This document contains a series of revision exercises about the functions of living things. It asks questions about the characteristics of living things, parts of cells, the three vital functions, autotrophic and heterotrophic nutrition, cell respiration, and diagrams explaining photosynthesis and cellular respiration. The final question asks the student to make a diagram explaining nutrition in a heterotrophic multicellular organism.

1. UNIT 10. THE FUNCTIONS OF LIVING THINGS I
Revision exercises
1. What are the characteristics that all the living things share?
2. Name the parts in the next drawings.

2. 3. Fill in the gaps.
a. The ………………………………………. cells are the ones that have both nuclei
and ……………………………..
b. The …………………………………… is the organelle that allows the
……………………………cells to do photosynthesis.
c. Plants cells have …………………………….. and chloroplast.
d. Animal cells are cells ………………………….. cell wall and chloroplast.
e. Both ………………………. Cells and ………………………………… are eukaryotic.
f. Prokaryotic cells are the ones …………………………… nuclei.
4. Define the three vital functions.
5. What are the nutrients that an autotrophic organism needs?
6. What are the nutrients that a heterotrophic organism needs?
7. Do the autotrophic organisms respire? Explain why. Explain cell respiration.
8. Explain why the next sentences are false:
a. To produce complex nutrients no energy is needed.
b. Cell respiration is only done by heterotrophic organisms.
c. The autotrophic organisms don´t need organic matter.
d. The heterotrophic organisms only need organic matter to grow.
e. In multicellular heterotrophic organisms the only system in charge
of nutrition is the digestive system.

3. 9. Complete the next diagrams and chose a title for them.
CO2 + H2O + …………+…………… O2 + ……………………………
Organic matter + ……………….. Energy + …………………………
10. Make a diagram explaining nutrition in a heterotrophic multicellular
organism.