Cells organelles Before we begin, what are organelles?

Cells organelles If we have “organs”, cells have … Organelles: Specialized parts of the cell with specific functions

Cells organelles Let’s pretend we are cells. What would cells need to survive?

Mr. Myung’s list (don’t copy this down) Something to decide what to do. Something to convert food to energy. Something to clean up messes (wastes). Somewhere to store things. (Like food, water, and waste). Workers to do things (like moving stuff and making or breaking stuff). Somewhere to make these workers (proteins). Lastly, something to send the workers to where they are needed.

Textbook scavenger hunt! This place acts like the brain of the cell. It has deoxyribonucleic acid (or __________) inside which is like information that is stored. This is like the protective cover for the cell. Kind of like skin for the cell. This is jelly like stuff that fills the cell.

Textbook scavenger hunt! This is the “package” that carries proteins, nutrients, and water into, out of, and around the cell. This is the place that produces energy inside the cell. It makes energy by doing ___________ ____________. This is like small factories that are embedded in endoplasmic reticulum that produces proteins. This is the storage place for water, nutrients, or waste.

Textbook scavenger hunt! This has ribosomes embedded in them giving it a rough and pimply look. Unfinished proteins made by the ribosomes are finished here. Once complete, proteins are sent to Golgi body through vesicles. This sorts the proteins that have arrived from endoplasmic reticulum. It then sends the proteins to where they are needed (again through vesicles). This is a type of vesicle that contains digestive chemicals to break down unwanted substances inside the cell.

Organelles Nucleus: Contains heredity information called DNA (deoxyribonucleic acid). Acts like the brain of the cell that controls what the cell does. Mitochondria: Energy producer of the cell. Does cellular respiration to convert food (sugar) into energy.

Organelles Ribosome: Factory that makes proteins (workers). Endoplasmic reticulum: Folded structure that houses ribosomes. Proteins are completed here and sent to Golgi body.

Organelles Vesicles: Small bubble like structure made of membrane. Contains proteins, nutrients, or water Golgi body: Receives proteins from endoplasmic reticulum by vesicles. Afterwards, it sends these proteins to where they are needed .

Organelles Vacuoles: It is Storage for nutrients, water, and waste material. Lysosome: A type of vesicle. Contains special digestive chemicals. Destroys unwanted substances inside the cell.

Organelles So many organelles!

Plant cells 1. Plant cells have two more structures to know. 2. Chloroplast is a structure inside plant cells that does photosynthesis. 3. Plant cells also have tougher cell walls. This is why you can’t eat grass.

Photosynthesis Photosynthesis reaction Water + Light + Carbon dioxide Oxygen + Sugar Therefore, a plant can essentially feed itself. It makes its own food (sugar). Afterwards, it uses its mitochondria to convert sugar into energy. If you think about it, they sort of have to, because most of them can’t move around to eat food.

Cellular Respiration Essentially a backward photosynthesis Oxygen + Sugar Water + Light + Carbon dioxide Cellular respiration occurs in the mitochondria of both animal and plant cells to make energy. Both plants and animals must do this, because they all need energy.

Today’s homework is… Workbook Section 1.2