enzymes

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28 05, 2017

How do cells get rid of cell waste?

By |2019-06-02T21:16:50-07:00May 28th, 2017|Biology|4 Comments

Cell waste: A cell with a vacuole Cell waste and vacuoles Soon after eukaryote cells began to make vacuoles to help them catch their food and store it, about 600 million years ago, the cells also began to use the vacuoles to get rid of garbage in the cell - molecules that the [...]

28 05, 2017

What is an enzyme? Cell biology

By |2019-05-30T07:55:45-07:00May 28th, 2017|Biology|0 Comments

A model of an enzyme reacting with another molecule and breaking it into two pieces. Each little ball represents an atom.This enzyme, lysozyme, breaks up bacteria in your blood to keep you from getting sick. What are enzymes made of? An enzyme is a kind of big, complicated protein molecule, made mainly of [...]

28 05, 2017

Enzymes project – Bread and Spit – Science Activities -Biology

By |2017-05-28T17:33:50-07:00May 28th, 2017|Biology, Food|0 Comments

A loaf of bread You can easily taste how your enzymes work breaking down your food into smaller pieces. Do this experiment right after lunch, when you'll have a lot of enzymes in your saliva. Get a slice of plain bread (a starch) and chew it slowly. Keep chewing for a long time, but [...]

28 05, 2017

Cell digestion – Parts of a cell – Cell Biology

By |2019-05-07T14:54:58-07:00May 28th, 2017|Biology|0 Comments

Amoeba - a one-celled organism - Cell digestion How do cells get energy? All cells have to have some way to get energy from outside themselves, or they will starve to death. The earliest, simplest cells, about 3.5 billion years ago, got their food by drifting around in the ocean until they came [...]

28 05, 2017

What is cytoplasm? Parts of a cell – Cell Biology

By |2019-04-30T12:46:50-07:00May 28th, 2017|Biology|0 Comments

What is cytoplasm? A very simple cell (seen through a microscope) What is cytoplasm? Inside all cells, from the most simple to the most complicated, there is cytoplasm. Cytoplasm is what all the rest of the stuff inside the cell floats in. Parts of a cell Evolution of cells All our biology articles [...]