Digests molecules and old organelles

Complete the following and submit the Word document by midnight Sunday. Remember to include complete citations for all sources used to answer each question.

1. Using the illustration below, indicate which answer is in the direction of water movement.

a. Water will move into the cell. b. Water will move out of the cell. c. There will be equal amounts of water moving in and out of the cell. d. No movement.

2. The ribosomes are made in which cellular structure in the eukaryotic cell. _____

a. Rough endoplasmic reticulum b. Ribosobium complex c. Nucleolus d. Smooth endoplasmic reticulum e. Nucleus

3. Which of the following is not a major component of the plasma membrane? _____

a. phospholipids b. glycoproteins c. proteins d. DNA

4. The rough endoplasmic reticulum is the area in a cell where _______________ are synthesized.

5. The chloroplast functions in _________

a. lipid storage b. protein synthesis c. photosynthesis d. DNA replication

6. Cell membranes are made of two phospholipid layers called a ___

a. bilayer b. hydrophilic c. polarity d.semilayer

7. The nucleus is surrounded by a double layer membrane called the

a. nuclear matrix b. nuclear envelope c. cell membrane d. nucleus wall

8. Not all substances can cross the cell membrane, for this reason, the cell membrane is said to be ________

a. a barrier b. selectively permeable c. membrane bound d. a cell wall

9. The cell organelle that processes and packages for export substances produced by the cell is __

a. mitochondria b. ribosomes c. Golgi apparatus d. ER

10. The cell organelle that digests molecules, old organelles, and foreign substances is the ____.

a. mitochondria b. ER c. Golgi apparatus d. lysosomes

11. Organelle involved in the synthesis of steroids in glands and the breakdown of toxic waste:

a. soft ER b. smooth ER c. rough ER d. mitochondria

12.The part of the cell that regulates movement of substances into and out of the cell is the

a. nucleus b. cell membrane c. Golgi apparatus d. mitochondrion

13. Cells that have high energy requirement generally have many ______.

a. nuclei b. flagella c. mitochondria d. microfilaments

14. Suspended in the eukaryotic cell's cytosol are tiny ____.

a. flagella b. organelles c. DNA d. nucleolus

15. Organelle that transfers energy from organic compounds to ATP: _____

a. mitochondria b. ribosomes c. lysosomes d. nucleus

16. Organelle that converts sunlight, carbon dioxide and water into sugars: _____

a. ribosomes b. lysosomes c. chloroplasts d. vacuole

17. The fluid mosaic model presents the modern view of _____

a. a membrane's structure b. chromosomes c. aggregates of cells d. the nucleus

18. Which is not a principle of the cell theory? _____

a. All matter consists of at least one cell. b. Cells are the basic units of life. c. All cells arise from preexisting cells. d. All organisms are made of one or more cells.

19. A cell membrane is a thin layer of lipid and _____.

a. monosaccharides b. protein c. chitin d. water

20. Immerse a living cell in a isotonic solution, and water will tend to

a. diffuse into the cell. b. diffuse out of the cell. c. show no net movement. d. move in by endocytosis.

21. Sodium ions cross a membrane at transport proteins that receive an energy boost. This is a case of

a. passive transport. b. active transport. c. facilitated diffusion. d. a and c.

22. Demonstrate your understanding of the three main types of cells we’ve learned about this unit by completing the following table:

Type

Bacteria

Plant Cell

Animal Cell

Prokaryotic or eukaryotic?

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Cell wall (Yes or No)

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Cell membrane (Yes or No)

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Nucleus (Yes or No)

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Chromosomes (Yes or No)

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Cilia and flagella (Yes or No)

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Mitochondria (Yes or No)

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Chloroplasts (Yes or No)

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Performs cellular respiration (Yes or No)

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