Section Reviews and Chapter Review Chapter 1 Cells Section Reviews and Chapter Review

1-2 1.) In your own words, write a definition for ribosome, lysosome, and cell wall. A ribosome is an organelle without a membrane that makes proteins from amino acids. A lysosome is a special kind of vesicle that contains enzymes to break down worn out organelles. The cell wall is the outer most layer of plant, algae and fungal cells

2.) Which of the following are found mainly in animal cells?. 1-2 2.) Which of the following are found mainly in animal cells?. A.) mitochondria B.) lysosomes C.) ribosomes D.) Golgi complex

1-2 3.) What is the definition of a Golgi Complex? What is the function of the endoplasmic reticulum? The Golgi complex is a system of closed off smooth ER that stores and packages proteins for the cell. The ER is a system of passageways that moves substances such as lipids and proteins around the cell.

1-2 4.) Making Comparisons: Describe three ways in which a plant cell is different from an animal cell. A plant cell has a cell wall and chloroplasts while an animal cell does not. A plant cell usually has a large vacuole instead of the many small lysosomes that would be found an animal cell.

5.) Applying Concepts: Every cell needs ribosomes. Explain why? 1-2 5.) Applying Concepts: Every cell needs ribosomes. Explain why? Every cell needs ribosomes because ribosomes make proteins. Most of the organelles of a cell are made of these proteins that are essential for life.

1-2 6.) Predicting consequences: A certain virus attacks the mitochondria of cells. What would happen to a cell if al of its mitochondria were destroyed? The cell would die due a lack of energy, because the mitochondria are the source of a cells energy.

1-2 7.) Expressing Opinions: Do you think that having chloroplasts gives plant cells an advantage over animal cells? Support your opinion. Having chloroplasts is definitely an advantage that plants have over animals. Chloroplasts allow plants to produce their own food from water, carbon and sunlight. Animals need to consume other organisms in order to survive.

1-2 8.) Is this a diagram of a plant cell or animal cell? Explain how you know. This is an example of an animal cell because there is no cell wall and there are numerous mitochondria.

9.) What organelle does letter “b” refer to? 1-2 9.) What organelle does letter “b” refer to? a “b” is the… Golgi complex “a” is the… Mitochondria “c” is the… nucleus b c