Daily Practice Questions

6 questions across multiple subjects, with detailed explanations and study tips.

📝 Questions

🧬 AP Biology Medium
Which of the following correctly lists the products of the Calvin cycle?
  1. A. ADP, NADP ^{+} , oxygen
  2. B. ATP, NADPH, oxygen
  3. C. G3P, ADP, NADP ^{+} ✓
  4. D. G3P, ATP, NADPH
Explanation: The Calvin cycle uses energy from ATP and reducing power from NADPH (produced in the light-dependent reactions) to convert carbon dioxide into sugar precursors like G3P. During this process, ATP is hydrolyzed back to ADP and NADPH is oxidized back to NADP⁺, which are then recycled back to the thylakoids for more light reactions; therefore, G3P, ADP, and NADP⁺ are the net products leaving the cycle. Options A and B are incorrect because oxygen is a byproduct of the light-dependent reactions, not the Calvin cycle, and options B and D incorrectly list ATP and NADPH as outputs rather than inputs.
📊 SAT Math Easy
Which choice completes the text so that it conforms to the conventions of Standard English? March was abnormally __________ the latter part of the month. April, however, was unusually warm for the springtime.
  1. A. has ✓
  2. B. have
  3. C. had
  4. D. will have
Explanation: The sentence requires the present perfect tense ("has been") because the action of March being abnormally cold started in the past and continues into the present moment of speaking. Choice (A) "has" correctly pairs with the implied verb "been" to form this tense, whereas choices like "had" refer strictly to a completed past time that no longer connects to the present.
💻 AP Computer Science A Medium
Top-down programming is illustrated by which of the following?
  1. A. Writing a program from top to bottom in Java
  2. B. Writing an essay describing how the program will work, without including any Java code
  3. C. Using driver programs to test all methods in the order that they’re called in the program
  4. D. Writing and testing the lowest level methods first and then combining them to form appropriate abstract operations
  5. E. Writing the program in terms of the operations to be performed and then refining these operations by adding more detail ✓
Explanation: 3. (E) Top-down programming consists of listing the methods for the main object and then using stepwise refinement to break each method into a list of subtasks. Eliminate choices A, C, and D: Top-down programming refers to the design and planning stage and does not involve any actual writing of code. Choice B is closer to the mark, but “top-down” implies a list of operations, not an essay describing the methods.
📖 SAT Reading & Writing Medium
Which choice most logically completes the text? Originating in13th-century Japan, haikus were originally used as openings for longer poems called renga poems. But it wasn’t until Matsuo Bashō redefined haiku poetry that it __________ what it is today.
  1. A. the queen bee will have the resilience to overcome any infestation that manifests.
  2. B. the number of worker bees in a colony exceeds the number of drone bees.
  3. C. a beekeeper can utilize thermal imagery to detect the presence of mites in the cells.
  4. D. there are more mites breeding in capped cells that mite treatments may not reach. ✓
Explanation: The text states that the bees cannot see into the capped cell, so they do not know if mites are growing inside the cells. Thus, choice (D) makes the most sense because it underscores how there are mites breeding that the treatments may not reach because they are inside the capped cells. It is not choice (A) or (C) because these options would instead show that the mites could be gotten rid of. It is not (B) because this would not be directly relevant to the claim made in the final sentence of the text.
🎓 GRE Prep Medium
The star receiver is widely regarded as one of the top talents in the game, but his performance as a rookie almost ended his career.
  1. A. jubilance
  2. B. sorrow ✓
  3. C. mischievousness
  4. D. vision
  5. E. liveliness
Explanation: The phrase 'his performance as a rookie almost ended his career' suggests a negative or distressing experience, which aligns with 'sorrow'. The contrast between being 'widely regarded as one of the top talents' and a near-career-ending rookie performance implies emotional turmoil, making sorrow the most appropriate word.
⚛️ AP Physics C Medium
A loop is moved out of a magnetic field at constant velocity as shown. Which of the following statements about the induced current in the loop and the applied force on the loop is correct? (The magnetic field points into the page.)
  1. A. The current is clockwise, and the applied force is to the right. ✓
  2. B. The current is clockwise, and the applied force is to the left.
  3. C. The current is counterclockwise, and the applied force is to the right.
  4. D. The current is counterclockwise, and the applied force is to the left.
  5. E. The current is counterclockwise, and the applied force is into the page.
Explanation: As the loop moves to the right out of the magnetic field, the flux pointing into the page decreases; by Lenz's Law, the induced current must create a magnetic field also pointing into the page to oppose this change, which requires a clockwise current. To maintain constant velocity against the magnetic drag force exerted on the wire carrying this clockwise current, an external applied force must push the loop to the right.

💡 Study Tips

💚 Stay hydrated during study sessions

Even mild dehydration can reduce concentration and short-term memory. Keep a water bottle at your desk and take a sip during each break. Your brain is mostly water — it needs fuel to perform.

📖 Use the Pomodoro Technique

Set a timer for 25 minutes of focused study, then take a 5-minute break. After four cycles, take a longer 15-30 minute break. This prevents burnout and keeps your focus sharp.

← Previous Day Next Day →

Want personalized practice?

Sign up for free to get adaptive questions tailored to your skill level.

Get Started Free