Based on the detailed analysis of the animal cell diagram and matching each numbered structure to its corresponding functional description in the worksheet, here is the complete solution:
1.
Nucleolus - Facilitates ribosome biogenesis. (Structure ① is the dense region inside the nucleus).
2.
Nucleus - Contains the majority of the cell's DNA. (Structure ② is the large organelle that houses the genetic material).
3.
Ribosome - The site of protein synthesis in the cell. (Structure ③ points to the small dots on the rough ER, which are ribosomes).
4.
Cytoskeleton - It organizes intracellular substances. (Structure ④ points to the filamentous network that provides structural support and organization).
5.
Rough Endoplasmic Reticulum (Rough ER) - Involves in production, folding, quality control and despatch of some proteins. (Structure ⑤ is the membrane system with ribosomes attached).
6.
Golgi Apparatus - Packages and secretes proteins. (Structure ⑥ is the stacked, flattened sacs that modify and package proteins).
7.
Mitochondrion - Helps cells maintain shape and internal organization. (Structure ⑦ is the oval organelle with cristae, responsible for energy production, which indirectly helps maintain cellular organization).
8.
Smooth Endoplasmic Reticulum (Smooth ER) - Synthesizes lipids, plasma membranes, and steroids. (Structure ⑧ is the membrane system without ribosomes, involved in lipid synthesis).
9.
Mitochondrion - Helps turn energy from the food that we eat into energy. (Structure ⑨ is another mitochondrion, the powerhouse of the cell).
10.
Lysosome - Handles and gets rid of waste products. (Structure ⑩ is a small, sac-like organelle containing digestive enzymes).
11.
Cytoskeleton - Involved in signal transduction between the cell membrane and the nucleus and organelles. (Structure ⑪ points to the cytoskeletal filaments that facilitate intracellular transport and signaling).
12.
Lysosome - Rids cells of waste products and scavenge metabolic building blocks. (Structure ⑫ is another lysosome, performing the same waste disposal function).
13.
Centrosome - Organizes microtubules that serve as the cell's skeletal system. (Structure ⑬ is the organelle that organizes the microtubule network).
This completes the labeling of all parts of the animal cell based on their functions.
Parent Tip: Review the logic above to help your child master the concept of parts of the cell worksheet.
