Question

ex 4 ryk a cellular structure select the name of the cell structure that fits the description: note you need your lab manual as the table below does not have complete sentences 1. short hair like projections... 2. intracellular fluid 3. site of energy production... 4. site of protein synthesis... 5. site of steroid and fatty acid... 6. small vesicle with digestive... 7. organelles needed to... 8. thread like strand of dna... 9. site of secretory and membrane 10. site where protein products... 11. contains dna that control... 12. site of ribosome synthesis. 13. gives the cell shape, support... 14. controls movement of substances... 15. folds of the plasma membrane that increase... 16. detoxifies harmful substances 17. double membrane that separates... 18. a small membranous sac that...

Explanation:

1. Cilia are short hair - like projections on the cell surface for movement or sensory functions.
2. Cytosol is the intracellular fluid that contains various molecules and is the site of many metabolic reactions.
3. Mitochondria are the power - houses of the cell, the site of energy production through cellular respiration.
4. Ribosomes are the organelles where protein synthesis occurs.
5. The smooth endoplasmic reticulum (smooth ER) is involved in the synthesis of steroids and fatty acids.
6. Lysosomes are small vesicles with digestive enzymes to break down waste materials.
7. Centrioles are organelles needed for cell division (spindle fiber formation).
8. Chromatin is the thread - like strand of DNA and associated proteins.
9. The Golgi apparatus is the site of secretory and membrane protein modification.
10. The rough endoplasmic reticulum (rough ER) is the site where protein products are synthesized and modified.
11. The nucleus contains DNA that controls cellular activities.
12. The nucleolus is the site of ribosome synthesis.
13. The cytoskeleton gives the cell shape and support.
14. The cell membrane controls the movement of substances in and out of the cell.
15. Microvilli are folds of the plasma membrane that increase surface area.
16. The smooth ER also detoxifies harmful substances.
17. The nuclear envelope is a double - membrane that separates the nucleus from the cytoplasm.
18. Vesicles are small membranous sacs that transport materials within the cell.

Answer:

1. Lysosomes
2. Centrioles
3. Chromatin
4. Golgi apparatus
5. Rough ER
6. Nucleus
7. Nucleolus
8. Cytoskeleton
9. Cell membrane
10. Microvilli
11. Smooth ER
12. Nuclear envelope
13. Vesicles