7th Grade Science Page - Home
|Cells: End of Year Review [518050] |
|Student | |
|Class | |
|Date | |
|1. |A student draws a picture of an amoeba. |
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| |[pic] |
| |What do an amoeba and a human have in common? |
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| |A. |
| |a heart |
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| |B. |
| |a spine |
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| |C. |
| |lungs |
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| |D. |
| |cells |
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|2. |Two different organisms are shown. |
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| |[pic] |
| |What is the primary way the amoeba is different from the sunflower? |
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| |A. |
| |The amoeba is made of one cell. |
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| |B. |
| |The amoeba has limited respiration. |
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| |C. |
| |The amoeba can produce its own food. |
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| |D. |
| |The amoeba has organs that work together to form systems. |
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|3. |The volvox is a type of green alga that lives in freshwater ponds. Each spherical alga is actually a colony consisting of up to 20,000|
| |cells. |
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| |[pic] |
| |A colony of volvox behaves like one single organism, with an anterior and posterior end. In one of the regions, the eyespots are more |
| |developed. This helps the colony swim toward a light source. How is the volvox similar to a multicellular organism? |
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| |A. |
| |The cells provide structural support to the whole colony. |
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| |B. |
| |The thousands of cells making up the colony have identical characteristics. |
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| |C. |
| |The individual groups of cells within the colony perform different functions. |
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| |D. |
| |The cells in the colony are all capable of photosynthesis and can make food. |
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|4. |Which of these is an organism that is unicellular? |
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| |A. |
| |virus |
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| |B. |
| |amoeba |
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| |C. |
| |mushroom |
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| |D. |
| |ant |
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|5. |Two organisms are shown in the diagram below. |
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| |[pic] |
| |The arrows in the diagram indicate structures that help these organisms |
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| |A. |
| |move through their environments. |
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| |B. |
| |detect changes in their environments. |
| | |
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| |C. |
| |obtain nutrients from their environments. |
| | |
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| |D. |
| |exchange gases with their environments. |
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|6. |A paramecium is an example of |
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| |A. |
| |a single-celled organism. |
| | |
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| |B. |
| |multiple organisms. |
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| | |
| |C. |
| |an inorganic substance. |
| | |
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| |D. |
| |a group of cells. |
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|7. |One picture shows heart muscle cells from a human, and the other picture shows a single-celled organism. |
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| |[pic] |
| |One difference between these cells is that human heart muscle cells |
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| |A. |
| |take in oxygen from their environment. |
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| | |
| |B. |
| |depend on other cells in the body. |
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| |C. |
| |control cell functions from a nucleus. |
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| |D. |
| |can change shape in order to move. |
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|8. |A student compares a plant cell to an animal cell. Which structure will the student find ONLY in the plant cell? |
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| |A. |
| |chloroplast |
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| |B. |
| |organelles |
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| |C. |
| |mitochondria |
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| |D. |
| |cytoplasm |
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|9. |In which organism can cell walls be found? |
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| |A. |
| |moth |
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| |B. |
| |grass |
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| |C. |
| |snake |
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| |D. |
| |hawk |
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|10. |Which one of these is not a characteristic of an animal? |
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| |A. |
| |obtains energy by consuming other organisms |
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| |B. |
| |is multicellular with cells that have cell walls |
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| |C. |
| |takes in oxygen and releases carbon dioxide |
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| |D. |
| |is able to grow new cells to replace damaged cells |
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|11. |A diagram of a plant cell is shown. |
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| |[pic] |
| |A leak in a structure of a plant cell resulted in waste materials moving into the cytoplasm of the cell. Which structure most likely|
| |had the leak? |
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| |A. |
| |1 |
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| |B. |
| |2 |
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| |C. |
| |3 |
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| |D. |
| |4 |
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|12. |Which structures are common to both plant and animal cells? |
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| |A. |
| |vacuole, chloroplast, nucleus |
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| |B. |
| |cell membrane, nucleus, mitochondrion |
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| |C. |
| |nucleus, cell wall, cell membrane |
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| |D. |
| |mitochondrion, vacuole, cell wall |
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|13. |What is the main function of the cell wall in a plant cell? |
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| |A. |
| |to protect against disease |
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| |B. |
| |to give structural support |
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| |C. |
| |to contain the parts of the cell |
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| |D. |
| |to help with cell division |
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|14. |Which of these can only be found in a plant cell? |
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| |A. |
| |a nucleus |
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| |B. |
| |a vacuole |
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| |C. |
| |a chloroplast |
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| |D. |
| |a mitochondrion |
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|15. |The basic units of structure and function for both plants and animals are |
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| |A. |
| |cells. |
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| |B. |
| |organs. |
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| |C. |
| |systems. |
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| |D. |
| |tissues. |
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|16. |Which of these structures in a plant cell allows a plant to make food? |
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| |A. |
| |cell wall |
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| |B. |
| |cytoplasm |
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| |C. |
| |chloroplast |
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| |D. |
| |chromosomes |
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|17. |The cells of a plant help the plant maintain its life functions. What part of a plant cell has the function of producing sugar in |
| |the presence of sunlight? |
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| |A. |
| |chloroplast |
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| |B. |
| |cytoplasm |
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| |C. |
| |mitochondria |
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| |D. |
| |nucleus |
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|18. |Which of the following allows materials to enter and leave a cell? |
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| |A. |
| |cell wall |
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| |B. |
| |mitochondria |
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| |C. |
| |vacuole |
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| |D. |
| |cell membrane |
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|19. |Which function makes a plant cell different from an animal cell? |
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| |A. |
| |ability to use energy |
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| |B. |
| |ability to absorb nutrients |
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| |C. |
| |ability to divide into two cells |
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| |D. |
| |ability to convert sunlight into energy |
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|20. |Which of these must be absorbed by animal cells in order to grow? |
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| |A. |
| |genes |
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| |B. |
| |sunlight |
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| |C. |
| |nutrients |
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| |D. |
| |chromosomes |
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|21. |Which of these could only be found inside a plant cell? |
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| |A. |
| |nucleus |
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| |B. |
| |chloroplasts |
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| |C. |
| |mitochondria |
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| |D. |
| |cytoplasm |
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|22. |Cells take in food for energy. The part of the cell that aids in digestion of the food is the lysosome. What is the main role of |
| |lysosomes in the process of food digestion? |
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| |A. |
| |building proteins |
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| |B. |
| |breaking down wastes |
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| |C. |
| |controlling the activities of the cell |
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| |D. |
| |converting energy from one form into another |
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|23. |Similar types of cells form tissues. What is the next level of complexity formed from the grouping of tissues? |
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| |A. |
| |organs |
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| |B. |
| |organelles |
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| |C. |
| |organisms |
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| |D. |
| |organ systems |
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|24. |Ritchie was investigating different types of cells. He read how the long dendrites of this cell enable it to send and receive |
| |messages quickly. |
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| |[pic] |
| |Which type of cell does this diagram most likely represent? |
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| |A. |
| |a red blood cell |
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| |B. |
| |a muscle cell |
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| |C. |
| |a nerve cell |
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| |D. |
| |a heart cell |
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|25. |The human brain is an organ that is made up of many tissues. This information can be used to determine that the brain is |
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| |A. |
| |unicellular. |
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| |B. |
| |multicellular. |
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| |C. |
| |part of a bacterial colony. |
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| |D. |
| |able to function independently. |
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|26. |Where do many of the basic life functions take place in organisms? |
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| |A. |
| |brain |
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| |B. |
| |cells |
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| |C. |
| |heart |
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| |D. |
| |nerves |
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|27. |Which of these is true of algae, bacteria, and flowering plants? |
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| |A. |
| |They are inorganic. |
| | |
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| |B. |
| |They all have chlorophyll. |
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| |C. |
| |They are composed of cells. |
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| |D. |
| |They all feed off other organisms. |
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|28. |Miranda learned how the human body carries out life functions. Which is the most basic level of organization in the human body? |
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| | |
| |A. |
| |an organ |
| | |
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| |B. |
| |a system |
| | |
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| |C. |
| |a tissue |
| | |
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| |D. |
| |a cell |
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|29. |Stewart studied the parts of a flowering plant. |
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| |[pic] |
| |How are all the parts of the plant similar to each other? |
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| |A. |
| |They all attract bees. |
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| |B. |
| |They are all made of cells. |
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| |C. |
| |They all make food for the plant. |
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| |D. |
| |They all give support to the plant. |
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|30. |Sometimes the shape of a cell gives clues to its function. Which cell most likely has the function of transmitting information |
| |through the human body? |
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| |A. |
| |[pic] |
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| |B. |
| |[pic] |
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| |C. |
| |[pic] |
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| |D. |
| |[pic] |
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|31. |The diagrams identify major parts of two different human systems. |
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| |[pic] |
| |Which statement best describes how the two systems are similar? |
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| |A. |
| |Both systems provide structure to the body. |
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| |B. |
| |Both systems contain specialized cells and tissues. |
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| |C. |
| |Both systems assume the functions of other failing body parts. |
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| |D. |
| |Both systems establish homeostasis and communication. |
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