Biology 156: CELL MODEL

This assignment is about understanding the cell, DNA and Mitosis. I constructed my own model of a cell, mitosis and DNA. First of all lets look at a few pictures of what a Cell, DNA and Mitosis look like, and then well see my models.

This Model is of a cell and what is inside a cell

This is a DNA double helix and what it looks like. If you straighten it out it looks more like a ladder.

DNA replication-When cells divide and each new cell gets an exact copy of DNA.

My Cell

First of all what is a Cell? Cells are basic unit of life, cells are small and can be seen through a microscope. So what is in a cell and how do they work.

• Plasma membrane- (A Pink bowel)- The outer surface of a cell that regulates what can enter the cell and what can exit.
• Mitochondrion- (Blue Moon Sand)- Organelle that carries out cellular respiration, producing ATP molecules.
• Nucleolus- (Cotton ball)- Dark staining, spherical body in the cell nucleus that produces ribosomal subunits.
• Nucleus- (Pink Moon Sand)- stores genetic information.
• Rough ER- (off white yarn)-
• Smooth ER- (Stringers with hearts)-
• Vesicle- (Thumbtacks)- Small, membrane-bounded sac that stores substances within a cell.
• Lysosome- (BB balls)- membrane-bound vesicle that contains hydrolytic enzymes for digesting macromolecules.
• Golgi Apparaus- (Green yarn)- Organelle, consisting of saccules and vesicles, that processes, packages, and distributes molecules about or form the cell.
• Centrioles- (cap of a marker)- Cellular structure, existing in pairs, that possibly organizes the mitotic spindle for chromosomal movement during mitosis and meiosis.

Mitosis
Mitosis is duplication division. The nuclei of the two new cells have the same number and kinds of chromosomes as the ell that divides.

Strands- necklace beads
Molecule-highlighted paper

DNA
DNA is the genetic material and that DNA is largely found in the chromosomes, located in the nucleus of a cell.