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Organization and Development of Living Organisms (SC.6.L.14.1,2,3,4 and 5) 1. The diagram below represents a plant cell. Letter X represents a structure in the cell.

1 Organization and Development of Living Organisms (SC.6.L.14.1,2,3,4 and 5) 1. The diagram below represents a plant cell. Letter X represents a structure in the cell. Which structure is represented by X? a. Nucleus b. Cytoplasm c. Cell wall d. Cell membrane 2. Which of the following correctly orders part of a fish s respiratory system from the least complex to most complex? a. Cells -> Gills -> Tissue b. Cells -> Tissue -> Gills c. Gills -> Tissue -> Cells d. Tissue -> Gills -> Cells 3. Euglena is a single-celled photosynthetic organism. Clover is a multicellular green plant. Which of the following activities is carried out by both euglena and clover? a. Using light energy to produce sugar b. Producing sex cells for reproduction c. Moving nutrients to specialized tissues d. Transmitting impulses along nerve pathways 4. Carbon dioxide produced by cells is removed from the body primarily by which body system? a. Digestive b. Excretory c. Immune d. Respiratory 5. Which of the following parts of a plant cell has a function that is most similar to the function of an animal skeleton? a. Cell membrane b. Cell wall c. Chloroplast d. Nucleus

6. The diagram below represents a person cooking eggs on a stove. The person has touched the hot frying pan and pulled his hand away. Which title is the best one for this diagram? a. A human Requires Oxygen to Survive b.

2 6. The diagram below represents a person cooking eggs on a stove. The person has touched the hot frying pan and pulled his hand away. Which title is the best one for this diagram? a. A human Requires Oxygen to Survive b. Metabolism is Influenced by Diet c. All Living Things Require Energy d. A Human Responds to a Stimulus 7. Which process in an apple tree primarily results from cell division? a. Growth b. Photosynthesis c. Gas exchange d. Waste removal 8. An illustration of a bacterium is shown below. Based on the illustration below, which of the following can be concluded about the bacterium? a. It is unable to move. b. It is made up of one cell. c. It is the same as a vacuole. d. It is missing genetic material.

3 9. Muscle cells need to quickly convert energy from food molecules into a usable form. For this reason, which of the following do muscle cells have in greater numbers than most other types of cells? a. Chromosomes b. Mitochondria c. Nuclei d. Vacuoles 10. The human respiratory system is responsible for removing a. Fat from cells b. Carbon dioxide from the blood c. Hormones from glands d. Nutrients from food 11. Chloroplasts are found only in organisms that are able to a. Generate their own energy b. Grow to a larger size c. Migrate to other ecosystems d. Hunt for prey 12. Organisms that require oxygen must transfer molecules of oxygen from their environment to their cells. In humans, which two systems are directly involved in the transfer of oxygen from the environment to their cells? a. Circulatory and nervous b. Respiratory and digestive c. Digestive and nervous d. Respiratory and circulatory 13. A student viewing a cell with a microscope observes a cell wall, cell membrane and a nucleus. The presence of these structures indicates that the student is looking at a cell from a a. Rabbit b. Fly c. Worm d. Carrot 14. Which sequence correctly shows the levels of organization for structure and function in a human? a. Cell tissue organ organ system b. Organ system cell tissue organ c. Tissue organ organ system cell d. Cell organ tissue organ system

15. To stay alive your body must maintain a constant state of internal conditions. Your body temperature must not vary by more than a few degrees, the ph of your blood must be kept between 7.35 and 7.

These functions are all part of a mechanism that allows the body to maintain a balance between itself and the environment. What is that mechanism called? a. Homeostasis b. Metabolism c. Osmosis d.

4 15. To stay alive your body must maintain a constant state of internal conditions. Your body temperature must not vary by more than a few degrees, the ph of your blood must be kept between 7.35 and 7.45, and the glucose level in your body must be maintained within a small range. These functions are all part of a mechanism that allows the body to maintain a balance between itself and the environment. What is that mechanism called? a. Homeostasis b. Metabolism c. Osmosis d. diffusion 16. Which table correctly describes the functions of the cell structures listed? a. c. b. d. 17. In the 1800s two scientists, Theodor Schwann and Matthias Schleiden, studied different types of organisms. After many years of studying a great variety of organisms, they drew similar but independent conclusions about their observations. What statement was developed most directly from these conclusions and is part of the modern cell theory? a. The functions of living things occur in cells. b. Cells exist only in multicellular organisms. c. Living things are composed of cells. d. Cells contain hereditary information

5 18. An organism that contains chloroplasts is able to produce food by the process of a. Photosynthesis b. Reproduction c. Respiration d. Digestion 19. The diagrams below represent two cells. Letter A represents a part of each cell. Which part of the cell is labeled A in both diagrams? a. Cell wall b. Chromosomes c. Cytoplasm d. Nucleus 20. Which process is responsible for the growth and repair of human tissue? a. Evolution b. Germination c. Cell division d. Natural selection 21. All living and nonliving material is composed of a. Air b. Atoms c. Soil d. Water 22. A green plant absorbs light. A frog eats flies. These are both examples of how organisms a. Escape predators b. Obtain energy c. Produce offspring d. Excrete waste

6 23. The diagram below represents four organisms. How many of the organisms represented are multicellular? a. One b. Two c. Three d. Four 24. A body cell that is undergoing abnormal cell division is most likely a. Producing sex cells b. Transporting nutrients c. Forming cancerous cells d. Developing an infection 25. Three different human cells are shown below. Which process occurs in all of these cells? a. Metamorphosis b. Locomotion c. Reproduction d. Photosynthesis

Cell Theory Levels of Organization Cell Parts - Homeostasis

Cell Theory Levels of Organization Cell Parts - Homeostasis Homeostasis - maintenance of internal stable conditions in a constantly changing environment that are necessary for life's functions Maintaining