BOT100 Review assignment 3 20 points 07/03/08

Write or type out answers on another piece of paper.

1. In the Botanic garden what adaptation does the small Douglas fir have and why?

2. What are some other habitats that would have plants with this same adaptation?

3. What are lichens and how do they improve the soil nutrients.

4. What are the three most important soil nutrients found in fertilizer and where do they come from?

5. Describe how Temperature, Humidity and Light vary between the redwood and chaparral habitats. Give three adaptations for each habitat that improves the survival of the native plants.

6. What are 3 types of chemical bonds and an example of each?

7. What are 5 properties of water that make it valuable for life on earth?

8. Describe Phototropism Gravitropism and Thigmotropism and give an example of each.

9. What does the hormone Auxin do in plants?

10. What does the hormone Ethylene do in plants

11. What are the 5 most important and abundant elements in plants and where are they found?

12. What are three examples of carbohydrates?

13. What are 3 ways proteins are used in living things?

14. What makes a compound organic?

15. What is the chemical equation for photosynthesis?

16. What is the chemical equation for respiration?

17. Which organelle contains chlorophyll?

18. What are the roles played by biological membranes?

19. According to the cell theory, all cells arise from _______________

20. What are the functions of the nucleus, the mitochondria, the chloroplast and the endoplasmic reticulum?

21. Draw a plant cell and label its parts.

22. No cell can exist even momentarily without this structure. Why?

23. Describe how plant cells first got mitochondria and chloroplasts?

24. Which of the following is a role played by biological membranes?

a. receive information from the surroundings

b. control internal concentrations

c. help maintain homeostasis

d. regulate the exit of wastes

e. all of the above

25. The nucleolus

a. controls the activities within the nucleus

b. controls the activities within the cytoplasm

c. synthesizes ribosomes

d. synthesizes proteins

e. synthesizes chromosomes

26. The endoplasmic reticulum

a. is continuous with the plasma membrane and the nuclear envelope

b. synthesizes membranes

c. is the location for lipid synthesis

d. all of the above

e. both a and b

27. What part of the eukaryotic cell directs the metabolic activities of the cell?

a. cell membrane

b. nucleus

c. mitochondria

d. cytoplasm

e. endoplasmic reticulum

28. Chloroplasts are never found in

a. plants

b. bacteria

c. algae

d. both a and b

e. both a and c

29. Cell walls are found in all but

a. plants

b. animals

c. fungi

d. algae

e. bacteria

30. A large, membrane-bounded sac within plant cells is called a ___.

a. vacuole

b. vesicle

c. chloroplast

d. mitochondrion

e. chromoplast

31. Animal cells have ___, but plant cells do not.

a. endoplasmic reticulum

b. cell walls

c. mitochondria

d. ribosomes

e. centrioles

32. Since hydrogen bonds are weak compared to covalent bonds, they really are not very important in biological systems..

a. True

b. False

33. Few organisms can digest cellulose..

a. True

b. False

34. Proteins are important structural molecules in cells..

a. True

b. False

35. Turgor pressure within plant cells keeps them stiff; without it the plant would wilt..

a. True

b. False

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