Mixed Deck — All DAT Topics Flashcards
100 cards from real DAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 20 Mixed Deck — All DAT Topics flashcards as text
Because the passages are unfamiliar scientific topics, the best mindset is to:
Answer: Treat the passage as the sole source of truth for answers
All answers should come from the passage itself, not outside knowledge.
A face marked with stripes running left-to-right, when folded onto a vertical side, will show stripes that:
Answer: Maintain their orientation relative to the shared edge
Folding rotates the face but the stripes stay fixed relative to the connecting edge.
Which subatomic particle determines the identity of a chemical element?
Answer: Proton
The number of protons (atomic number) defines the element.
In N2 + 3H2 → 2NH3, how many liters of NH3 form from 6 L of H2 at constant T and P?
Answer: 4 L
Gas volume ratio of H2 to NH3 is 3:2, so 6 L H2 gives 4 L NH3.
If 5 pencils cost $2.00, how much do 12 pencils cost?
Answer: $4.80
Each pencil costs $0.40, so 12 × $0.40 = $4.80.
In the DAT Angle Ranking task, what are you asked to do with the four lettered angles?
Answer: Rank them from smallest to largest
The Angle Ranking subtest requires ordering the four angles from smallest to largest.
A molecule is chiral if it:
Answer: Is non-superimposable on its mirror image
Chirality means the molecule cannot be superimposed on its mirror image.
Among answer choices, an impossible distractor often features a pattern on a face that:
Answer: Cannot be adjacent to its neighbors per the net
Wrong answers place a mark on a face whose adjacency contradicts the net.
An urn has 3 red and 7 blue balls. Two are drawn without replacement. What is the probability both are red?
Answer: 1/15
(3/10) × (2/9) = 6/90 = 1/15.
When the author uses the phrase 'it is widely believed, but recent evidence suggests otherwise,' the author's purpose is to:
Answer: Set up a challenge to a prevailing assumption
The phrasing introduces evidence that contradicts a common belief.
Which molecule combines with acetyl-CoA to form citrate?
Answer: Oxaloacetate
Citrate synthase condenses acetyl-CoA with oxaloacetate to begin the cycle.
What are the coordinates of point B when point A(10,3) is reflected over the y-axis to get point B?
Answer: (−10,3)
When a point is reflected over the y-axis, its x-coordinate changes sign while its y-coordinate remains the same. For point A(10,3), reflecting it over the y-axis means the x-coordinate of 10 becomes -10, while the y-coordinate of 3 stays the same. Therefore, the coordinates of point B are (-10,3).
What is the conjugate base of water (H2O)?
Answer: Hydroxide (OH-)
Removing a proton from water yields the hydroxide ion.
On the DAT, there is no penalty for guessing, which means you should:
Answer: Answer every question even if unsure
Without a guessing penalty, leaving blanks only loses potential points.
According to the passage, how do psychrophiles maintain cell membrane fluidity at low temperatures?
Answer: By incorporating a higher percentage of unsaturated and short-chain fatty acids.
The first paragraph explicitly states that a primary challenge is reduced membrane fluidity and that 'Psychrophilic bacteria counteract this by incorporating a higher proportion of unsaturated and short-chain fatty acids into their membrane phospholipids.' This directly answers the question.
Solve for x: x/3 + 5 = 11.
Answer: 18
x/3 = 6, so x = 18.
In how many ways can the letters of the word 'DAT' be arranged?
Answer: 6
Three distinct letters give 3! = 6 arrangements.
A 'function' or 'purpose' question about a sentence asks why the author:
Answer: Included that sentence in the passage
Function questions ask about the author's reason for including a statement.
Newman projection: the staggered conformation is favored because it:
Answer: Minimizes torsional strain
The staggered arrangement places bonds 60° apart, minimizing torsional (eclipsing) strain.
E/Z nomenclature is used instead of cis/trans when:
Answer: Each double-bond carbon has different priority substituents
E/Z is required when substituents differ and cis/trans becomes ambiguous, using CIP priorities.