Cell Unit Practice Test #1
Name: Date:
1. Which organelle is primarily concerned with the conversion of potential energy of organic compounds into suitable form for immediate use by the cell?
A. mitochondria B. centrosomes C. ribosomes D. vacuoules
2. Which structures function mainly in transport?
A. A and F B. B and D
C. C and F D. C and D
3. A student lled a bag of dialysis tubing with a milky-white starch solution and placed the bag in a beaker of iodine-water as shown in the diagram.
An hour later, the student observed that the starch solution had turned blue-black (positive test for starch). What is the most probable explanation for the change?
A. The iodine di used into the bag.
B. The starch was changed to sugar.
C. The iodine was changed to starch.
D. The starch di used out of the bag.
4. In which organelle would water and dissolved materials be stored?
A. 1 B. 2
C. 3 D. 5
5. Most of the enzymes involved in aerobic cellular respiration are located in the organelle labeled
A. 1 B. 2 C. 3 D. 4
6. Which structure, composed mainly of proteins and lipids, aids in maintaining homeostasis in a cell?
A. chromosome B. centrosome C. cell membrane D. nucleolus
7. Which process requires the expenditure of cellular energy?
A. passive transport B. active transport
C. osmosis D. di usion
8. Which molecules must be present in order for energy production to occur in the mitochondria of an animal cell?
A. chlorophyll molecules B. carbon dioxide molecules C. lactic acid molecules D. oxygen molecules
9. Select the cell compound, chosen from the list below, which is best described by the following phrase.
Provides energy for biochemical reactions
A. DNA B. Messenger RNA
C. Transfer RNA D. ATP
10. The ribosomes is an organelle that functions in the process of
A. phagocytosis B. pinocytosis C. protein synthesis D. cellular respiration
11. The picture shown illustrates a process by which protein molecules may enter a cell. Structure A is most likely a
A. ribosome B. mitochondrion C. nucleolus D. vacuole
12. Which organelle is present in the cells of a mouse but not present in the cells of a bean plant?
A. cell wall B. chloroplast C. cell membrane D. centriole
13. In which organelles are enzymes for intracellular digestion stored?
A. centrioles B. lysosomes C. nucleoli D. chloroplasts
14. The process of osmosis is best illustrated by the movement of
A. water into root hair cells B. oxygen into red blood cells C. carbon dioxide through stomates D. glucose through phloem
15. Which process requires cellular energy to move molecules across the cell membrane from a region of lower concentration to a region of higher concentration?
A. active transport B. di usion
C. osmosis D. hydrolysis
16. A biologist diluted a blood sample with distilled water. While observing the sample under a microscope, she noted that the red blood cells burst. This bursting is most likely the result of which process?
A. staining B. ingestion
C. osmosis D. active transport
17. The organelle that is the site of cellular respiration is the
A. chloroplast B. nucleus C. mitochondrion D. ribosome
18. Which organelle is the site of aerobic respiration in a maple tree?
A. chloroplast B. mitochondrion
C. vacuole D. ribosome
19. Most cell membranes are composed principally of
A. DNA and ATP B. proteins and lipids C. chitin and starch
D. nucleotides and amino acids
20. Which organelle aids in the maintenance of cell homeostasis by selectively regulating the passage of materials into and out of the cell?
A. plasma membrane B. ribosome
C. lysosome D. nuclear membrane
21. An organelle found in most plant cells, but absent from animal cells, is the
A. contractile vacuole B. centriole C. chloroplast D. Golgi complex
22. A student prepared three di erent red blood cell suspensions as follows:
Suspension Contents
A red blood cells + normal blood serum B red blood cells + 10% salt solution C red blood cells + distilled water Which suspension, when viewed under the microscope, would contain red blood cells that appear wrinkled and reduced in volume?
A. A B. B C. C
23. Which suspension represents the control in this investigation?
A. A B. B C. C
24. Which process is most likely involved in the change in red blood cell volume in this experiment?
A. phagocytosis B. cyclosis
C. osmosis D. hydrolysis
25. Which cell activity is illustrated by the diagrams shown?
A. osmosis B. di usion
C. egestion D. ingestion
26. Red blood cells contain a higher concentration of potassium than the surrounding blood plasma does. This higher concentration is maintained by the process of
A. cyclosis B. osmosis
C. simple di usion D. active transport
27. Which cell organelle is composed of a series of channels throughout the cytoplasm that functions in the transport of molecules?
A. lysosome B. chloroplast C. cell wall
D. endoplasmic reticulum
28. Which substances may pass through a cell membrane by simple di usion?
A. starch and protein B. protein and fat
C. carbon dioxide and water D. carbon dioxide and starch
29. Cell II most likely represents a plant cell due to the presence of
A. A B. B C. E D. F
30. In both cells, the organelles labeled E are the sites of
A. secretion B. starch synthesis C. aerobic respiration D. food storage
31. Which structures are found in every living cell?
A. a plasma membrane and cytoplasm B. chloroplasts and mitochondria C. a cell wall and nucleus D. centrioles and chromosomes
32. Which cellular organelle is represented by the diagram?
A. ribosome B. centriole C. plasma membrane D. cell wall
33. In the diagram of a cell shown, the structure labeled X enables the cell to
A. release energy B. store waste products C. control nuclear division D. manufacture proteins
34. Shown is a green plant cell. The chemical reactions involved in the synthesis of ATP occur in structure
A. A B. B
C. C D. D
35. Shown is a green plant cell. Which structure is chie y composed of a nonliving material known as cellulose?
A. A B. B C. C D. D
36. The early study of cells by Schleiden and Schwann contributed to the formation of the cell theory.
What is the most probable reason that these early biologists never viewed the cell organelles known as ribosomes?
A. Ribosomes cannot be observed unless the cell is stained with iodine.
B. Ribosomes are too small to be seen with early microscopes.
C. Primitive cells did not need to synthesize proteins.
D. The presence of ribosomes can only be detected using a centrifuge.
37. In plant and animal cells, most enzymes involved in aerobic cellular respiration are located
A. throughout the cytoplasm B. within the ribosomes
C. on the endoplasmic reticulum D. within the mitochondria
38. Which cytoplasmic organelles contain hereditary material and can undergo replication?
A. chloroplasts and cell walls B. cell membranes and ribosomes
C. endoplasmic reticula and food vacuoles D. mitochondria and chloroplasts
39. Base your answer(s) to the following question(s) on the equations shown below and on your knowledge of biology.
Equations
In animals, the reaction in equation B occurs in the
A. lysosomes B. chloroplasts C. mitochondria D. ribosomes
40. Which statement is not a part of the cell theory?
A. Cells are the basic unit of structure of living things.
B. Cells are the basic unit of function of living things.
C. Cell parts such as chloroplasts are selfreplicating.
D. Cells come from preexisting cells.
41. Which cell organelle is most directly involved with the bonding of amino acids?
A. mitochondrion
B. endoplasmic reticulum C. cell wall
D. ribosome
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Cell Unit Practice Test #1 03/02/2016 1.Answer: A
2.Answer: A 3.Answer: A 4.Answer: A 5.Answer: B 6.Answer: C 7.Answer: B 8.Answer: D 9.Answer: D 10.Answer: C 11.Answer: D 12.Answer: D 13.Answer: B 14.Answer: A 15.Answer: A 16.Answer: C 17.Answer: C 18.
21.Answer: C 22.Answer: B 23.Answer: A 24.Answer: C 25.Answer: D 26.Answer: D 27.Answer: D 28.Answer: C 29.Answer: D 30.Answer: C 31.Answer: A 32.Answer: C 33.Answer: B 34.Answer: C 35.Answer: D 36.Answer: B 37.Answer: D 38.Answer: D 39.