Yeast can ferment a variety of sugars in anaerobic conditions. Carbon dioxide is produced as a byproduct. A respirometer can be used to determine how much carbon dioxide is produced and thus measure rates of fermentation. Respirometers were set up that contained yeast and either a solution containing a carbohydrate or distilled water. The height of the bubble contained in the respirometer was measured every 5 minutes for 20 minutes. The results can be seen in the graph below. Which tube from this experiment is most likely to contain distilled water & yeast?

Electron Transport Chair occurs in the [question1]. Glycolysis occurs in the [question2]. Citric Acid Cycle occurs in the [question3].  Fermentation occurs in the [quetion4].  

The DNA fragments of the highest molecular weight will be found at the bottom of the gel.

  Read Text 2 and answer Questions 6 to 10.   Right-click on the button below to open Text 2 in a new tab. “Goodreads Community Reviews”.  

You create an experimental “cell” by putting a 50% sugar solution into some dialysis tubing (a semi-permeable membrane). Sugar molecules are large and cannot pass through the membrane. If you wanted to make your cell gain weight, which beaker should you add your cell to?

15. Write a synonym for “faltered” as used in this sentence.   “It is foolish and wicked,” he faltered.       (1)

You notice that your basil plant is starting to brown and shrivel up. In response, you decide to water the soil around the basil plant’s roots. Compared to the cells of the plant, water is a:

18. Explain two examples, in detail, of how the author shows that a person in POWER has the potential for both good and evil actions.   Remember to reference the text to support your ideas.       (4)

11.2 Read the statement and decide whether it applies to Text 1 or Text 2 or both texts by choosing the appropriate option from the dropdown list.   It is written in a descriptive, persuasive style.              (1)

4.1.2 Mr. And Mrs. Brown wants to start selling their vetkoek in-store and needs to package it.   Supply information that needs to be on the label when selling the product.  (6)