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questions and options
Biology questions
What is the role of the mitochondria?
A: Powerhouse of the cell
B: Protein production
C: Protein modification
D: Site of aerobic respiration
Which substances will be able to diffuse through a phospholipid bilayer?
A: oxygen and carbon dioxide
B: glucose
C: all of the above
D: none of the options
Eukaryotic cells make up …
A: Plants
B: People
C: Both
D: Neither
Which of the following means “out” ?
A: Exo
B: Endo
C: Both
D: Neither
Pinocytosis can be described as …
A) a cell “eating”
B) a cell “drinking”
C) a cell excreting
D) a cell pinning stuff up
rRNA…
A) does not exist
B) is respiratory RNA
C) is rough RNA
D) is ribosomal RNA
The phosphate head of a phospholipid is
A) non-existent
B) nonpolar and hydrophilic
C) polar and hydrophilic
D) nonpolar and hydrophobic
tRNA is
A) transport RNA
B) transfer RNA
C) t-rex RNA
D) transplant RNA
The function of cholesterol in plasma membranes is:
A) to clog your arteries
B) to maintain the fluidity of the plasma membrane
C) to allow simple diffusion
D) to block movement of sugars
If a cell is isotonic to its surroundings
A) no movement will occur across the plasma membrane
B) the concentration of everything in the cell is equal to the extracellular concentrations
C) the amount of water in the cell will stay fairly constant
D) the cell will become turgid
In a hypotonic cell the intracellular concentration of water is
A) high compared to the cell’s surroundings
B) low compared to the cell’s surroundings
C) equal to the cell’s surroundings
D) no one can say for sure, not even Vox or PF
If you have to guess in bio, pick an answer that:
A) is spelt incorrectly
B) doesn’t contain absolute statements such as “always”
C) feels right
D) has absolute statements such as “never”
Experiments should:
A) have controlled variables
B) occur only once
C) be written in the first-person
D) always support the hypothesis
Eukaryotic cells:
A) Are always nucleated (always have a nucleus)
B) Are usually smaller than prokaryotic cells
C) Are unchanging
D) Change in response to stimuli
If information could passively move from a textbook (high concentration) to a students brain (low concentration) across a semi-permeable membrane, this would be an example of:
A) osmosis
B) active transport
C) sleeping
D) diffusion
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answers to questions that tricked people
VCAA does not allow powerhouse of the cell as the proper option - people have lost points for this in the past
Red blood cells (RBCs) are NOT nucleated
In a hypotonic cell concentration of solutes is low and concentration of water is high
In an isotonic cell there is movement of water across the membrane, just no NET movement
osmosis is diffusion of water - you would not describe the movement of any other substance as being osmosis
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Erutepa only about 50 under
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