Question

Cell Organelles and their Functions

This unit we are learning about cells and the organelles contained within. In this Discussion, we’ll focus on the functions of the various organelles and cell structures:

Cell membrane | Mitochondria | Plant cell wall | Plant chloroplast | Nucleus | Lysosomes | Nuclear envelope | Rough endoplasmic reticulum | Golgi apparatus | Smooth endoplasmic reticulum |Cytoskeleton | Cilia and flagella

1. Select four of the organelles or structures above and briefly describe where each is located in the cell, their appearance and the role each carries out.
2. Look around your home or place of work and find an item or process that is analogous to each of the four organelles you described. Be sure to explain how that item or process is analogous to the cell structure or organelle; be specific. Here is an example of an analogy:

A record player is like the rough endoplasmic reticulum in that it takes information encoded in the grooves of the record and translates them into a song from start to finish. The grooves in the record are like xxxxx and the song produced is like xxxxxx.

You will need to justify your analogy and provide the information indicated by xxxxxx. You may not use this example and do not use a tape recorder or CD either.

ANSWERS MUST ORIGINAL AND NO PLAGIARISM

Answer 1

1. cell membrane - this separates the interior of the cell to the exterior environment. this also works in allowing the entry of macromolecules and macromolecules into the cell through the lipid bilayer. they are phospholipid bilayers having protein embedded into it.

cell membrane analogous to our front gate of the house which separates the house from the other houses and street and restricts the entry of stray dogs and strangers.

2. Mitochondria - it is the power house of cell it helps in producing energy in the form of ATP to help other cells to function. it located in the cytoplasm of the cell.

this is analog to our electric generator where electricity is produced and stored. again it is used for other application like TV, computers, fans.

3. plant cell wall - it is the outer cover of the plant cell which protects the interior of the cell and it also controls the entry of solute and ion molecules.

plant cell wall analogous to walls of our home which separate our interior home from the outside street of the world. it also controls the entry of people and other things coming to our house by the help of door and window.

5. Plant chloroplast - this is an important component of a plant cell which helps in photosynthesis and it absorbs sunlight and makes the food for the cell. it present in the cytoplasm of the plant cell.

Plant chloroplast analog is our own kitchen where we prepare the food for the entire family.

6. Nucleus - The nucleus is the information center of the cell and is surrounded by a nuclear membrane in all eukaryotic and it contains the hereditary material DNA. and located in the center of the cell covered with the nuclear envelope.