HESI A2 Biology Questions and
Answers | Latest Version | 2025/2026 |
Correct & Verified
What process converts DNA into RNA?
✔✔Transcription
What process converts mRNA into a protein?
✔✔Translation
What organelle is responsible for producing lipids and steroid hormones?
✔✔Smooth endoplasmic reticulum
What process describes the engulfing of large particles by the cell membrane?
✔✔Phagocytosis
What process describes the cell releasing large substances to the outside?
✔✔Exocytosis
1
,What part of the phospholipid bilayer is hydrophilic?
✔✔The phosphate head
What part of the phospholipid bilayer is hydrophobic?
✔✔The fatty acid tails
What organelle is responsible for breaking down fatty acids and producing hydrogen peroxide?
✔✔Peroxisome
What is the phase of the cell cycle when the cell grows and performs normal functions?
✔✔G1 phase
What is the process by which plants convert light energy into chemical energy?
✔✔Photosynthesis
What molecule is the primary energy currency of the cell?
✔✔ATP
2
, What organelle contains its own DNA and ribosomes in both plants and animals?
✔✔Mitochondria
What organelle contains its own DNA and ribosomes only in plants?
✔✔Chloroplast
What are the repeating units that make up microtubules?
✔✔Tubulin
What are the repeating units that make up microfilaments?
✔✔Actin
What organelle is responsible for producing most of the cell’s ATP?
✔✔Mitochondria
What structure controls the entry and exit of substances in and out of the cell?
✔✔Cell membrane
3
Answers | Latest Version | 2025/2026 |
Correct & Verified
What process converts DNA into RNA?
✔✔Transcription
What process converts mRNA into a protein?
✔✔Translation
What organelle is responsible for producing lipids and steroid hormones?
✔✔Smooth endoplasmic reticulum
What process describes the engulfing of large particles by the cell membrane?
✔✔Phagocytosis
What process describes the cell releasing large substances to the outside?
✔✔Exocytosis
1
,What part of the phospholipid bilayer is hydrophilic?
✔✔The phosphate head
What part of the phospholipid bilayer is hydrophobic?
✔✔The fatty acid tails
What organelle is responsible for breaking down fatty acids and producing hydrogen peroxide?
✔✔Peroxisome
What is the phase of the cell cycle when the cell grows and performs normal functions?
✔✔G1 phase
What is the process by which plants convert light energy into chemical energy?
✔✔Photosynthesis
What molecule is the primary energy currency of the cell?
✔✔ATP
2
, What organelle contains its own DNA and ribosomes in both plants and animals?
✔✔Mitochondria
What organelle contains its own DNA and ribosomes only in plants?
✔✔Chloroplast
What are the repeating units that make up microtubules?
✔✔Tubulin
What are the repeating units that make up microfilaments?
✔✔Actin
What organelle is responsible for producing most of the cell’s ATP?
✔✔Mitochondria
What structure controls the entry and exit of substances in and out of the cell?
✔✔Cell membrane
3
