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Free HESI Biology Practice Test
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Question 1 of 15
1. Question
A pea plant that is heterozygous for purple flowers is crossed with a pea plant that is homozygous for white flowers. If purple is dominant, what percent of the offspring will be white?
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Question 2 of 15
2. Question
Which of these macromolecules consist of polysaccharides and are broken down by an enzyme found in saliva and the pancreas?
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Question 3 of 15
3. Question
If you placed a human nerve cell in distilled water, the direction of osmosis will cause the cell
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Question 4 of 15
4. Question
Match the following genetic terms with their book metaphors:
Sort elements
- book
- chapter
- sentence
- word
- letter
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Genome
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Chromosome
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Gene
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Codon
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Nucleotide
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Question 5 of 15
5. Question
Which of these physiological processes is the closest equivalent to the reverse of photosynthesis?
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Question 6 of 15
6. Question
Assume that white pears are recessive and red pears are dominant, and these are the only two colors of alleles in this pear species. Then a white pear x red pear with heterozygous alleles would produce what percentage of white pears?
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Question 7 of 15
7. Question
The production of 32 ATPs takes place during which of these?
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Question 8 of 15
8. Question
Which of the following statements is not true about mutations?
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Question 9 of 15
9. Question
A grasshopper, a trout, and a lion would all belong to which of the following?
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Question 10 of 15
10. Question
One of the functions of the liver is to detoxify the blood by removing harmful materials. This function is performed by which of these organelles?
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Question 11 of 15
11. Question
Which one of the following is an anaerobic process?
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Question 12 of 15
12. Question
Binary fission in bacteria is most like which of these reproductive processes?
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Question 13 of 15
13. Question
Placing a cell in a hypotonic solution will result in which of the following?
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Question 14 of 15
14. Question
The most efficient way to block protein synthesis would be to block the action of which of these organelles?
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Question 15 of 15
15. Question
Which of these cell organelles is responsible for packaging, processing, and shipping proteins and lipids?
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HESI Biology Overview
HESI biology is 1 of 8 potential sections you will take on the HESI exam. You can expect the following if you are asked to take the biology section:
- 30 Questions
- 25 Minutes
Some common topics tested on this section include:
- Biology Basics
- Cells
- Cellular Respiration
- Photosynthesis
- DNA
- Molecules
- Genetics
- Metabolism
Use more of our free prep by visiting our free HESI A2 practice test page.
Studying for HESI Biology
Studying for the biology section of the exam can feel more like a memory exercise for some people. We recommend the following when preparing for this section:
- Learn the Basics: Make sure you understand the basics for each concept. This means actually learning and understanding things, not just memorizing.
- Practice: Once you understand the basics, take some practice exams and see where you stand. These will be a good indicator of if you are ready or not.
- Flashcards: Use flashcards for this section to ensure that you comprehend the important concepts.
HESI Biology FAQs
Some of the topics that are tested on the HESI math exam include:
- Biology Basics
- Cells
- Cellular Respiration
- Photosynthesis
- DNA
- Molecules
- Genetics
- Metabolism
There are 30 total questions on the biology portion of the HESI. Of those 30 questions, only 25 are scored. You will not know which questions are unscored, so try to answer them all correctly.
You will have 25 minutes to complete the biology portion of the exam. To keep pace, you will want to spend less than 50 seconds per question.
A great way to study for this section is to use a HESI exam study guide. A study guide will help refresh you on key topics and concepts.
In addition, having a study guide will help you study more efficiently. Everything you need to know will be in one place.