of testable question
3.
What is an observation?
a)
Looking at something, then making an educated guess.
b)
Natural world, using 5 senses.
c)
Seeing and observing.
d)
Creating an experiment.
4.
Observation, Inference, or Prediction?
I scored advance proficient on my unit exam.
I scored advance proficient on my unit exam.
a)
Observation
b)
Inference
c)
Prediction
5.
Which of the following describes a scientific theory?
a)
A scientific theory, once established, can never be changed
b)
A scientific theory is a good guess made by very smart people
c)
A scientific theory explains a broad range of observed facts
d)
A scientific theory is an explanation proven beyond reasonable doubt
6.
What particle provided the positive charge for an atom?
a)
proton
b)
neutron
c)
electron
d)
nucleus
7.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
8.
Which particle only contributes to the mass of an atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
9.
What kind of bond forms when atoms share electrons?
a)
Chemical bond
b)
Ionic bond
c)
Covalent bond
d)
Electron bond
10.
What monomers make up a protein?
a)
glycogen and monosacchrides
b)
glycerol and fatty acids
c)
amino acids
d)
nucleotides
11.
What monomers make up lipids?
a)
glycogen and monosacchrides
b)
glycerol and fatty acids
c)
DNA
d)
Carbon and Phosphorous
12.
Monosacchrides put together create?
a)
big monomers
b)
fructose
c)
diesacchrides
d)
polysacchrides
13.
What are the uses of carbohydrates?
a)
energy storage and Cell walls
b)
waxes and hormones
c)
hair and nails
d)
RNA and DNA
14.
Chains of amino acids are folded together to create...
a)
sugar
b)
salt
c)
protein
d)
DNA
15.
What macromolecule makes up genetic information?
a)
Lipids
b)
Proteins
c)
Nucleic Acids
d)
Carbohydrates
16.
What macromolecule makes up muscle fibers, enzymes, membranes, and antibodies?
a)
Protien
b)
Lipid
c)
Carbohydrate
d)
Nucleotide
17.
What is another name for enzymes?
a)
chemical catalyst
b)
microorganism
c)
biological catalyst
d)
catalyst
18.
which one of the following is NOT the property of enzymes?
a)
enzyme actions are specific
b)
enzymes can be reused
c)
enzymes are affected by pH
d)
Optimum temperature of all enzymes is 37
19.
All organisms are made of:
a)
organelles
b)
cytoplasm
c)
DNA
d)
cells
20.
All existing cells are produced by other
a)
living cells
b)
dead cells
c)
atom cells
d)
animal cells
21.
This is the most basic unit of life
a)
atom
b)
cell
c)
nucleus
d)
DNA
22.
This is the more complex cell due to the organelles it contains
a)
Eukaryotic cell
b)
Prokaryotic cell
c)
Both
d)
Neither
23.
What of the following is a prokaryote?
a)
animal cell
b)
bacteria
c)
virus
d)
plant cell
24.
Which shows the levels of living organization from smallest to largest?
a)
atoms, cells, tissues, organs, organisms
b)
cells, tissues, organs, organelles, organisms
c)
atoms, molecules, organelles
d)
cells, tissues, organs, organ systems, organisms
25.
Which cell structure is correctly paired with its primary function?
a)
ribosome - movement
b)
mitocondrion - energy production
c)
vacuole - cell division
d)
nucleus - storage of nutrients
26.
Which of the following contain complex, membrane-bound organelles?
1. bacteria
2. viruses
3. eukaryotic
4. prokaryotic
1. bacteria
2. viruses
3. eukaryotic
4. prokaryotic
a)
1 and 2
b)
2 and 4
c)
3 only
d)
4 only
27.
What is the function of the cell membrane?
a)
Supports and protects the cell
b)
Controls the cell
c)
Controls what enters and leaves the cell
d)
Metabolic reactions occur here
28.
Which organelle sorts, modifies and packages molecules for storage in the cell or secretion out of the cell?
a)
Mitochondria
b)
Smooth Endoplasmic Reticulum
c)
Rough Endoplasmic Reticulum
d)
Golgi Body
29.
Animal cells DO NOT have ...
a)
Mitochondria
b)
Lysosomes
c)
Vacuoles
d)
Chloroplasts
30.
This process happens inside chloroplasts
a)
Cellular Respiration
b)
Photosynthesis
c)
Protein Synthesis
d)
Osmosis
31.
Which cell part is a tiny structure that produces proteins?
a)
ribosome
b)
nucleus
c)
lysosome
d)
mitochondria
32.
A prokaryotic cell does have:
a)
nucleus
b)
mitochondria
c)
DNA
d)
endoplasmic reticulum
33.
This structure is only in plant cells. It is outside of the cell membrane and adds more support/structure to the plant.
a)
Cell membrane
b)
Cell Nucleus
c)
Cell Wall
d)
Endoplasmic Reticulum
34.
Osmosis
a)
diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
b)
the diffusion of particles from an area of high concentration to an area of low concentration
c)
diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
d)
the diffusion of particles from an area of low concentration to an area of high concentration
35.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
36.
This picture represents which type of cellular transport?
a)
passive transport
b)
endocytosis
c)
exocytosis
d)
osmosis
37.
Which is true about active transport?
a)
It requires energy
b)
it does not require energy
c)
It moves substances down the concentration gradient
d)
it moves material from high to low concentration
38.
What does homeostasis mean?
a)
Temperature
b)
Water
c)
Cells
d)
Steady state
39.
What is a group of organs that work together?
a)
Cell
b)
Tissue
c)
Organ Group
d)
Organ System
40.
What is a group of similar cells that work together?
a)
Tissue
b)
Organ
c)
Cell group
d)
Organ system
41.
Which of these does NOT apply to the cell theory?
a)
All living things are composed of one or more cells
b)
Cells are the basic unit of structure and function
c)
Cells are produced only from existing cells
d)
All cells have the same organelles and functions
42.
List life organization from simple to complex
a)
macromolecules, atoms, tissues
b)
cells, organ, organism
c)
tissues, cells, organ system
d)
organ system, organ, tissue
43.
What are the raw materials in Photosynthesis?
a)
water and oxygen
b)
ATP, glucose, and carbon dioxide
c)
water and carbon dioxide
d)
exocytosis, and endcytosis
44.
Which of the following formulas represents photosynthesis?
a)
6 H2O + 6 O2 = C6H12O6 + 6 CO2
b)
6 H2O + 6 CO2 = C6H12O6 + 6 O2
c)
C6H12O6 + + 6 O2 = 6 H2O + 6 CO2
45.
Organisms that cannot make their own food and must obtain energy from external sources are called
a)
autotrophs
b)
heterotrophs
c)
thylakoids
d)
plants
46.
What is the ultimate source of energy for life on Earth?
a)
glucose
b)
sunlight
c)
ATP
d)
H2O
47.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
48.
Autotroph or Heterotroph?
a)
Autotroph
b)
Heterotroph
49.
Autotroph or Heterotroph?
a)
Autotroph
b)
Heterotroph
50.
The light reactions of photosynthesis supply the Calvin cycle with
a)
light energy
b)
ATP and NADPH
c)
H2O and NADPH
d)
CO2 and ATP
51.
chlorophyll
a)
green pigment
b)
A liquid
c)
Type of texture
d)
All of above
52.
Carbon dioxide
a)
a type of gas needed by plants
b)
Breathing
c)
gas
d)
stuff
53.
What gas does the process of photosynthesis release into the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
54.
What are the products of photosynthesis?
a)
water and oxygen
b)
glucose and oxygen
c)
glucose and carbon dioxide
d)
water and carbon dioxide
55.
The process that takes place when organic compounds are broken down in the absence of oxygen is
a)
cell respiration
b)
photosynthesis
c)
Calvin cycle
d)
fermentation
56.
What product of photosynthesis is needed for heterotrophs to produce energy?
a)
oxygen
b)
carbon dioxide
c)
water
d)
sunlight
57.
The complete reaction of cell respiration begins in the cytoplasm and ends in the
a)
mitochondria
b)
chloroplast
c)
ribosome
d)
nucleus
58.
In general, cell respiration
a)
occurs only in animals
b)
occurs only in heterotrophs
c)
occurs before photosynthesis
d)
breaks down food molecules to release stored energy
59.
Energy produced by cell processes is stored as
a)
DNA
b)
ATP
c)
water
d)
carbon dioxide
60.
How are lactic acid and alcoholic fermentation similar?
a)
They have the same products
b)
They have the same reactants
c)
They both require oxygen
d)
They occur in the same organisms
61.
Which organisms perform CELLULAR RESPIRATION?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
62.
Which of the following is the correct equation for CELLULAR RESPIRATION?
a)
Sugar + O2 --> CO2 + H2O + ATP
b)
ATP + O2 --> CO2 + H2O + sugar
c)
Sugar + CO2 --> O2 + H2O + ATP
d)
Sugar + H2O + O2 --> CO2 + O2 + ATP
63.
A cell is limited in size by access to the genetic information contained in its
a)
cytoplasm
b)
cell membrane
c)
DNA
d)
organelles
64.
For a cell to divide successfully, it must first
a)
form a new cell plate or cell membrane
b)
divide its cytoplasm and organelles
c)
increase its number of chromosomes
d)
copy its genetic information
65.
the uncontrolled division of cells that results in malignant growth
a)
tissues
b)
cancer
c)
mitosis
d)
anaphase
66.
During interphase, a cell grows, dublicates organelles, and...
a)
copies DNA
b)
divides the nucleus
c)
divides the cytoplasm
d)
produces a new cell
67.
Substage of interphase immediately after a cell divides
a)
G1
b)
Synthesis
c)
G2
d)
Mitosis
68.
the phase in mitosis where chromosomes line up in the middle of the cell and the nucleus disapears.
a)
prophase
b)
metaphase
c)
anaphase
d)
telephase
69.
The cell membrane pinches in, dividing the cytoplasm into 2 cells
a)
Metaphase
b)
Anaphase
c)
Telephase
d)
Cytokinesis
70.
Does the number of chromosomes in mitosis change?
a)
Yes
b)
no
c)
none of these its asexual
71.
The cells produced via meiosis are called:
a)
gametes
b)
somatic cells
c)
body cells
d)
skin cells
72.
This produces sex cells.
a)
mitosis
b)
meiosis
73.
This process produces cells with only 1/2 of the chromosomes as body cells.
a)
mitosis
b)
meiosis
74.
If a liver cell has 10 chromosomes, how many does a sperm cell have from the same species?
a)
20
b)
10
c)
5
d)
40
75.
The backbone of a DNA molecule is made of which two components?
a)
phosphate molecules and ribose sugars
b)
deoxyphosphate molecules and ribose sugars
c)
phosphate molecules and deoxyribose sugars
d)
deoxyphosphate molecules and deoxyribose sugars
76.
A DNA nucleotide may be made up of a phosphate group, along with _____.
a)
deoxyribose sugar and uracil
b)
ribose sugar and adenine
c)
deoxyribose sugar and thymine
d)
ribose sugar and cytosine
77.
Which sequence of DNA bases would pair with this partiaal strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
78.
DNA contains the code for constructing which molecules?
a)
proteins
b)
starches
c)
fats
d)
sugars
79.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
80.
Which of the following is the blueprint for the production of RNA within a cell?
a)
DNA
b)
protein
c)
ATO
d)
carbohydrate
81.
When an extra base is inserted into the DNA sequence of a gene, the protein doesn't work. Which explains why?
a)
the base increases rate of translation
b)
the base causes DNA to be transcribed in opposite direction
c)
the inserted base causes the codons in the sequence to be incorrect for the desired protein
d)
the base signals enzymes to translate DNA rather than RNA
82.
Which of the following best describes how DNA and RNA are similar?
a)
they both contain A and T
b)
They both have a double helix
c)
They are both composed of 5 different nucleotides
d)
they both have C and G
83.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
84.
Where does DNA replication take place?
a)
Nucleus
b)
Ribosome
c)
Cytoplasm
d)
Golgi Body
85.
A triplet of mRNA is called a
a)
codon
b)
anticodon
c)
amino acid
d)
peptide bond
86.
The codon is located on the
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
87.
Where does protein synthesis take place?
a)
Ligase
b)
Ribosomes
c)
Codon
d)
Endoplasmic Reticulum
88.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
89.
difference among members of a specie
a)
population
b)
variation
c)
artificial selection
d)
gene pool
90.
all of the alleles in all the individuals that make up a population
a)
population
b)
variation
c)
artificial selection
d)
gene pool
91.
selective breeding of domesticated plants and animals to produce offspring with desired genetic trait
a)
population
b)
variation
c)
artificial selection
d)
gene pool
92.
condition that occurs when the frequency of alleles in a particular gene pool remain constant over time
a)
microevolution
b)
Hardy-Weinberg equilibrium
c)
genetic drift
d)
gene flow
93.
How do scientists cut DNA into smaller strands?
a)
restriction enzymes
b)
scissors
c)
ligase
d)
agarose
94.
In the image, why are there multiple bands in each lane?
a)
The bands represent various size fragments of DNA
b)
The bands represent how much electricity was used to run the gel
c)
We’re not sure why this happens
d)
The bands are random and there’s no way to predict what it means
95.
What is the reason for putting the DNA size standard in the gel?
a)
To run more than one sample.
b)
To get the DNA sample to move through the gel.
c)
To get an idea of how long your DNA sample strands are.
d)
To make your DNA sample look more symmetric in the gel.
96.
What affects do mutations have on genes?
a)
Can cause illnesses
b)
Can cause a change in DNA that causes a change in apperance
c)
Can change the way a cell or trait was supposed to be made
d)
Can lead to a change in the protein that is supposed to be made in a gene
97.
Whats a transgenic animal?
a)
An animal that changes genetically into an opposite gender
b)
2.An animal that mutates to have offspring that are different from the parents
c)
3.An animal that can automatically change its DNA structure to look different
d)
4.An animal that carries a foreign gene that has been carefully inserted into its genome
98.
The process of manipulating genes and genomes is
a)
gene reproduction
b)
genetic engineering
c)
biotechnology
d)
cloning
99.
The picture shown represents a
a)
homologous structure
b)
embryonic structure
c)
vestigial structure
d)
analagous structure
100.
All living organisms share:
a)
DNA
b)
some genetic material
c)
a missing link
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