Explain what it means that a hypothesis is falsifiable. (3)

Assignment 1 A

For students with first names starting with the letters A to G.

Assignments are graded out of a total of 60 points, and they are worth 9% of your total mark.

Submit this assignment after you have completed Unit 1 of the course.

Before you submit this assignment, make sure you have read the section on Assignments in your Course Orientation.

Part A: Short-answer questions

1. Explain what it means that a hypothesis is falsifiable. (3)

2. Describe five important structural aspects that you would find in a chloroplast. (5)

3. List three structural properties that are found in cells of both pro- and eukaryotes. (3)

4. Label the three indicated parts of the illustration of a cell given below, and answer the accompanying two questions. (9)

4a. 1)       (2)

2)       (2)

3)       (2)

4b. Would you expect this cell to be a prokaryote or eukaryote? (1)

4c. Why? (2)

5. Use the illustration below to answer the following three questions. (7)

5a. Which structure does the illustration above show? (1)

5b. Which model represents our current understanding of this structure? Explain the term. (4)

5c. In which of the following types of cells would you find this structure? Prokaryotes, plants, eukaryotes, animal cells. (2)

6. Name the three main types of options that cells have to transport molecules from the inside of the cell to the outside. (3)

7. Briefly describe the main stages in which signals from the outside affect changes in a cell. (5)

8. Trans fats are still used in the food industry of some countries despite the associated health concerns. Explain why they are still used and how they are replaced. (5)