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MTLE Middle Level Science: Molecular & Cellular Life Processes 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. What whorl in a flower contains the petals and attracts pollinators?

Question 2 2. Which of the following statements is true?

Question 3 3. What is NOT stored in the central vacuole of plants?

Question 4 4. If the cell of a diploid organism (2n=4) undergoes mitosis, how many chromosomes are present in each daughter cell?

Question 5 5. What does X-linked mean?

Page 2

Question 6 6. Which of the following structures is not found in the gynoecium whorl?

Question 7 7. What is the role of the pigment molecules in photosynthesis?

Question 8 8. Which of the following is NOT an example of a phenotype?

Question 9 9.

Which of the following is/are consequences of meiotic recombination?

I. Increased genetic diversity

II. Exchange of parts of homologous chromosomes

III. Stabilization of chromosomes at the metaphase plate

Question 10 10. The purpose of cellulose is to:

Page 3

Question 11 11. People today are taller than they were a hundred years ago. This seems to be because:

Question 12 12. Energy is released from ATP when the bond is broken between

Question 13 13. Every normal human has two sex chromosomes. Which of the following is the correct way to write these two chromosomes in a normal male?

Question 14 14. Select the gel-like substance that contains the organelles in a cell.

Question 15 15. Which organelle is described as the cell's detoxification center?

Page 4

Question 16 16. When living cells break down molecules of food, energy is

Question 17 17. Protons pumped into the central vacuole can affect this space by making it:

Question 18 18. In what year was the Y chromosome discovered to be a sex-determining chromosome?

Question 19 19. In order to produce the most ATP, an organism needs to perform

Question 20 20.

The following concepts led to the hypothesis that DNA has a double helix structure:

I. The ratio of A:T is 1:1.

II. The ratio of G:C is 2:1

III. DNA strands are antiparallel

Page 5

Question 21 21. The new cell wall which forms between dividing plant cells during cytokinesis is known as the _____.

Question 22 22. Which of the following parts of a cell is the control center that contains DNA?

Question 23 23. Although not a stage of mitosis, this phase of a cell's life is when DNA is copied.

Question 24 24. Which is true of most X-linked genetic disorders?

Question 25 25. If the cell of a diploid organism (2n = 6) undergoes meiosis, how many chromosomes are present in each daughter cell at the end of meiosis II?

Page 6

Question 26 26. What is the relationship between an individual's genotype and their phenotype?

Question 27 27. Which is an example of a phenotype?

Question 28 28. In which stage of mitosis do the chromosomes line up along the middle of the cell?

Question 29 29. Why is the stigma generally sticky?

Question 30 30. The purpose of _____ is to provide separation and compartmentalization of processes in eukaryotes.

MTLE Middle Level Science: Molecular & Cellular Life Processes 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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