The cell and its organelles Flashcards
Which of the following is not a property of life?
Reproduction
Multicellular organization
Growth and development
Heredity and evolution
Energy and metabolism
Multicellular organization
True or False: The central dogma means that proteins do not play a role during the synthesis of nucleic acids.
False
True or false: Viruses are living organisms.
False
Which of the following statements is true?
a. All living organisms are multicellular
b. All living organisms can reproduce sexually
c. Cyanobacteria are multicellular organisms
d. Multicellularity evolved multiple times independently
e. Some bacteria are multicellular
d. Multicellularity evolved multiple times independently
The central dogma states that information can go…
a. only from proteins to proteins
b. only from RNA to proteins
c. only from proteins to DNA
d. only from DNA to protein
e. from nucleic acid to nucleic acid or from nucleic acid to protein
from nucleic acid to nucleic acid or from nucleic acid to protein
Why are ribosomal protein sequences used to determine the base of the tree of life? (You can pick multiple answers)
a. Because they evolve slowly
b. Because they are highly conserved
c. Because they do not differ between bacteria, archaea and eukaryotes
d. Because they have important cellular functions
e. Because they do not mutate
a. Because they evolve slowly
b. Because they are highly conserved
d. Because they have important cellular functions
What is the average size of a typical bacteria cell?
1µm-5µm
Which of the following statements is true?
a. A small cell has a higher surface-to-volume ratio than a large cell
b. A large cell has a higher surface-to-volume ratio than a small cell
a. A small cell has a higher surface-to-volume ratio than a large cell
Associate the following characteristics to the organism or cell type they can be found in:
a. Peptidoglycan
b. Microvilli
c. Heterocyst
B. Escherichia coli
D. Enterocyte
E. Cyanobacteria
What following decreases the surface-to-volume ratio?
Larger and more spherical bodies
What organelle cannot be found in a prokaryotic cell?
Mitochondria
What organelle cannot be found in an animal cell?
Chloroplast
Which of the following cannot be found in a plant cell?
a. Mitochondria
b. Nucleoid
c. Chloroplast
d. Cell wall
e. Vacuole
b. Nucleoid
Which of the following statement is correct?
In eukaryotes, the cytoplasm is essentially the cytosol
In both prokaryotes and eukaryotes, the cytoplasm includes the cytosol
In prokaryotes, the nucleus is part of the cytosol
In eukaryotes, the cytoplasm includes only the cytosol and the nucleus
In eukaryotes, the cytosol is made of the cytoplasm and the organelles
In both prokaryotes and eukaryotes, the cytoplasm includes the cytosol
What is the origin of the double membrane of the nuclear envelope?
The infolding of the plasma membrane of a prokaryotic cell before endosymbiosis occurred
