MCQ in life science - Answer

1. All carbohydrates contain carbon, hydrogen and oxygen. All proteins contain carbon, hydrogen, oxygen and what other element? Your Answer: Nitrogen They are the only main food component that contains an extra element. 89% of players have answered correctly.

2. Which of these animals has a horny pad instead of top incisors? Your Answer: Sheep Sheep are ruminants and do not need incisors. 80% of players have answered correctly.

3. What is the name given to a species that can be used to tell something about the environment (e.g how much pollution there is in water)? Your Answer: Indicator 18% of players have answered correctly.

4. Which are alive- xylem or phloem cells ? Your Answer: phloem Xylem carries water from the roots to all parts of the plant. Phloem carries food from the leaves to places that can't make food for itself. 44% of players have answered correctly.

5. Photosynthesis = Carbon Dioxide + Water = _____ + Oxygen Fill in the blank Your Answer: Glucose 69% of players have answered correctly.

6. Which of these ways is a way that mammals gain water? Your Answer: food 87% of players have answered correctly.

7. Is the large or small intestine the longest? Your Answer: small intestine It is called the small intestine because it is thinner of the two. 85% of players have answered correctly.

8. Which of these hold bones together? Your Answer: ligament Tendons attach muscles to bones, cartilage acts as a shock absorber and allows smooth movement and synovial fluid acts as a lubricant. 56% of players have answered correctly.

9. What name is given to the clear layer at the front of the eye? Your Answer: cornea Each eye sees a different picture and the brain puts the two images together. 40% of players have answered correctly.

10. What is the name of the sugar found in milk? Your Answer: lactose This is converted into lactic acid by fermentation. 63% of players have answered correctly.