Not an Old Person Disease

1. Nuc - Nucleus, where the DNA is kept and RNA is transcribed.

Flag – Flagellum, a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells

ER – Endoplasmic reticulum, the transport system for molecules needed for certain changes and specific destinations

Mito – Mitochondria, a part of tissue cells that consists of an outer and an inner membrane

Chlora – Chloroplasts, where photosynthesis occurs and produces food for the cell

Golgi – Golgi apparatus, receives proteins and lipid from the rough endoplasmic reticulum

Ves – Vesicle, moves molecules between locations inside the cell

Lys – Lysosome, the digestive system in the cell. It breaks down molecules into their base components digestive enzymes.

2. The autogenic hypothesis says that a prokaryotic cell slowly evolved on its own to the eukaryotic cell.

3. The evidence that supports the autogenic hypothesis is that the transfer of DNA occurs between bacterias.

4. The endosymbiotic hypothesis is that a prokaryotic cell consumed or “ate” smaller organelles which evolved into what they are today.

5. It says that this is because mitochondrion and chloroplast both have a “brother” cell, and the cells are extremely alike. This “brother” cell is a prokaryotic cell.

6. The comparative strengths and weaknesses of the two hypotheses are with endosymbiotic mitochondria and chloroplast both have their own genetic material. Weaknesses of the endosymbiotic is this does not explain how the nucleus and other organelles came to be. With the autogenic a strength is that the nucleus and ER evolved and this is explained by this hypothesis. A weakness is that not all organelles have evolved.