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Discover Health Occupations Readiness Test: Life Science Overview Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. A new mutation allows a cheetah to run faster and hunt down more prey than its slower counterparts. This mutation increased the _____ of the cheetah.

Question 2 2. A piece of DNA has the following sequence: ATGGCATAC. What is the sequence of the complementary piece of DNA?

Question 3 3. What gives each of your cells its unique structure and function?

Question 4 4. When a protein makes it easier for a biological reaction to happen, it is acting as _____.

Question 5 5. Signaling molecules ______.

Page 2

Question 6 6. What is the order of steps for Meiosis I?

Question 7 7.

Which of the following is an example of analogous structures or traits?

I. Leg bones of a human and leg bones of a penguin

II. Wing of a penguin and wing of a mosquito

III. Beak of a penguin and beak of a duck

Question 8 8.

Place the following terms in order building out from the most basic subunit to the entire genetic unit:

I. Gene

II. DNA

III. chromatin

IV. nucleosome

Question 9 9. Which of the following is the correct equation for photosynthesis?

Question 10 10. What happens to the RNA primers after DNA polymerase has synthesized the new strands of DNA?

Page 3

Question 11 11. During which of the three phases of cell respiration is the most ATP produced?

Question 12 12. A codon is which of the following?

Question 13 13. How are electrons released during the process of respiration?

Question 14 14. Human cells are which type?

Question 15 15. DNA stands for which of the following?

Page 4

Question 16 16. In biological taxonomy, we organize living things into how many different ranks?

Question 17 17. A discrete unit of DNA that produces a protein that provides the functionality a cell needs is

Question 18 18. Genes are small sequences on DNA, which is coiled up super tight to form _____.

Question 19 19. What is the role of the pigment molecules in photosynthesis?

Question 20 20.

Which of the following are reasons why RNA is generally less stable than DNA?

I. Fewer hydrogen bonds

II. Prevalence of proteins that can degrade RNA

III. Fewer -OH groups in the sugar of RNA

Page 5

Question 21 21. What are genes?

Question 22 22. The combination of multiple histones and DNA is called

Question 23 23. What happens to the solar light energy in photosynthesis?

Question 24 24. Which of the following is NOT part of cell theory?

Question 25 25. ______ is how generic embryonic cells become specialized cells.

Page 6

Question 26 26. What is the correct term for scientific classification?

Question 27 27. A protein that plays a central role in DNA folding

Question 28 28. In eukaryotic organisms, the DNA is stored where?

Question 29 29. Which of the following are characteristics of DNA?

Question 30 30. Which of the following is an example of anaerobic respiration?

Discover Health Occupations Readiness Test: Life Science Overview Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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