nerve cells in a chefs hand feel the heat of a pan and causes him to drop it; what is this an example of?

the ability to respond to a stimulus

what evidence would prevent scientist from classifying viruses as living organisms?

viruses require a host cell to reproduce

what can be inferred by looking at the two graphs?

the enzyme works best at a pH of 6 and a temp of 20

which statement is a tenet of the cell theory?

cells are only made form preexisting cells

what is the correct order from the lowest to the highest organization level?

cell -> heart tissue -> heart -> circulatory system

the image shows the viral cycle of a bacteriophage. what is occurring in the section of the diagram labeled 5?

the virus is causing the bacterial cell to burst and release viral particle

which statement describes the differences between prokaryotic and eukaryotic cells?

eukaryotic cells have membrane-bound organelles

the picture shows a mitochondrion. what would happen if the number of folds were decreased

the amount of ATP produced would decrease

what is the best description for the area labeled R?

many small vacuoles spread throughout the cell for storage

which correctly matches the scientists with their contributions?

W: Hooke / X: Virchow / Y: Schwann / Z: Schleiden

the image shows the amount of structures in an unknown cell. what can can be concluded about the cell?

since the cell has mitochondria and DNA, it must be a eukaryotic cell

which statement best explains why viruses are considered to be nonliving?

they are unable to reproduce independently

which substances help the body store energy for a longer duration of time?

lipids. they have more carbon-hydrogen bonds

Robert Hooke observed a cork slice and saw structures he named cells. what part of the cell theory came from this?

all living organisms are composed of one or more cells

the image shows a microbe that causes influenza. which other characteristic could be included in the bulleted list?

considered a non-living particle

what happens when an organism has more carbohydrates than needed to meet its energy requirements?

the extra energy is converted to fat and stored until needed

viruses take over the host cell to grow and develop. Why do they depend on host cells for this?

they do not have the organelles necessary for reproduction

(read question in image)

they lack enzymes necessary to carry out metabolic reactions

the image shows a type of virus called a bacteriophage. why is a bacteriophage unable to reproduce outside a host cell?

it lacks major cell organelles such as mitochondria and ribosomes

what contribution did Robert Hooke made to biology based on his observations. (he observed them in cork tissues)

he named the small structures cells

what statement about enzymes is true?

Enzymes have an active site that has a complementary shape to a substrate.

The HIV virus needs a host to carry out metabolic activities. Which evidence supports that the HIV virus is nonliving?

it lacks food-producing or energy-producing cell organelles

what charcteristic of life is this an example of?

living organisms grow and develop over time

Robert Hooke observed cork slices under a microscope. Which tenet of the cell theory supports his obsevation?

all living things are made of cells

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Biology 1st 9wks Exam

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Answers

1
phototrophic flowers grow toward the sun. which characterisic of life do phototropic flowers demonstrate?
ability to pass traits to offspring
ability to respond to stimuli
ability to reproduce
ability to maintain homeostasis
2
nerve cells in a chefs hand feel the heat of a pan and causes him to drop it; what is this an example of?
the ability for cells to contain DNA
the ability for evolutionary change
the ability to respond to a stimulus
the ability to grow and develop
3
what evidence would prevent scientist from classifying viruses as living organisms?
some viruses use RNA (not DNA) as genetic material
viruses require a host cell to reproduce
some viruses do not contain proteins or carbohydrates
viruses reproduce asexually
4
what can be inferred by looking at the two graphs?
the enzyme works only at a pH of 6 and a temp of 20
the enzyme is completely used up at a pH of 9 and a temp of 30
the enzyme becomes inactive at a pH of 7 and a temp of 25
the enzyme works best at a pH of 6 and a temp of 20
5
how would all the labeled structures working together to preform a function be classified?
organ
cell
system
tissue
6
which structure is a lipid? (match answer with answer in image)
3
1
2
4
7
which statement is a tenet of the cell theory?
all plant and animal cells are identical
cells are only alive if they contain a nucleus
cells are only made form preexisting cells
all cells are too small to be seen without a microscope
8
what is the correct order from the lowest to the highest organization level?
circulatory system -> cell -> heart -> heart tissue
cell -> heart tissue -> heart -> circulatory system
heart -> cell-> circulatory system -> heart tissue
cell -> circulatory system -> heart -> heart tissue
9
the image shows the viral cycle of a bacteriophage. what is occurring in the section of the diagram labeled 5?
the virus is using the host cell’s machinery to copy its genetic material
the virus is infecting the bacterial cell by entering and injecting its DNA
the virus is assembling its parts to form an infectious agent
the virus is causing the bacterial cell to burst and release viral particle
10
the image shows an animal cell. which structures in this cell are also found in prokaryotic cells?
2, 5, and 8
1, 5, and 6
3, 6, and 10
1, 2, and 8
11
which statement describes the differences between prokaryotic and eukaryotic cells?
eukaryotic cells are less complex with fewer organelles
prokaryotic cells are larger, more complex, and mobile
prokaryotic cells have circular DNA inside a nucleus
eukaryotic cells have membrane-bound organelles
12
the diagram shows an animal cell. which labeled part contains DNA that codes for proteins?
P
S
R
Q
13
which term best decribes the smallest funtional unit of life?
cell
nucleus
atom
egg
14
what organic molecule has phosphate groups, sugar molecules, and nitrogenous based?
lipid
nucleic acids
carbohydrate
protein
15
the picture shows a mitochondrion. what would happen if the number of folds were decreased
the amount of glucose produced would decrease
the amount of ATP produced would increase
the amount of ATP produced would decrease
the amount of glucose produced would increase
16
which protein acts as a catalyst to speed up reactions?
cellulose
enzymes
hormone
steroid
17
after watering a table and a plant and keeping them in the sun, the plant grows; what is this an example of?
ability to reproduce
ability to breathe
ability to move
ability to grow
18
what is the best description for the area labeled R?
many small vacuoles spread throughout the cell for storage
mitochondria convert energy in glucose into a more usable component
chloroplasts contain pigments for the conversion of sunlight to energy
genetic information as chromosomes is held in the nucleus
19
which correctly matches the scientists with their contributions?
W: Schleiden / X: Schwann / Y: Hooke / Z: Virchow
W: Vrichow / X: Hooke / Y: Schleiden / Z: Schwann
W: Hooke / X: Virchow / Y: Schwann / Z: Schleiden
W: Schwann / X: Schleiden / Y: Virchow / Z: Hooke
20
which represents the lowest level of organiziation? (match answer with answer in image)
2
4
3
1
21
A student lists examples of tissues in the body. Which of these should not be included in the list.
small intestine
blood
cartilage
heart muscles
22
why are viruses unable to preform any metabolic functions independently?
they are impermeable to nutrients and water
they are found only inside other organisms
they lack genetic material
they lack cell organelles
23
which cell organelle is correctly aligned with its function?
mitochondrion- stores wastes
chloroplast- controls cell function
cytoplasm- digests old parts
ribosome- produces proteins
24
the image shows the amount of structures in an unknown cell. what can can be concluded about the cell?
since the cell has a cell membrane and DNA, it cannot be an animal cell
since the cell has mitochondria and DNA, it must be a eukaryotic cell
since the cell lacks chloroplasts, it cannot be a prokaryotic cell
since the cell lacks a cell wall, it must be a plant cell
25
based on the list, which characteristic explains why viruses are unable to reproduce on their own?
characteristic 1
characteristic 4
characteristic 2
characteristic 3
26
which statement best explains why viruses are considered to be nonliving?
they have different types of proteins
they are only able to be viewed under a microscope
they are unable to reproduce independently
they lack genetic material
27
according to the table, which cell is a plant cell?
cell W
cell X
cell Y
cell Z
28
what level of organization is formed when similar cells specialized to preform a specific function come together?
organsim
system
tissue
organ
29
which substances help the body store energy for a longer duration of time?
carbs. they are large and complex molecules
lipids. they have more carbon-hydrogen bonds
vitamins. they take longer to digest
proteins. they make up most of the body parts
30
what other organelle would be present in large quantities of muscle cells?
mitochondria
chloroplasts
vacuoles
ribosomes
31
plant grows towards the sun; what charcteristic of life is this an example of?
ability to pass traits to offspring
abilty to reproduce
ability to maintain homeostasis
ability to respond to stimuli
32
Robert Hooke observed a cork slice and saw structures he named cells. what part of the cell theory came from this?
all cells arise from preexisting
all organisms are too small to see individual cells
all living organisms are composed of one or more cells
all energy flow occurs within cells
33
how is the composition of an organ best described?
one type of cell
similar types of cells
one type of tissue
different types of tissues
34
the image shows a microbe that causes influenza. which other characteristic could be included in the bulleted list?
larger than a prokaryotic cell
considered a non-living particle
contains mitochondria for energy production
reproduces slowly outside of the host’s body
35
what happens when an organism has more carbohydrates than needed to meet its energy requirements?
the organism begins to break down proteins
the organism begins to break down fats
the extra energy is converted to fat and stored until needed
the extra energy is converted to proteins and stored
36
what level of organization does the brain represent.
tissue
organ
cell
system
37
viruses take over the host cell to grow and develop. Why do they depend on host cells for this?
they do not have any genetic material
they can only reproduce by creating a zygote
viruses can only replicate through meiosis
they do not have the organelles necessary for reproduction
38
why type of macromolecules are enzymes?
nucleic acids
lipids
proteins
carbohydrates
39
(read question in image)
they lack enzymes necessary to carry out metabolic reactions
they lack nucleic acids necessary to pass on traits
they lack the ability to enter host cells
they lack protection around their genetic materials
40
the image shows a type of virus called a bacteriophage. why is a bacteriophage unable to reproduce outside a host cell?
it lacks major cell organelles such as mitochondria and ribosomes
a bacteriophage lacks the RNA genome necessary for reproduction
a bacteriophage has a highly complicated DNA genome
a bacteriophage is a complex, unicellular organism
41
over 15 days plant size increases and pebble size stays the same; what charcteristic of life is this an example of?
ability to grow
ability to reproduce
ability to move
ability to respond to stimuli
42
what are the two organelles that work together to produce enzymes and proteins for eukaryotic cells?
mitochondia and nucleus
plasma membrane and vacuoles
mitochondia and chloroplasts
nucleus and ribosomes
43
what contribution did Robert Hooke made to biology based on his observations. (he observed them in cork tissues)
he stated that all cells come from preexisting cells
he named the structures organelles
he named the small structures cells
he stated that every living thing is made up of more than one cell
44
which organsism could be considered as nonliving becasue it does not fit the cell theory?
a prokaryote
a virus
a multicellular algae
a unicellular algae
45
what statement about enzymes is true?
Enzymes are not affected by biotic factors in the environment.
Enzymes have an active site that has a complementary shape to a substrate.
Enzymes are not affected by abiotic factors in the environment.
Enzymes have an active site that binds to a variety of different substrates
46
The HIV virus needs a host to carry out metabolic activities. Which evidence supports that the HIV virus is nonliving?
it lacks the genetic material needed to create more viruses
it has complicated DNA
it has complicated structures
it lacks food-producing or energy-producing cell organelles
47
what does this conclude?
viruses lack a nucleus
viruses are small in size
viruses are nonliving
viruses lack genetic material
48
which image represents a prokaryotic cell? (match answer with answer in image)
3
2
4
1
49
what charcteristic of life is this an example of?
living organisms pass identical traits on to offspring.
living organisms grow and develop over time
living organisms consume oxygen to breathe
living organisms are all made of one cell
50
Robert Hooke observed cork slices under a microscope. Which tenet of the cell theory supports his obsevation?
all living things are made of cells
Cells in an organsims are different
cells arise from preexsiting cells
all cells contain DNA
51
which substrate matches the enzyme? (match answer with answer in image)
2
1
4
3
52
which structure represents the highest level of organization in an organism?
red blood cell
rough endoplasmic reticulum
heart tissue
large intestine
53
what is the highest level of organization represented by the kidney? (kidney is shown in picture)
organ
cell
system
tissue
54
which structure best distinguishes this cell as being eukaryotic?
J
K
L
M
55
what cell structures are responsible for providing the energy needed for cell activities?
mitochondria
nuclei
vacuoles
ribosomes
56
in which organelle do the chemical reactions of photosynthesis occur? (match answer with answer in image)
4
3
1
2
57
which table correctly pairs each organic molecule with its function? (match answer with answer in image)
2
1
4
3
58
which characteristic supports the classification of a virus as nonliving?
viruses are too small to be seen with the naked eye
Viruses can only multiply within a living cell
viruses will typically die if their hosts die
viruses lack membrane-bound organelles
59
a spider and pebbles are given food and water each day: what charcteristic of life is this an example of?
ability to reproduce
ability to pass traits to offspring
ability to use food for energy
ability to move
60
what is the primary function of the organelle shown in the image?
production of large and small ribosomal subunits
repackaging proteins for export from the cell
long-term storage of molecules in the cell
attaching amino acids to tRNA molecules
61
which feature of viruses is the most similar to a feature of living things?
viruses have a way to reproduce new viruses
viruses require host cells in order to be active
viruses have a basic structure that is not based on cells
viruses do not grow or develop.
62
which organism is prokaryotic? (match answer with answer in image)
3 (fungi)
4 (plant)
2 (protist)
1 (bacterium)
63
which statement explains how enzymes work as a catalyst to increase the speed of the reaction?
lowers the activation energy
decreases the concentration of the substrate
increases the temperature
changes the structure of the substrate
64
based on the table, which organism is most likely prokaryotic?
organism 2
organism 3
organism 4
organism 1
65
what is the most complex level of organization in an organism?
tissue
organ
cell
system
66
what relationship exists between amino acids and proteins?
amino acids are larger molecules than proteins
amino acids form when proteins bond together
proteins are made up of amino acids
proteins and amino acids bind to form lipids
67
to which part of the cell theory did Matthias Schleiden contribute? (he found that all plants are made of cells)
plants have different cell strucutres
all cells arise from preexsiting cells
plants are composed of only one type of cell
all organisms are made up of cells
68
the table shows observations made on different cells. what conclusions can be supported by the observations?
J is an animal cell, K is eukaryotic, L is a plant cell, M is prokaryotic
J is eukaryotic, K is prokaryotic, L is an animal cell, M is a plant cell
J is an animal cell, K is prokaryotic, L eukaryotic, M is a plant cell
J is prokaryotic, K is an animal cell, L is a plant cell, M is prokaryotic
69
the image shows a virus and bacterium. how are they similar?
they have organelles for making proteins
they have flagella for locomotion
they have DNA not enclosed by a membrane
they have outer, protective cell membranes
70
which characteristic do viruses share with bacteria?
viruses contain genetic material
viruses grow and develop
viruses metabolize food for energy
viruses are made of cells
71
which component of the cell theory was contributed in part by Robert Virchow?
all living organisms divide and reproduce
all cells originate from preexisting cells
all living organisms are made of many cells
all cells require oxygen to grow
72
image shows a virus. which statement could scientists use to prove that viruses are nonliving.
lack methods of autotrophic nutrition and will be able to produce energy
lack materials to build new particles and rely on host cell to provide them
lack layers of protection and will be destroyed by larger molecules
they lack genetic material an have no way to pass on traits
73
What is the composition of an organ in a multicellular organism?
a group of organelles
a group of cells
a group of tissues
a group of organisms
74
molecule Y is a member of which class of biological macromolecules?
proteins
carbohydrates
lipids
nucleic acids
75
what causes a duck’s feathers to repel water?
lipids called oils form a coating on the feathers
lipids called enzymes forms a coating on the feathers
proteins called enzymes formed a coating on the feathers
proteins called oils forms a coating on he feathers
76
based on the image, which term best completes the concept map?
bacteria
animal
virus
plant
77
what statement is true about nucleic acids.
they are composed of sugar, glycerol, and nitrogen bases
they are only found in the nucleus of cells
they store and transmit generic information
they serve as the subunits of proteins
78
which organelle is paired properly with its function?
lysosome: transport
ribosome: synthesize lipids
ribosome: synthesize proteins
lysosome: reproduction
79
based on the graphs, what is the best temperature and pH for the enzyme activity?
37 degrees and a pH of 10
59 degrees and a pH of 8
37 degrees and a pH of 8
59 degrees and a pH of 10
80
for the process of photosynthesis, the arrow labled A would most likely be ponting to what organelle?
the mitochondria
the nucleus
the cell wall
the chloroplast

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