Biology Flashcards
7 cards from real ATI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Biology flashcards as text
Which organelle is the primary site of ATP production in eukaryotic cells?
Answer: Mitochondria
Mitochondria generate most cellular ATP through oxidative phosphorylation.
During which phase of mitosis do sister chromatids separate and move to opposite poles?
Answer: Anaphase
In anaphase, sister chromatids are pulled apart toward opposite spindle poles.
What molecule carries amino acids to the ribosome during translation?
Answer: tRNA
Transfer RNA delivers specific amino acids matching the mRNA codon.
Which of the following best describes a hypertonic solution relative to a cell?
Answer: Higher solute concentration outside, water leaves the cell
In a hypertonic environment water moves out, causing the cell to shrink.
What is the complementary DNA base pairing for the sequence A-T-G-C?
Answer: T-A-C-G
Adenine pairs with thymine and guanine pairs with cytosine.
Which process converts glucose into pyruvate in the cytoplasm without requiring oxygen?
Answer: Glycolysis
Glycolysis breaks glucose into two pyruvate molecules in the cytosol anaerobically.
An enzyme's activity is most affected by changes in which two environmental factors?
Answer: Temperature and pH
Enzymes have optimal temperature and pH ranges that affect their shape and function.