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WorksheetsBiology Final Practice
Total questions: 70
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
Enzymes are considered to be
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
2.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
3.
What 3 letters do enzymes typically end in?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
4.
What makes an enzyme substrate specific?
a)
Size
b)
Shape
c)
Name
d)
Location it is found in
5.
How do enzymes increase the speed of chemical reactions?
a)
reducing the number of products
b)
reducing the activation energy
c)
increasing the temperature of the cell
d)
increasing the concentration of reactants
6.
can a change in pH alter the active site of an enzyme
a)
yes
b)
no
7.
Which of these is NOT true?
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction.
c)
Extreme pH can denature enzymes.
d)
Enzymes speed up chemical reactions.
8.
Each enzyme only has 1 substrate that will fit its active site. What is this called?
a)
reusablility
b)
denaturation
c)
specificity
d)
fragility
9.
Lactose intolerance is caused by...
a)
an infection
b)
a bite of a mosquito
c)
Deficiency of enzymes that metabolize carbohydrates
10.
Lactase breaks up lactose into glucose and galactose. What can scientist measure to see if lactase is present?
a)
Blood glucose levels
b)
How much milk a person can drink
c)
How fast a person can drink milk
d)
Blood lactase levels
11.
Plants need ________ to conduct photosynthesis
a)
Oxygen
b)
Soil
c)
Carbon dioxide
d)
Sugar
12.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
13.
Which organelle in the plant cell performs photosynthesis?
a)
Chloroplast
b)
Mitochondria
c)
Nucleus
d)
Cytoplasm
14.
What are the products of photosynthesis (what is made)?
a)
Glucose and Chlorophyll
b)
Glucose and Oxygen
c)
Water and Light
d)
Carbon dioxide and Water
15.
What is the source of energy for photosynthesis?
a)
Carbohydrates (chemical energy)
b)
Light (radiant energy)
c)
Heat (thermal energy)
d)
Wind (kinetic energy)
16.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
does not absorb green light.
d)
does not absorb violet light.
17.
Which of the following would have affect the rate of photosynthesis?
a)
amount of water
b)
carbon dioxide concentration
c)
temperature
d)
all of these
18.
Where does cellular respiration occur?
a)
Nucleus
b)
Mitochondria
c)
Vacuole
d)
Chloroplast
19.
This means that oxygen is needed
a)
anaerobic
b)
aerobic
20.
What are the products of aerobic respiration?
a)
Glucose, ATP and oxygen
b)
Carbon dioxide, ATP, and water
c)
Lactic acid
d)
Carbon monoxide, water
21.
The expression "feel the burn" means that a person exercising is doing
a)
lactic acid fermentation
b)
alcoholic fermentation
c)
photosynthesis
d)
aerobic respiration
22.
In which way are photosynthesis and cellular respiration different?
a)
Cellular respiration stores ATP, while photosynthesis releases ATP.
b)
Cellular respiration produces oxygen, while photosynthesis uses oxygen.
c)
Photosynthesis releases energy, while cellular respiration stores energy.
d)
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
23.
Cellular Respiration's goal is to
a)
make water
b)
make ATP
c)
make glucose
d)
make oxygen
24.
What is needed in cellular respiration?
a)
glucose and oxygen
b)
glucose and carbon dioxide
c)
water and carbon dioxide
d)
oxygen and glucose
25.
______________ produces the most ATP.
a)
glycolysis
b)
electron transport chain
c)
anaerobic respiration
d)
krebs cycle
26.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
27.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
28.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
29.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
30.
Which of the following lists, in order, the phases of mitosis?
a)
interphase, metaphase, anaphase, telophase
b)
prophase, metaphase, anaphase, telophase
c)
prophase, metaphase, anaphase, interphase
d)
prophase, anaphase, metaphase, telophase
31.
How many daughter cells are produced in mitosis?
a)
1
b)
2
c)
4
d)
6
32.
In which phase does the cell spend most of it's life?
a)
Interphase
b)
Nuclear Division
c)
Telophase
d)
Mitosis
33.
Stem cells are
a)
cells that grow uncontrollably.
b)
undifferentiated and can develop into many types of cells.
c)
cells that never go through cell division.
d)
only found in embryos.
34.
What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?
a)
genetic engineering
b)
survival of the fittest
c)
differentiation
d)
selective breeding
35.
Cancer is
a)
a premature stop in the cell cycle.
b)
uncontrolled mitosis.
c)
programmed cell death.
36.
TT,tt,PP,pp,SS,ss are examples of alleles that are?
a)
homozygous
b)
heterozygous
c)
different
d)
homologous
37.
If "T" is the allele for tall and "t" is the allele for short, then Tt would produce?
a)
tall
b)
short
c)
medium
d)
not enough info
38.
the genetic code for the gene
a)
phenotype
b)
genotype
c)
homozygous
39.
when you have two different genes
a)
heterozygous
b)
dominant
c)
homozygous
40.
Sex cells are produced through the process of
a)
mitosis
b)
cytokinesis
c)
binary fission
d)
meiosis
41.
A GMO is
a)
A mutant animal
b)
An organism that is made up of lots of different organisms
c)
a genetically mutated option of the human genome
d)
an organism whose DNA has been purposely altered by human intervention
42.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
43.
The different forms of genes are known as
a)
environment
b)
probability
c)
traits
d)
alleles
44.
What would the ratio for genotypes be for this Punnett Square?
a)
2Bb:2bb
b)
2BB:2Bb
c)
1BB:2Bb:1bb
d)
4Bb
45.
What type of RNA carries the DNA message out of the nucleus to the ribosomes?
a)
mRNA
b)
tRNA
c)
RNA
d)
DNA
46.
What do we call the process of turning DNA into mRNA?
a)
Translation
b)
Transcription
c)
Replication
47.
When the RNA gets to the ribosomes, which molecule transfers to the mRNA to amino acids?
a)
DNA
b)
mRNA
c)
tRNA
d)
Replicated RNA
48.
Amino acids are the building blocks of...
a)
DNA
b)
RNA
c)
Atoms
d)
Proteins
49.
Which of the following best describes a DNA molecule?
a)
contains ribose
b)
made of amino acids
c)
contains Uracil
d)
double helix
50.
Where does Translation occur?
a)
Proteins
b)
Mitochondria
c)
Ribosomes
d)
Cytoplasm
51.
RNA contains the sugar
a)
ribose
b)
deoxyribose
c)
glucose
d)
lactose
52.
What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?
GAT-TAC-AGA-TTA-CAT?
a)
CTA-ATG-TCT-AAT-GTA
b)
GAU-UAG-UGA-UUA-GUT
c)
CUA-AUG-UCU-AAU-GUA
d)
CAT-ACA-TAC-ATA-TAG
53.
Which amino acid is made from the RNA codon UUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Tyrosine
54.
What has DNA?
a)
animals
b)
plants
c)
bacteria
d)
all of the above
55.
What is the correct sequence?
a)
RNA --> DNA --> Protein
b)
Protein --> RNA --> DNA
c)
DNA --> RNA --> Protein
d)
DNA --> Protein --> RNA
56.
Examples of a producer
a)
frog
b)
algae
c)
worm
d)
mouse
57.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
58.
An animal that gets energy from eating both plants and animals is a
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
59.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
60.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
61.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
62.
All food chains begin with a ____________.
a)
primary consumer
b)
secondary consumer
c)
producers
d)
scavengers
63.
What organism is responsible for nitrogen fixation?
a)
plants
b)
humans
c)
bacteria
d)
viruses
e)
mice
64.
What are the abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
water, plants, and birds
65.
Where does the energy that travels through an ecosystem originally come from?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
66.
Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem?
a)
The rabbit population may increase
b)
The rabbit population may decrease
c)
The rabbit population may increase first, then decrease
d)
The rabbit population will remain the same
67.
A population of mice lives in a barn community. A cat population has just joined the community. What will happen?
a)
Mouse and cat populations both go up?
b)
Mouse and cat populations both go down
c)
Mouse population goes down as cat population goes up
d)
Mouse population goes up as cat population goes down
68.
Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.
a)
commensalism
b)
parasitism
c)
mutualism
69.
Oxpeckers feed on the ticks found on rhinoceros. Both species benefit.
a)
commensalism
b)
parasitism
c)
mutualism
70.
Select all that apply.
You can help decrease your carbon footprint by...
a)
buying and eat locally-produced food
b)
lessening your amount of driving
c)
recycling
d)
decreasing your water and electricity usage
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