The salt concentration inside this blood cell is 1.8%. What would happen here, if the medium drops to 0.2%?

the cell will swell and possibly burst

Which is evidence for the endosymbiotic theory?

chloroplasts contain 70S ribosomes

The salt concentration inside this paramecium is 1.8%. What would it do if the medium drops to 0.2%?

the contractile vacuole will expel more water

How does mitosis produce two genetically identical nuclei?

by separating sister chromatids

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IB Biology Topic 1: Cells (IB style MCQ)

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Questions 20

Answers

1
The salt concentration inside this blood cell is 1.8%. What would happen here, if the medium drops to 0.2%?
the membrane will become more permeable to salt
the cell will swell and possibly burst
the contractile vacuole will expel more water
it will lose salt to the medium
2
Which red blood cell is in the solution with the highest salt concentration?
solution 1
Original solution
solution 2
solution 3
3
Finally, true or false? You can do this!!
True
False
4
How many chromosomes are there in anaphase if the diploid number of the cell is 10?
40
20
80
10
5
Pasteur's experiments provided evidence against which theory?
conservative replication of DNA
evolution
endosymbiosis
spontaneous generation
6
Why do phospholipids spontaneously form a lipid bilayer?
they are hydrophobic
they are hydrophilic
they are amphipathic
they are saturated
7
After mitosis, a cell with 10 chromosomes will have formed two daughter cells with how many chromosomes?
20
40
80
10
8
How are striated muscle fibers different from the cells shown in these micrographs?
they have membrane-bound organelles
they contain multiple nuclei
they contain mitochondria
they have a nucleoid region
9
Which structure is an exception to the cell theory?
the artificial synthesis of urea
a single-celled alga carrying our the functions of life
a multicellular organism with specialized cells
striated muscle fibers
10
What is true about cholesterol?
it impacts membrane fluidity
hydrophilic, found inside the membrane
it is a carbohydrate
hydrophobic, located on the outside of the membrane
11
Which is evidence for the endosymbiotic theory?
organic molecules can be synthesized abiotically
RNA is self-replicating
protein synthesis occurs in the cytoplasm
chloroplasts contain 70S ribosomes
12
DNA replication occurs in...
G phase of interphase
S phase of interphase
early prophase
late prophase
13
What structures can only be found in prokaryotic cells?
flagella
pili
cell walls
ribosomes
14
The salt concentration inside this paramecium is 1.8%. What would it do if the medium drops to 0.2%?
the membrane will become more permeable to salt
the contractile vacuole will expel more water
the cell will swell and possibly burst
it will lose salt to the medium
15
Which state of mitosis do you see here?
anaphase
metaphase
telophase
prophase
16
What do mitochondria and chloroplasts have in common?
They are both found in tulips
They both contain grana
they both occur in ALL eukaryotic cells
Both are found in a paramecium
17
What does this virus have in common with a living cell?
genetic material
reproduction by binary fission
70S ribosomes
anaerobic respiration
18
How does mitosis produce two genetically identical nuclei?
by separating homologous chromosomes
by separating sister chromatids
by dividing the nuclear membrane carefully
by dividing the cytoplasm equally
19
Why are stem cells useful for therapeutic uses?
less excretion
don't divide as often
less differentiation
slower metabolism
20
Diffusion is ALWAYS passive
True
False

IB Biology Topic 1: Cells (IB style MCQ) Flashcards | StudBud