Chapter 2 Quiz Copyright © 2007 by Thomson Nelson Chapter 2 Blackline Master 2.0 207 Blackline Master 2.0 Name: __________________________________________ Date: ________________________ Part A: Matching Match each word with the correct definition. (a) animal (b) plant (c) protist (d) bacteria (e) fungus _D___ 1. extremely tiny cells, with no nucleus and no mitochondria __C 2. a group of unicellular organisms with plant- and animal-like characteristics ___B_ 3. multicellular organism that undergoes photosynthesis __E__ 4. plant-like but without chlorophyll __A_ 5. multicellular organisms that rely on other organisms for food Part B: Completion Complete each sentence. 6. A group of broad and flat cells that cover and protect is called ___epithelial___ tissue. 7. Tiny hair-like structures called __cilia_______________________ beat in unison to move a paramecium. 8. Lung cells are very thin to allow for the exchange of _gas/carbon dioxide/oxygen______ between the air and the blood. 9. Fat cells have large _____vacuoles____________ that store extra nutrients that have been converted to fat. Part C: Multiple Choice Circle the letter beside the answer that best completes the statement or answers the question. 10. A group of cells that are similar in shape and function is called a(n) (a) tissue (c) cell system (b) organ (d) organ system 11. Which of the following contain no nucleus, no mitochondria, and no ribosomes? (a) paramecia (c) bacteria (b) diatoms (d) amoebae 12. A cube with sides of 2 cm each has a total surface area of (a) 4 cm2 (c) 24 cm2 (b) 8 cm2 (d) 32 cm2 Chapter 2 Quiz (continued) 208 Chapter 2 Blackline Master 2.0 Copyright © 2007 by Thomson Nelson Blackline Master 2.0 (continued) Name: __________________________________________ Date: ________________________ 13. Why are many small cells more efficient at exchanging nutrients and waste than one large cell? (a) Many small cells have more mitochondria. (b) Many small cells have more surface area. (c) Many small cells are more active. (d) Many small cells have more nuclei. 14. Tissue that conducts electrical signals is (a) blood tissue (b) fat tissue (c) nerve tissue (d) muscle tissue 15. Which disease is caused by a fungus? (a) pneumonia (b) malaria (c) cold sores (d) athlete’s foot 16. The exchange or modification of genetic material in cells is called (a) reproduction (b) genetic engineering (c) selective breeding (d) cell division Part D: Short Answer Use sentences to answer the following questions. 17. Explain why unicellular organisms are often called micro-organisms. _____can only see it under a microscope____________________________ 18. (a) Complete the following table and answer the questions below. (b) Explain what happens to the surface area to volume ratio as the length of the side of a cube increases. _____surface area to volume ration decreases as the cube increase____________ ________________________________________________________________ ________________________________________________________________ (c) How does this explain why cells divide? ___as the surface area volume ratio decreases nutrients cannot diffuse to all parts of the cell and waste builds up. Cells divide into smaller cells to be more efficient ________________________________________________________________ Cube sides (cm) Surface area (6 cm2) Volume (cm3) Ratio of surface area to volume 1 1 6:1 2 24 4 64 6 216