HESI A2 BIOLOGY LATEST EXAM
2026/2027 WITH 125 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
A plant cell shrinks from water loss. What type of environment was it placed in?
A. Plasmolytic
B. Hypertonic
C. Hypotonic
D. Isosmotic - ANSWER-B. Hypertonic
In a Punnett square, a capital letter represents what type of allele?
A. Dominant
B. Recessive
C. Homozygous
D. Heterozygous - ANSWER-A. Dominant
,Which technological device mimics the body's ability to maintain homeostasis?
A. Thermostat
B. Cell phone
C. Vacuum cleaner
D. Electric iron - ANSWER-A. Thermostat
24.
What term predicts the outcome of an experiment?
A. Experiment
B. Hypothesis
C. Conclusion
D. Observation - ANSWER-B. Hypothesis
Which bacteria has a circular shape?
A. Mycobacterium
B. Actinomyces
C. Clostridium
D. Neisseria - ANSWER-D. Neisseria
Which enzyme catalyzes elongation of the DNA strand during replication?
A. DNA polymerase
B. Primase
C. DNA ligase
D. Helicase - ANSWER-A. DNA polymerase
,What organisms cannot produce energy without oxygen?
A. Obligate anaerobes
B. Strict aerobes
C. Facultative aerobes
D. Facultative anaerobes - ANSWER-B. Strict aerobes
What term describes producing RNA from a DNA template?
A. Metabolism
B. Transcription
C. Synthesis
D. Replication - ANSWER-B. Transcription
Which function does the cell membrane perform?
A. Separates cell contents from environment
B. Stores water and sugars
C. Separates nucleus from cytoplasm
D. Converts energy for the cell - ANSWER-A. Separates cell contents from
environment
Where does photosynthesis take place?
A. Endoplasmic reticulum
B. Mitochondrion
C. Chloroplast
D. Golgi apparatus - ANSWER-C. Chloroplast
, What is the movement of water across a semipermeable membrane called?
A. Active transport
B. Passive transport
C. Osmosis
D. Diffusion - ANSWER-C. Osmosis
What term describes the sum of all chemical reactions in an organism?
A. Respiration
B. Anabolism
C. Metabolism
D. Differentiation - ANSWER-C. Metabolism
What process do sex cells undergo?
A. Mitosis
B. Binary fission
C. Facilitated division
D. Meiosis - ANSWER-D. Meiosis
What molecules increase reaction rates without being consumed?
A. Sugars
B. Proteins
C. Enzymes
D. Lipids - ANSWER-C. Enzymes
Which macromolecule is a nucleic acid?
2026/2027 WITH 125 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
A plant cell shrinks from water loss. What type of environment was it placed in?
A. Plasmolytic
B. Hypertonic
C. Hypotonic
D. Isosmotic - ANSWER-B. Hypertonic
In a Punnett square, a capital letter represents what type of allele?
A. Dominant
B. Recessive
C. Homozygous
D. Heterozygous - ANSWER-A. Dominant
,Which technological device mimics the body's ability to maintain homeostasis?
A. Thermostat
B. Cell phone
C. Vacuum cleaner
D. Electric iron - ANSWER-A. Thermostat
24.
What term predicts the outcome of an experiment?
A. Experiment
B. Hypothesis
C. Conclusion
D. Observation - ANSWER-B. Hypothesis
Which bacteria has a circular shape?
A. Mycobacterium
B. Actinomyces
C. Clostridium
D. Neisseria - ANSWER-D. Neisseria
Which enzyme catalyzes elongation of the DNA strand during replication?
A. DNA polymerase
B. Primase
C. DNA ligase
D. Helicase - ANSWER-A. DNA polymerase
,What organisms cannot produce energy without oxygen?
A. Obligate anaerobes
B. Strict aerobes
C. Facultative aerobes
D. Facultative anaerobes - ANSWER-B. Strict aerobes
What term describes producing RNA from a DNA template?
A. Metabolism
B. Transcription
C. Synthesis
D. Replication - ANSWER-B. Transcription
Which function does the cell membrane perform?
A. Separates cell contents from environment
B. Stores water and sugars
C. Separates nucleus from cytoplasm
D. Converts energy for the cell - ANSWER-A. Separates cell contents from
environment
Where does photosynthesis take place?
A. Endoplasmic reticulum
B. Mitochondrion
C. Chloroplast
D. Golgi apparatus - ANSWER-C. Chloroplast
, What is the movement of water across a semipermeable membrane called?
A. Active transport
B. Passive transport
C. Osmosis
D. Diffusion - ANSWER-C. Osmosis
What term describes the sum of all chemical reactions in an organism?
A. Respiration
B. Anabolism
C. Metabolism
D. Differentiation - ANSWER-C. Metabolism
What process do sex cells undergo?
A. Mitosis
B. Binary fission
C. Facilitated division
D. Meiosis - ANSWER-D. Meiosis
What molecules increase reaction rates without being consumed?
A. Sugars
B. Proteins
C. Enzymes
D. Lipids - ANSWER-C. Enzymes
Which macromolecule is a nucleic acid?
