Smooth ER Microvilli Golgi apparatus Rough ER Mitochondrion Centrosome Ribosomes Peroxisome Nucleus Cytoskeleton Lysosome Endoplasmic reticulum (ER) Plasma membrane

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Cell Structure and Function**

The provided image is a detailed diagram of an animal cell, labeled with various organelles. Below is a description of each labeled part to help students understand the structure and function of the cell.

1. **Smooth Endoplasmic Reticulum (Smooth ER):**
   - An organelle responsible for lipid synthesis and detoxification of drugs and poisons.

2. **Microvilli:**
   - Small, finger-like projections from the cell surface that increase surface area for absorption.

3. **Golgi Apparatus:**
   - A series of stacked membranes that modify, sort, and package proteins and lipids for storage or transport out of the cell.

4. **Rough Endoplasmic Reticulum (Rough ER):**
   - Studded with ribosomes, it is involved in protein synthesis and production.

5. **Mitochondrion:**
   - The powerhouse of the cell, involved in energy production through cellular respiration.

6. **Centrosome:**
   - A structure involved in organizing microtubules and regulating the cell division cycle.

7. **Ribosomes:**
   - Small structures either floating freely in the cytoplasm or attached to the Rough ER, they are the site of protein synthesis.

8. **Peroxisome:**
   - Organelles containing enzymes to break down fatty acids and detoxify harmful substances.

9. **Nucleus:**
   - The control center of the cell, containing genetic material (DNA) and responsible for regulating all cell activities.

10. **Cytoskeleton:**
    - A network of fibers (microtubules, actin filaments, and intermediate filaments) that maintain the cell’s shape, secure organelles in specific positions, and allow the cell to move.

11. **Lysosome:**
    - Small organelles filled with enzymes that digest cellular waste and pathogens.

12. **Endoplasmic Reticulum (ER):**
    - A network of membranes involved in protein and lipid synthesis. There are two types: Rough ER (with ribosomes) and Smooth ER (without ribosomes).

_This diagram is an essential study tool for understanding the complex inner workings of eukaryotic cells, especially animal cells._
Transcribed Image Text:**Cell Structure and Function** The provided image is a detailed diagram of an animal cell, labeled with various organelles. Below is a description of each labeled part to help students understand the structure and function of the cell. 1. **Smooth Endoplasmic Reticulum (Smooth ER):** - An organelle responsible for lipid synthesis and detoxification of drugs and poisons. 2. **Microvilli:** - Small, finger-like projections from the cell surface that increase surface area for absorption. 3. **Golgi Apparatus:** - A series of stacked membranes that modify, sort, and package proteins and lipids for storage or transport out of the cell. 4. **Rough Endoplasmic Reticulum (Rough ER):** - Studded with ribosomes, it is involved in protein synthesis and production. 5. **Mitochondrion:** - The powerhouse of the cell, involved in energy production through cellular respiration. 6. **Centrosome:** - A structure involved in organizing microtubules and regulating the cell division cycle. 7. **Ribosomes:** - Small structures either floating freely in the cytoplasm or attached to the Rough ER, they are the site of protein synthesis. 8. **Peroxisome:** - Organelles containing enzymes to break down fatty acids and detoxify harmful substances. 9. **Nucleus:** - The control center of the cell, containing genetic material (DNA) and responsible for regulating all cell activities. 10. **Cytoskeleton:** - A network of fibers (microtubules, actin filaments, and intermediate filaments) that maintain the cell’s shape, secure organelles in specific positions, and allow the cell to move. 11. **Lysosome:** - Small organelles filled with enzymes that digest cellular waste and pathogens. 12. **Endoplasmic Reticulum (ER):** - A network of membranes involved in protein and lipid synthesis. There are two types: Rough ER (with ribosomes) and Smooth ER (without ribosomes). _This diagram is an essential study tool for understanding the complex inner workings of eukaryotic cells, especially animal cells._
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