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Advanced Science 7
Unit 2 Test
Name ________________
Date ____________
Chapters 4-7
Period ____
Identify the choice that best completes the statement or answers the question.
Chapter 4: Chemistry and Physics Connections
____ 1. A(n) ____ is the simplest form of matter.
a. cell
c. molecule
b. element
d. compound
____ 2. A(n) ____ is a group of two or more atoms joined together chemically.
a. cell
c. molecule
b. element
d. compound
____ 3. The most abundant molecules in living organisms are:
a. sulfur and nitrogen.
c. oxygen and phosphorus.
b. carbon, oxygen, and hydrogen.
d. carbon, oxygen and nitrogen.
.
____ 4. Which of the following is NOT a carbon compound found in living things?
a. Carbohydrates
c. Water
b. Proteins and lipids
d. Nucleic acids
____ 5. In this chemical reaction, glucose is:
a. a reactant.
b. a product.
c. a form of energy.
d. none of the above.
____ 6. In this chemical reaction, water is:
a. a reactant.
b. a product.
c. a form of energy.
d. none of the above.
____ 7. ____ is a nucleic acid that contains the information cells need to make proteins.
a. Starch
c. DNA
b. Hemoglobin
d. Glucose
____ 8. The bending of light as it crosses a boundary between two different materials is called:
a. reflection.
b. scattered reflection.
c. refraction.
d. None of the above.
Figure 4-1A
E
D
____ 9. In Figure 4-1A, A is the:
a. incident ray.
b. reflected ray.
c. incident angle.
d. reflected angle.
____ 10. In Figure 4-1A, D is the:
a. incident ray.
b. reflected ray.
c. incident angle.
d. reflected angle.
Chapter 5: Cell Structure and Function
Figure 5-1A
____ 11. Which of the diagrams in Figure 5-1A is of a eukaryotic cell?
a. A
c. neither A nor B
b. B
d. both A and B
____ 12. Which of the diagrams in Figure 5-1A is of a prokaryotic cell?
a. A
c. C
b. B
d. all of the above
____ 13. Which of the diagrams in Figure 5-1A is of a plant cell?
a. A
c. C
b. B
d. all of the above
____ 14. Examples of a prokaryotic cell are:
a. fungi.
b. euglena.
c. bacteria.
d. skin cells.
____ 15. All cells share the following characteristic(s):
a. DNA inside of the nucleus.
b. they are surrounded by a cell wall and cell membrane.
c. made up of organs.
d. organelles, DNA, cytoplasm, and a cell membrane.
Use the figure below for #16-17
____ 16. The job of the cell part labeled 5 is to:
a. act like a barrier.
c. store water.
b. make energy.
d. hold DNA.
____ 17. The cell part labeled 2 can be found in:
a. plant cells only.
c. both plant and animal cells.
b. animal cells only.
d. prokaryotic cells only.
____ 18. Photosynthesis takes place in the:
a. cell part labeled 1.
b. cell part labeled 3.
c. cell part labeled 7.
d. cell part labeled 8.
____ 19. Mitochondria is:
a. cell part labeled 1.
b. cell part labeled 3.
c. cell part labeled 7.
d. cell part labeled 8.
____ 20. DNA is:
a. also called cellulose.
b. hereditary material.
c. stored in the cell’s lysosome.
d. is in the nucleus of a prokaryotic cell.
Chapter 6: Cell Processes
____ 21. During diffusion molecules move:
a. from areas of low concentration to high concentration.
b. randomly back and forth.
c. to areas where there are a lot of water molecules.
d. from areas of high concentration to low concentration.
____ 22. Osmosis is the diffusion of:
a. sugar.
b. water.
c. oxygen.
d. all small particles.
____ 23. During ____, plants use sunlight to produce carbohydrates.
a. diffusion
c. cellular respiration
b. active transport
d. photosynthesis
____ 24. The colors that make up sunlight are called:
a. mirrored light.
c. ultraviolet light.
b. visible light.
d. microlight waves.
____ 25. ____ is a pigment used for photosynthesis.
a. Chloroplast
c. Ultraviolet light
b. Chlorophyll
d. Beta carotene
____ 26. What are the products of photosynthesis?
a. carbohydrates and oxygen
c. sunlight
b. carbon dioxide, water and energy
d. oxygen and carbon dioxide
____ 27. What are the products of cellular respiration?
a. carbohydrates and oxygen
c. sunlight
b. carbon dioxide, water and energy
d. oxygen and carbon dioxide
____ 28. ____ is the process in which glucose is changed into a form of energy.
a. ATP
c. Photosynthesis
b. Diffusion
d. Cellular respiration
____ 29. Cellular respiration takes place in the ____.
a. vacuole.
c. environment outside of a cell.
b. cell membrane.
d. mitochondria.
____ 30. Chlorophyll mostly absorbs:
a. green light.
b. orange light.
c. black light.
d. red and blue light.
Chapter 7: The Microscopic World
Figure 7-1A
____ 31. Which of the diagrams in Figure 7-1A shows flagellate that moves using a
structure called a flagella?
a. A.
c. C.
b. B.
d. None of the above
____ 32. In Figure 7-1A, the organism in diagram A moves using ____, which are
organelles used for movement.
a. flagella
c. pseudopods
b. cilia
d. contractile vacuoles
____ 33. In Figure 7-1A, the organism in diagram C moves using ____, which are
organelles used for movement.
a. flagella
c. pseudopods
b. cilia
d. contractile vacuoles
____ 34. Bacteria in soil turns ____ into a form that plants can use.
a. nitrogen
c. amino acids
b. calcium
d. other bacteria
____ 35. __________ bacteria use oxygen for cellular respiration.
a. Aerobic
c. Parasitic
b. Anaerobic
d. Viral
____ 36. __________ bacteria do not use oxygen for cellular respiration.
a. Aerobic
c. Parasitic
b. Anaerobic
d. Viral
____ 37. Bacteria can move by:
a. flagella.
b. being transferred from surface to surface.
c. using slime to move over surfaces.
d. All of the above
Figure 7-2A
____ 38. Which type of bacteria is shown in diagram A of Figure 7-2A?
a. Bacilli
c. Spirilla
b. Cocci
d. Eubacteria
____ 39. Which diagram in Figure 7-2A best shows bacteria called spirilla?
a. A
b. B
c. C
d. None of the above
____ 40. The following are examples of diseases caused by viruses EXCEPT:
a. AIDS.
c. strep throat.
b. small pox.
d. common cold.