7th-Grade-Technology-HT-1

From New World Encyclopedia In biology, binomial nomenclature is the formal system of naming species whereby each species is indicated by a two-part name, a capitalized genus name followed by a lowercase specific epithet or specific name, with both names italicized (or underlined if handwritten, not typeset) and both in (modern scientific) Latin.

I learned that binomial nomenclature is the naming of the groups that plants, animals, and organisms are classified as.

Now I know what this means! I thought it was something like a dichotomous key...

Rules for assigning scientific names have become well codified in order to keep the names internationally unambiguous and understandable. The full set of rules is rather involved, but the most important parts are fairly simple: Binomens - A genus name is one word. A species name is binomial -- the genus plus a second word.

Cytoplasm is the fluid that fills a cell. Scientists used to call the fluid protoplasm. Early on, they didn't know about the many different types of fluids in the cell. There is special fluid in the mitochondria, endoplasmic reticulum, Golgi apparatus, and nucleus.

Cytoplasm is the fluid that fills a cell. Scientists used to call the fluid protoplasm. Early on, they didn't know about the many different types of fluids in the cell. There is special fluid in the mitochondria, endoplasmic reticulum, Golgi apparatus, and nucleus.

While cell membranes might be around every cell, cell walls made of cellulose are only found around plant cells. Cell walls are made of specialized sugars called cellulose. Cellulose provides a protected framework for a plant cell to survive. It's like taking a water balloon and putting it in a cardboard box.

While cell membranes might be around every cell, cell walls made of cellulose are only found around plant cells. Cell walls are made of specialized sugars called cellulose. Cellulose provides a protected framework for a plant cell to survive. It's like taking a water balloon and putting it in a cardboard box.

In this lab you will look at the eukaryotic cells of plants and animals. Eukaryotic cells are distinguished from the more primitive prokaryotic cells by the presence of 1) cytoplasmic membranous organelles, 2) a nuclear membrane (i.e. a true nucleus), and 3) chromosomal proteins.

Primary and secondary walls contain cellulose, hemicellulose and pectin, albeit in different proportions. Approximately equal amounts of pectin and hemicellulose are present in dicot primary walls whereas hemicellulose is more abundant in grasses (e.g., switchgrass). The secondary walls of woody tissue and grasses are composed predominantly of cellulose, lignin, and hemicellulose (xylan, glucuronoxylan, arabinoxylan, or glucomannan).

Thought this was cool and helpful. Research, then build your own cell!

Ideas about cell structure have changed considerably over the years. Early biologists saw cells as simple membranous sacs containing fluid and a few floating particles. Today's biologists know that cells are infinitely more complex than this. There are many different types, sizes, and shapes of cells in the body.

With few exceptions, cellular membranes - including plasma membranes and internal membranes - are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.