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English · Question 131
Choose the standard second-conditional form: "If I had more free time, I ___ a study group."
will join
would join
had join
am join
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Correct answer: B
would join
For an imagined present situation, use if plus past simple and would plus the base verb.
English · Question 132
Which sentence uses the standard zero-conditional pattern?
If the alarm will sound, we would left.
If the alarm sounding, we leaves.
If the alarm sounded, we will leaving.
If the alarm sounds, we leave the building.
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Correct answer: D
If the alarm sounds, we leave the building.
The zero conditional uses present simple in both clauses to express a general rule or habitual result.
English · Question 133
In "She was reluctant to speak", what does reluctant mean?
Unable to hear
Certain of success
Unwilling or hesitant
Eager and enthusiastic
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Correct answer: C
Unwilling or hesitant
Reluctant describes a lack of willingness or hesitation about doing something.
English · Question 134
Which word best replaces woeful in "He spoke in a woeful voice"?
Indifferent
Joyful
Sorrowful
Confident
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Correct answer: C
Sorrowful
In this context, woeful means expressing sadness.
English · Question 135
What does "a bird in the hand is worth two in the bush" advise?
Risk everything for any promise.
Value a certain benefit over an uncertain larger gain.
Always choose two small rewards.
Avoid every new opportunity.
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Correct answer: B
Value a certain benefit over an uncertain larger gain.
The proverb favours keeping a benefit already secured over risking it for a larger uncertain reward.
Biology · Question 136
Which process describes the net movement of water through a selectively permeable membrane?
Exocytosis
Translation
Replication
Osmosis
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Correct answer: D
Osmosis
Osmosis is water movement across a selectively permeable membrane.
Biology · Question 137
A red blood cell is placed in a hypertonic solution of a nonpenetrating solute. What happens initially?
The cell immediately divides
No water moves
Water enters and the cell swells
Water leaves and the cell shrinks
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Correct answer: D
Water leaves and the cell shrinks
The higher external effective solute concentration draws water out of the cell.
Biology · Question 138
A carrier moves glucose down its concentration gradient without energy input. What type of transport is this?
Exocytosis
Primary active transport
Endocytosis
Facilitated diffusion
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Correct answer: D
Facilitated diffusion
Facilitated diffusion uses membrane proteins to move substances down their gradient.
Biology · Question 139
What directly supplies energy to the sodium-potassium pump?
Light absorption
ATP hydrolysis
Protein digestion
DNA replication
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Correct answer: B
ATP hydrolysis
The sodium-potassium ATPase couples ATP hydrolysis to ion movement.
Biology · Question 140
In one normal transport cycle, the sodium-potassium pump moves:
2 sodium ions out and 3 potassium ions in
3 sodium ions in and 2 potassium ions out
Equal numbers of both ions out
3 sodium ions out and 2 potassium ions in
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Correct answer: D
3 sodium ions out and 2 potassium ions in
Each cycle exports three sodium ions and imports two potassium ions.