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Year 7 Cells Topic Test SECTION I – Multiple choice (10 marks) SECTION II – True or False (5 marks) Time allowed: 40 minutes SECTION III – Cloze passage (10 marks) Total marks: 60 marks SECTION IV – Short answer (35 marks) _______________________________________________________________________________________ SECTION I - MULTPLE CHOICE 1). The activities of a cell are directed by the: a. membrane b. chloroplast c. nucleus d. vacuole An instrument used to observe a cell is called a: a. magnifying glass b. spectroscope c. slide d. microscope Wastes and water inside a cell are stored in the: a. membrane b. chloroplast c. nucleus d. vacuole The part of the plant cell that contains cellulose is the: a. membrane b. cell wall c. chloroplast d. mitochondria If you used a x15 eyepiece and a x10 objective, the magnification of the group of cells you were looking at would be: a. x 100 b. x 200 c. x 300 d. x 150 When viewing a cell under a microscope, staining is often used to assist with observations. The main benefit of staining is: a. it improves the colour, making it more interesting. b. it improves the contrast, making the cell and its features stand out more c. it slows down the movement in living cells, making observation easier d. it increases the size of cells, making them easier to see 2). 3). 4). 5). 6). 7). About 150 years ago the cell theory was proposed. Which of the following statements regarding the cell theory is CORRECT? a. all living things are made up of one or more cells b. new cells are created by old cells dividing c. all cells are similar to each other but not identical d. all of the above Which of the following structures is found in both plant AND animal cells? a. chloroplast b. cell wall c. cell membrane d. large vacuole Which of the following types of cell is a plant cell? a. sperm cell b. red blood cell c. root hair cell d. nerve cell 8). 9). 10). Which structure controls what enters and leaves the cell? a. cell wall b. cell membrane c. nucleus d. cytoplasm SECTION II - TRUE OR FALSE Answer True or False for the following. (1 mark each) 11). Animal cells have a chloroplast. 12). Both animal and plant cells have a cell wall. 13). The cell membrane controls what enters and leaves a cell. 14). Multicellular organisms are made up of only one cell. 15). There are only harmful bacteria. SECTION III - CLOZE PASSAGE Complete the following sentence (on your answer paper), using the words below. Each word can only be used once. cells light multicellular stereo right wall magnifcation chlorophyll microscopes objective lens shape size 16). All living things are made up of ____________. 17). _______________ are used in the observation and investigation of cells. 18). When you look down the microscope and move the slide to the ____________, what you see moves to the left. 19). Some cells have a boundary around the cell membrane called the cell ____________. 20). ____________ organisms are made up of many cells with different types of cells doing different jobs. 21). A ___________ microscope allows you to use both eyes. 22). Cells within an organism differ in their ________ and ________. 23). Chloroplasts contain the green pigment ___________ which is used in photosynthesis. 24). Light microscopes function by allowing _________ to pass through the specimen to reach your eye. 25). The two lenses that determine the ________ of your microscope are the eyepiece lens and the ____________ ________. SECTION IV - SHORT ANSWER 26). Write a sentence about the first word using the other two. (5 marks) a). Cells b). Tissue c). Nucleus d). Organism magnify similar control animals microscope group centre plants e). Unicellular single cell 27). Label the parts of the animal cell below. (3 marks) 28). Label the parts of the plant cell below. (6 marks) 29). Describe the correct way to focus a microscope, by numbering the following steps in the correct order. (3 marks) ______ Move the stage clips into place to secure the slide. ______ Increase objective lens and fine focus. ______ Turn the lamp on. ______ Turn objective lens to lowest power. ______ Place the slide on the stage ______ Slowly turn coarse adjustment to focus. 30). Explain the function (job) of the following organelles: (4 marks) (a). Cytoplasm. (b). Cell membrane (c). Nucleus. (d). Cell wall 31). Complete the sentence.: In 1665 Robert Hooke used the term “cell” for the first time to describe the tiny box-like units in a thin slice of _______________. (1 marks) 32). Describe the steps how you would prepare an onion skin slide for viewing under the microscope. (2 marks) 33). Label the parts of the microscope, using the words below. (9 marks) clips objective lens mirror (or light) fine focus arm stage base coarse focus eye piece 34). Viruses are extremely small objects that have some cell-like qualities and some characteristics that are similar to non-living matter. Describe how viruses reproduce. (2 marks) Some extra questions to add if needed. 12. Determine the total magnification (resolving power) of the following combination of lenses. Eyepiece (Ocular) X10 X10 X10 Objective X4 X10 X40 Total Magnification 11). Both plant and animal cells are filled with a jellylike substance called; a. cytoplasm b. vacuole c. nucleus d. cell membrane What part of the cell makes proeins? a. ribosomes b. mitochondria c. lysosomes d. vacuole What part of the cell serves to process, package and export proteins? a. mitochondria b. endoplasmic reticulum c. nucleus d. golgi apparatus 13). 14).