Tour of a Plant Cell Structures and Functions

ch 7, 8 and 9 9 of 51 Tour of a Plant Cell: Structures and Functions Plant cells have many of the same structures found in animal cells, but plant cells also have unique structures that suit their functions as sugar producers. Before beginning this tutorial, watch the Tour of a Plant Cell animation. Part A - Comparing plant cells and animal cells Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures. In this activity, you will indicate which cell structures are found only in plant cells, only in animal cells, or in both plant and animal cells. Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin. Hint 1. Review of animal cell structures To review animal cell structures, watch the Tour of an Animal Cell animation. Hint 2. Which structures are unique to plant cells? Plant cells have unique structures that function in photosynthesis. In addition, plant cells have other structures not found in animal cells that function in support and storage. Which cell structures are unique to plant cells? Select the three that apply. ANSWER: 6/13/2019, 11:24 AM ch 7, 8 and 9 10 of 51 chloroplast endoplasmic reticulum mitochondrion lysosome central vacuole cellulose cell wall ANSWER: Reset Help 6/13/2019, 11:24 AM ch 7, 8 and 9 11 of 51 Part B - Plant organelle functions Drag the correct description under each cell structure to identify the role it plays in the plant cell. Hint 1. Structure and function of cell organelles The structure of each organelle in a eukaryotic cell makes it very well-suited for the task it performs. Some examples are described here. Golgi apparatus: The Golgi is composed of a series of flattened membranous discs called cisternae. Each cisterna forms an enclosed space that houses a distinct set of enzymes used to process proteins in a sequential manner as they are prepared for transport to different sites. Mitochondria: The inner membrane of a mitochondrion has extensive infoldings, which greatly increase the surface area available for key reactions in the energy-producing processes of cellular respiration. ANSWER: 6/13/2019, 11:24 AM ch 7, 8 and 9 12 of 51 Reset Help Part C - Structure and function of the chloroplast The structure of a chloroplast is closely tied to its function as the site of photosynthesis. Some of the following statements are true for chloroplasts; others are true for mitochondria. Which statements are true for chloroplasts? Select the three that apply. Hint 1. The role of chlorophyll In order for chloroplasts to carry out photosynthesis, they need pigments that can absorb light energy from the sun. One important chloroplast pigment is chlorophyll, which absorbs light in the red and blue parts of the spectrum. Chlorophyll is the reason plants appear green. Hint 2. How does chloroplast structure compare to mitochondrion structure? Mitochondria and chloroplasts are similar in structure, but they also have key differences related to their respective functions in the cell. Drag each label to the appropriate bin. If a structure is found in both chloroplasts and mitochondria, drag it to the "both" bin. ANSWER: 6/13/2019, 11:24 AM ch 7, 8 and 9 13 of 51 Reset Help ANSWER: They are the sites of reactions that convert chemical energy from food molecules to ATP. They contain the green pigment chlorophyll. They have membranous sacs called thylakoids that are surrounded by a fluid called stroma. They are the sites of reactions that convert solar energy into chemical energy. Their inner membrane has infoldings called cristae. Their matrix contains enzymes that function in cellular respiration. 6/13/2019, 11:24 AM