Cells and living organisms for ESL students

Cells and Living OrganismsAll living organisms are divided in pieces called cells.

Is it a living or non-living organism?Does it have cells?

HUMAN SKIN

Onion skin

Brain cells under a microscope

All living organisms on Earth are divided in pieces called cells.

Inside the cell, there are proteins and organelles. A main purpose of a cell is to organize. Cells hold a variety of pieces and each cell has a different set of functions.

Cells keep organisms alive.

The smallest unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

http://youtu.be/rABKB5aS2Zg

Cell wall The outside layer of the cell in plants and certain algae, bacteria, and fungi but not in animal cells.

Cell membrane is a membrane surrounding the cytoplasm of a cell.

The Cytoplasm all of the contents outside of the nucleus and held together by the cell membrane.

The Nucleus is in the center of the cell. It contains DNA (hereditary information).

Chromosomes are in the nucleus of most living cells. They carry genes (genetic information)

http://youtu.be/JnlULOjUhSQ

A vacuole is a small pocket in the cytoplasm filled with liquid (water or food)

A mitochondrionan is an organelle in the cytoplasm of cells that produces energy.

Endoplasmic reticulum a cell organelle. One is its jobs it to transport proteins

The Ribosome holds RNA which is very important to help use you our protein

Golgi apparatus processes protiens created by the ribosomes.

WRITE: Describe the a plant cell and an animal cell using sentences like these.The animal cell is ______. The plant cell has_______.There is ______ in the plant cell.

Other living things

Take notes:What are the 8 types of living organisms in this power point?

What is the definition of each one?

Give me one example of each.

Vertebrates have backbones

Invertebrateshave NO spine

Monerans: Organisms with one cell. Reproduce by splitting in two. Absorb nutrients from outside their bodies. Some monerans cause diseases. Have no nucleus.

Bacteria are monerans

Protists are eukariotic (it has a nucleus). Most only have one cell, Fungi, algae, and amoebas are protists. Some protists can cause diseases like malaria

Seedless plantA plant that does not produce seeds. A fernis a seedless plant.

seeds

A cone-bearing plant is a plant that reproduces using cones. It is green all year (like a pine tree).

In flowering plants the reproductive structures are flowers. Tulips and roses are flowering plants.

Fungi (plural) fungus (singular)A plant that lacks chlorophyll, leaves, true stems, and roots. They reproduce by spores.Mushrooms and mold are fungi.