Biology Chapter 7 Review: Cells, Organisms, and Organelles

1. Biology Chapter 7 Review

2. ________________cells do not contain a nucleus. • eukaryotic • prokaryotic • plant • animal prokaryotic

3. If a cell of an organism contains a nucleus, the organism is a(n)____________. • eukaryote • prokaryote • plant • animal eukaryote

4. Despite differences in shape and size, all cells have cytoplasm and a _____________. • cell wall • mitochondrion • cell membrane • nucleus cell membrane

5. All living things are made up of________________. • bones • blood • cells • elements cells

6. All cells come from _________. • cells that already exist • the soil • water • space cells that already exist

7. Photosynthesis takes place in the _____________ in plant cells. • cell wall • chloroplast • mitochondria • nucleus chloroplast

8. . Which of the following controls what enters and leaves the cell? • mitochondria • cell membrane • nucleus • vacuole cell membrane

9. In many cells, the structure that controls the cell’s activities is the__________. • cell membrane • nucleolus • organelle • nucleus nucleus

10. Which organelle converts the chemical energy in food into a form that cells can use? • nucleolus • mitochondria • chromosomes • chloroplast mitochondria

11. Threadlike structures that contain genetic information are called ___________. • ribosomes • nuclei • chromosomes • mitochondria chromosomes

12. This organelle translates information from RNA into proteins. • ribosome • mitochondria • chromosome • chloroplast ribosome

13. Cell membranes are made mainly of ________. • protein pumps • carbohydrate gates • lipid bilayers • free moving proteins lipid bilayers

14. The movement of water molecules across a selectively permeable membrane is called ______________. • exocytosis • endocytosis • phagocytosis • osmosis osmosis

15. A substance that moves across a cell membrane without using energy moves ____________. • from low concentration to high concentration • from high concentration to low concentration • away from equilibrium • does not move • from high concentration to low concentration

16. . This organelle contains digestive enzymes that break down molecules and cell parts when they are no longer needed • lysosome • vacuole • golgi body • endoplasmic reticulum lysosome

17. Which statement best describes the result of placing a cell into a concentrated sugar solution. • water moved into the cell • water moved out of the cell • protein synthesis begins • sugar moved out of the cell water moved out of the cell

18. What is the gelatin like substance between the nucleus and the cell membrane called? • ribosome • chloroplast • endoplasmic reticulum • cytoplasm cytoplasm

19. . The ______transports proteins and other molecules to different parts of the cell. • vacuole • ribosome • nucleus • endoplasmic reticulum endoplasmic reticulum

20. ____ is when the concentration of a solute is the same throughout a system. • equilibrium • diffusion • facilitated diffusion • active transport equilibrium

21. A substance that moves across a cell membrane without using energy tends to move • away from the area of equilibrium • away from the area where it is less concentrated • away from the area that is more concentrated • toward the area where it is more concentrated

22. Review your plant and animal cell diagrams. They will be on the test.