1. Practice EOC Questions
Part Three
(41 – 60)

2. A. abiotic B. aerobic C. anaerobic D. biotic The correct answer is… C
41. Lactic acid is produced in muscles that are operating in the absence of oxygen. What type of processes occur in the absence of oxygen?
A. abiotic
B. aerobic
C. anaerobic
D. biotic
The correct answer is… C

3. A. solid and gel B. solid and gas C. gel and liquid D. gas and liquid
42. Which of these descriptions accurately characterizes the products of photosynthesis?
A. solid and gel
B. solid and gas
C. gel and liquid
D. gas and liquid
The correct answer is.. B

4. A. carbon dioxide B. chlorophyll C. oxygen D. water
43. What substance acts as a catalyst for photosynthesis, capturing light for conversion into usable energy?
A. carbon dioxide
B. chlorophyll
C. oxygen
D. water
The correct answer is.. B

5. B. water and carbon dioxide C. glucose and oxygen
44. Under optimum conditions, plants would take in increased amounts of which substances?
A. water and glucose
B. water and carbon dioxide
C. glucose and oxygen
D. glucose and carbon dioxide
The correct answer is… B

6. A. ribose, adenine, phosphoric acid
45. Which of the following groups of molecules makes up a DNA nucleotide?
A. ribose, adenine, phosphoric acid
B. deoxyribose, uracil, phosphoric acid
C. ribose, thymine, phosphoric acid
D. deoxyribose, adenine, phosphoric acid
The correct answer is… D

7. A. hydrogen bonds between nitrogen bases
46. Which of the following most likely explains DNA’s ability to create exact copies of itself?
A. hydrogen bonds between nitrogen bases
B. base pairing between adenine and thymine, guanine and cytosine
C. double helix patter of the DNA molecule
D. anti-parallel strands of DNA
The correct answer is.. B

8. 47. Which of the following represents the correct base pairing in a DNA molecule?
A. A-A-G-G-C-T
T-T-C-C-G-A
B. A-T-G-C-A-T
A-T-G-C-A-T
C. A-A-G-G-C-T
C-C-T-T-A-G
The correct answer is… A

9. C. Schleiden and Schwann D. Mendel and Franklin The correct answer is…
48. Which group of scientists discovered the shape of the DNA molecule?
A. Hershey and Chase
B. Watson and Crick
C. Schleiden and Schwann
D. Mendel and Franklin
The correct answer is… B

10. A. T-T-A-C-G-G B. T-T-U-C-G-G C. U-U-A-C-G-G D. A-A-U-G-C-C
49. Which of the following represents the mRNA code copied from the DNA code : A – A – T – G – C - C
A. T-T-A-C-G-G
B. T-T-U-C-G-G
C. U-U-A-C-G-G
D. A-A-U-G-C-C
The correct answer is… C

11. 50. A RNA nucleotide consists of which of the following parts?
A. deoxyribose, guanine, phosphoric acid
B. ribose, thymine, phosphoric acid
C. deoxyribose, uracil, phosphoric acid
D. ribose, guanine, phosphoric acid
The correct answer is… D

12. 51. Which statement is true about both DNA and RNA?
A. They are single stranded.
B. They contain guanine.
C. They are composed of ribose.
D. Uracil is one of the nitrogen bases.
The correct answer is… B

13. 52.Which structure is found in both the nucleus and the cytoplasm?
A. DNA
B. mRNA
C. tRNA
D. ribosome
The correct answer is… B

14. 53. Watson and Crick’s discovery of the DNA molecule’s structure is a good example of which of the following?
A. Scientists illegally acquire information from other scientists.
B. Scientists may base their conclusions on the evidence obtained from other scientist’s work.
C. Scientists spent years collecting data to determine the DNA structure.
D. Scientists draw conclusions based upon intuition.
The correct answer is… B

15. 54.Which process would most likely occur after DNA replication?
A. meiosis
B. translation
C. transcription
D. respiration
The correct answer is… A

16. 55. In DNA, which nitrogen base pairs with adenine?
A. cytosine
B. guanine
C. thymine
D. uracil
The correct answer is… C

17. 56. In a DNA molecule, where does a mutation occur?
A. in the deoxyribose
B. in the nitrogen bases
C. in the phosphoric acid
D. in the hydrogen bonds
The correct answer is.. B

18. A. a human female ovulating
57. Which of the following most closely matches the function of mitosis?
A. a human female ovulating
B. a male pine cone produces thousands of pollen grains
C. a virus attaches to a host cell
D. a tomato plant gets larger throughout the summer
The correct answer is… D

19. 58. What is the purpose of meiosis?
A. asexual reproduction
B. growth
C. produce gametes
D. repair
The correct answer is.. C

20. 59. During meiosis why is the chromosome number reduced to half?
A. to maintain the species original chromosome number at fertilization
B. to make sexual reproduction easier with fewer chromosomes
C. with a reduced number of chromosomes, the chances of mutation decreases
D. to increase variation of individuals during reproduction
The correct answer is.. A

21. A. replication B. reproduction C. translation D. transcription
60. What cell process would occur prior to a cell going through mitosis and meiosis?
A. replication
B. reproduction
C. translation
D. transcription
The correct answer is.. A