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WorksheetsIB - Cell Biology
Total questions: 35
Worksheet time: 33mins
Which of the following is/are features of living organisms?
metabolism
ventilation
homeostasis
growth
Which of the following is/are part of The Cell Theory?
All living things are made up of one or more cells
All cells come from pre-existing cells by mitosis
Cells are the smallest units of life
All cells contain mitochondria
Skeletal muscle and aseptate fungi are exceptions to the cell theory. Why is this?
Their cells lack a nucleus
Their cells contain multiple nuclei
Their cells lack mitochondria
Their cells lack ribosomes
Which of the following cell organelles has or have a double membrane?
Nucleus
Chloroplast
Rough endoplasmic reticulum
Mitochondrion
Which of the following is/are features of all prokaryotic cells?
A nucleus
A capsule
A cell wall
80S ribosomes
By what method do prokaryotic cells divide?
mitosis
meiosis
binary fission
fertilisation
What is the correct order in which proteins are made and exported out of the cell?
golgi apparatus --> rough er --> vesicle --> cell membrane
vesicle --> rough er --> golgi apparatus --> cell membrane
rough er --> golgi apparatus --> vesicle --> cell membrane
vesicle --> golgi apparatus --> rough er --> cell membrane
Which of the following shows correct differences between prokaryotic and eukaryotic cells?
A
B
C
D
Which of the following applies/apply only to prokaryotic cells and not to eukaryotic cells?
have circular DNA
do not have a nucleus
have 70S ribosomes
have DNA not associated with histone proteins
Which of the following is/are part of the Endosymbiotic Theory?
An aerobic host cell engulfed an anaerobic bacterium
Mitochondria evolved from aerobic bacteria
Plant cells evolved from animal cells
Chloroplasts evolved from photosynthetic bacteria
Which of the following support(s) the Endosymbiotic Theory?
Mitochondria and chloroplasts have circular DNA
Mitochondria and chloroplasts have 80S ribosomes
Mitochondria and chloroplasts have double membranes
Mitochondria and chloroplasts divide and grow by binary fission
If a mitochondrion has a length of 5 µm and a student’s drawing of the mitochondrion is 10 mm, what is the magnification of the drawing?
×0.0005
x0.5
x200
x2000
Which of the following is/are true of stem cells?
they are specialised cells
they are undifferentiated cells
they can be taken from embryos after therapeutic cloning for medical use
they are used to clone mammals
What property, or properties, of stem cells make them useful in treating Stargardt's Disease?
They are self-replicating
They can be made to differentiate into nerve cells that can produce dopamine
They are unipotent
They can absorb light
How does the surface area to volume ratio change with an increase in cell size?
A
B
C
D
In which stage of the cell cycle does a cell's surface area : volume decrease?
prophase
anaphase
metaphase
interphase
What is a difference between a cell in the G1 phase and a cell in the G2 phase of the cell cycle?
A cell in the G2 phase would be smaller than a cell in the G1 phase
A cell in the G2 phase would have more mitochondria than a cell in the G1 phase
A cell in the G1 phase would have more DNA in its chromosomes than a cell in the G2 phase
D. DNA replication occurs in the G1 phase but not in the G2 phase
During which phase of the cell cycle do chromosomes duplicate?
G1
S
G2
Mitosis
Which one of the following does not occur during interphase?
Replication
Translation
An increase in the number of mitochondria
Cytokinesis
What happens during the G2 stage of interphase?
Homologous chromosomes pair
Synthesis of proteins
Homologous chromosomes separate
Replication of DNA
Which one of the following explains how cells in a multicellular organism differentiate?
Different cells do not have some of the genes.
Different cells contain a different set of chromosomes.
They all have a different genetic composition.
They express some of their genes but not others.
Which of the following take(s) place during either interphase or mitosis in animal cells?
I. Re-formation of nuclear membranes
II. Pairing of homologous chromosomes
III. DNA replication
I only
I and II only
II and III only
I and III only
What is the sequence of stages during the cell cycle?
G1 → S → G2 → mitosis → cytokinesis
mitosis → G1 → G2 → cytokinesis → S
G1 → G2 → S → mitosis → cytokinesis
G1 → G2 → mitosis → cytokinesis → S
The graph below represents the amount of DNA during the cell cycle.
Which stage of the graph represents metaphase?
A
B
C
D
Which organelles have a transport function?
Ribosome and Golgi apparatus
Golgi apparatus and rough endoplasmic reticulum
Mitochondrion and rough endoplasmic reticulum
Mitochondrion and ribosome
Which row describes the functions of the following organelles?
A
B
C
D
Which one of the following is produced as a result of mitosis?
Two cells, each containing half the number of chromosomes of the original cell
Two cells, each containing the same number of chromosomes as the original cell
Four cells, each containing the same number of chromosomes as the original cell
Four cells, each containing half the number of chromosomes of the original cell
In viewing an electron micrograph of a cell, ribosomes, pili and a single circular chromosome are observed.
What is one other structure likely to be present?
The rough endoplasmic reticulum
Mitochondria
A nuclear membrane
A plasmid
How is/are tumour cells different from healthy cells?
They contain proto-oncogenes
They contain oncogenes
They have a higher mitotic index
They undergo mitosis
Which one of the following ensures that mitosis produces two genetically identical cells?
One of each of the 23 types of chromosome is pulled to each pole of the cell by spindle microtubules.
DNA is replicated in prophase.
Identical chromatids are pulled to opposite poles by spindle microtubules.
DNA molecules are moved to the equator of the cell where they are replicated.
Which one statement is characteristic of tumours?
They occur only in certain animal cells.
They result from controlled cell division in only some organs.
They result from uncontrolled cell division and can occur in any organ.
They result from partially controlled transcription.
If a cell plate is beginning to form and nuclear membranes are re-forming at opposite ends of a cell, what kind of cell is this?
An animal cell in prophase
A plant cell in prophase
An animal cell in telophase
A plant cell in telophase
In which stage of mitosis do chromosomes condense and become shorter?
prophase
metaphase
anaphase
telophase
In which stage of mitosis do chromosomes attach to spindle fibres by their centromere?
prophase
metaphase
anaphase
telophase
Colchicine is a chemical substance that prevents the formation of spindle microtubules.
What event of mitosis would be prevented, if dividing cells were treated with colchicine?
Breaking down of the nuclear membrane
Replication of DNA
Separation of genetically identical chromosomes (chromatids)
Uncoiling of chromosomes
