The image provided is a diagram of an animal cell, and the task is to label the various parts of the cell. Below is the solution with explanations for each labeled part:
Solution:
1.
Nucleus (1)
- The nucleus is the control center of the cell. It contains the cell's DNA and is responsible for regulating gene expression and controlling cellular activities.
2.
Nuclear Envelope (2)
- The nuclear envelope is a double membrane that surrounds the nucleus, separating it from the cytoplasm. It has pores that allow the passage of molecules like RNA and proteins.
3.
Endoplasmic Reticulum (ER) (3)
- The endoplasmic reticulum is a network of membranous tubules and sacs involved in protein synthesis and transport. There are two types:
-
Rough ER: Covered with ribosomes, involved in protein synthesis.
-
Smooth ER: Lacks ribosomes, involved in lipid synthesis and detoxification.
4.
Golgi Apparatus (4)
- The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other parts of the cell. It is often depicted as a stack of flattened sacs.
5.
Cell Membrane (5)
- The cell membrane is a phospholipid bilayer that regulates the movement of substances in and out of the cell. It is also known as the plasma membrane.
6.
Mitochondrion (6)
- Mitochondria are the powerhouses of the cell. They produce energy in the form of ATP through cellular respiration.
7.
Lysosome (7)
- Lysosomes are membrane-bound organelles containing digestive enzymes. They break down waste materials and cellular debris.
8.
Vacuole (8)
- Vacuoles are storage organelles that hold water, nutrients, and waste products. In plant cells, they are larger and more prominent, but in animal cells, they are smaller.
9.
Cytoskeleton (9)
- The cytoskeleton is a network of protein filaments (microtubules, microfilaments, and intermediate filaments) that provides structural support, maintains cell shape, and aids in intracellular transport.
10.
Ribosomes (10)
- Ribosomes are small structures where protein synthesis occurs. They can be free-floating in the cytoplasm or attached to the rough ER.
11.
Centrioles (11)
- Centrioles are cylindrical structures found near the nucleus. They play a crucial role in cell division by organizing the mitotic spindle during mitosis.
Final Answer:
1. Nucleus
2. Nuclear Envelope
3. Endoplasmic Reticulum (ER)
4. Golgi Apparatus
5. Cell Membrane
6. Mitochondrion
7. Lysosome
8. Vacuole
9. Cytoskeleton
10. Ribosomes
11. Centrioles
Boxed Final Answer:
\[
\boxed{
\begin{array}{ll}
1. & \text{Nucleus} \\
2. & \text{Nuclear Envelope} \\
3. & \text{Endoplasmic Reticulum (ER)} \\
4. & \text{Golgi Apparatus} \\
5. & \text{Cell Membrane} \\
6. & \text{Mitochondrion} \\
7. & \text{Lysosome} \\
8. & \text{Vacuole} \\
9. & \text{Cytoskeleton} \\
10. & \text{Ribosomes} \\
11. & \text{Centrioles} \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of label the cell worksheet.
