Chapter 2pre Quiz

advertisement
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
Download