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Worksheetscell biology
Total questions: 47
Worksheet time: 37mins
which is NOT an example of an organelle?
mitochondrion
nucleus
heart
cell membrane
The part of the cell that contains the living substance of the cell, excluding the nucleus, is the
cytoplasm
nucleus
Some of these cells have structures like flagella and microvilla. All prokaryotes are single-celled organisms. Compare prokaryotes and eukaryotes. Select the characteristics that only apply to prokaryotes.
These cells have cell walls made of cellulose
These cells have DNA in a region called the nucleoid
The spherical object within a cell that controls its activity is the
mitochondria
ribosome
nucleus
none of the above
When viewing a cork through his homemade microscope, Robert Hook discovered
small compartments that he called membrane
small compartments that he called nucleus
The main site for synthesis of lipids
Lysosomes
Golgi apparatus
RER
SER
All prokaryotes are single-celled organisms. Compare prokaryotes and eukaryotes. Select the characteristics that only apply to prokaryotes.
These cells have DNA in a region called the nucleoid
Some of these cells have structures like flagella and microvilla
These cells have cell walls made of polypeptides and polysaccharides
These cells have cell walls made of cellulose
These cells have DNA contained in a nucleus
The part of the cell that contains the living substance of the cell, excluding the nucleus, is the _____.
nucleus
cell membrane
cytoplasm
cell wall
Schleiden and Schwann believed _____.
that organisms were the basic unit of life
that both cells and organisms were basic units of life
that the questions of the basic unit of life were too abstract to answer
none of the above
When viewing a cork through his homemade microscope, Robert Hook discovered small compartments that he called _____.
boxes
cells
prokaryotes
eukaryotes
The main site for synthesis of lipids
RER
SER
Golgi apparatus
Lysosomes
The term Cell was coined by
Robert Hooke
Robert Brown
JE Purkinje
AV Leeuwenhoek
collects, processes, and packages proteins for the cell
mitochondria
gogli apparatus
smooth ER
rough ER
This is the powerhouse of a cell
Cytoplasm
Rough ER
Ribosome
Mitochondria
What is DNA?
Deoxyrebonucliec Acid
Deoxirybonucleic Acid
Deoxyribonucleic Acid
Deoxyriebonucleic Acid
Given the chemical formula for glucose (C6H12O6), what type of molecule is it?
pritein
carbohydrate
nucleic acid
What molecule will your body generally use first for energy?
carbohydrates
lipids
amino acids
nucleic acids
How do roots respond to gravity (geotropism)?
a) Positive gravitropism (grow against gravity)
b) Negative gravitropism (grow in the direction of gravity)
c) They don't respond to gravity
d) They grow sideways
What happens to the bottom side of a horizontally placed root regarding auxin concentration?
a) It contains less auxin and grows more
b) It contains more auxin and grows more
c) It contains more auxin and grows less
d) It contains less auxin and doesn't grow
What happens to stem cells in a plant during positive phototropism?
a) Both sides of the stem grow equally
b) The stem bends towards the light
c) The shaded side of the stem grows longer
d) The stem doesn't grow towards the light
What is the family of plant hormones that includes IAA (Indole acetic acid)?
a) Cytokinins
b) Gibberellins
c) Auxins
d) Ethylene
What is the function of the permanent vacuole in plant cells?
a) Storage of genetic material
b) Enzyme synthesis
c) Keeping the cell swollen
d) Protein synthesis
Which organelle in animal cells is responsible for most energy release during respiration?
a) Nucleus
b) Cell membrane
c) Mitochondria
d) Ribosomes
What is the primary component of plant cell walls?
a) Protein
b) Lipid
c) Cellulose
d) Starch
How does the stem respond to a positive phototropism stimulus?
a) The stem bends towards the light
b) Both sides of the stem grow equally
c) The shaded side of the stem grows longer
d) The stem doesn't respond to light
Which of the following is NOT a type of tropism?
a) Phototropism
b) Gravitropism
c) Geotropism
d) Thermotropism
What is the effect of unequal distribution of auxin in plant cells?
a) It causes the plant to bend towards the light
b) It has no effect on plant growth
c) It can result in unequal growth rates in stems and roots
d) It causes root cells to grow more
In which part of the plant are auxins primarily produced?
a) Leaves
b) Roots
c) Apical meristems
d) Chloroplasts
Which organelle contains the enzymes needed for photosynthesis in plant cells?
a) Mitochondria
b) Ribosomes
c) Chloroplast
d) Nucleus
Which statement is false about eukaryotic cells?
They can have mitochondria, chloroplasts and vacuoles.
They have a nucleus
They are much smaller than prokaryotic cells.
Animal and plant cells are examples of eukaryotic cells.
What is meant by a prokaryotic cell?
A cell without a nucleus
A cell with a nucleus
A cell without a cell membrane
A cell with two nuclei.
What is the equation to work out overall magnification from eyepiece magnification and objective lens magnification?
Overall= Objective x Eyepiece
Overall= Objective/Eyepiece
Overall= Eyepiece/Objective
If an image is blurry under a microscope, how do you make it clearer?
Change the objective lens to a higher magnification.
Turn on the light or adjust the mirror.
Turn the focusing wheel until the image is focused.
Use a different eyepiece lens.
What is the name of the process where particles move from a high concentration to a low concentration (down a concentration gradient)?
Diffusion
Osmosis
Active Transport
Which organelles do you find in a plant cell but not an animal cell?
Cell Membrane
Vacuole
Cytoplasm
Chloroplasts
Cell Wall
What is the function of the cytoplasm?
To control what enters and exits a cell.
It is where chemical reactions occur.
To control the activities of a cell.
It is where photosynthesis happens.
Which organelle is where protein synthesis happens?
Chloroplast
Mitochondria
Ribosome
Nucleus
Which organelle is where aerobic respiration occurs?
Mitochondria
Chloroplast
Cytoplasm
Ribosome
Which organelle controls the actitivies of the cell and contains DNA?
Cell Membrane
Cytoplasm
Nucleus
Mitochondria
