IB DP Chemistry: Biochemistry

Question 1

Monosaccharides are joined together to make disaccharides by what kind of linkage?

Accepted Answer

Glycosidic

Question 2

Vitamin K is commonly found in plant oils such as corn oil and soya bean oil. What does this indicate about vitamin K?

Accepted Answer

It is non-polar.

Question 3

Which of the organisms in this aquatic food chain is likely to be most affected by toxins in the oceans?

Accepted Answer

Herring gull

Question 4

Which of the following is a characteristic symptom of a lack of vitamin D (rickets)?

Accepted Answer

Soft and flexible bones

Question 5

Which sample of broccoli would contain the highest level of vitamin C?

Accepted Answer

raw (uncooked) broccoli

Question 6

Which enzyme would be most useful in the production of paper from wood pulp?

Accepted Answer

Cellulase

Question 7

Lack of which vitamin causes night blindness (nyctalopia)?

Accepted Answer

Vitamin A

Question 8

Which of the following would not be classified as a bioplastic?

Accepted Answer

Polyethylene made from an alkene.

Question 9

Which of the following is not an example of a green chemistry practice?

Accepted Answer

Reducing the use of enzymes in synthetic processes.

Question 10

True or False. Using detergents containing enzymes means you can wash your clothes just as well at higher temperatures.

Accepted Answer

False

Question 11

Some plastics can be broken down by _______

Accepted Answer

bacteria in a process of biodegradation.

Questions 11