Seeing Inside Cells

specimen

noun – an sample that represents a larger group of things, often examined or analyzed

We found a specimen to put on a slide for our microscope.

structure

noun – the basic form or support underlying something

Sometimes we can tell what something does by looking at its structure.

function

noun – a use or purpose of something; what it does or is used for

What is the function of the flagellum?

organic

adjective – related to living things; carbon-based or naturally occurring

Even the hydrocarbons in crude oil are called organic because they include carbon atoms.

membrane

noun – a very thin, flexible layer that encloses something

The cell membrane separates a plant or animal cell's internal environment from its surroundings.

fuel

noun – an energy source that feeds a living thing; food

Where does a cell get the fuel it needs to grow and function?

osmosis

noun – movement through a partially permeable membrane

Through osmosis, salts move from an area of low concentration to an area of high concentration.

cycle

noun – cycle (noun) an period of time in which a set of events or phenomena is completed

The life cycle for yeast cells are much shorter than that of most humans.

producer

noun – a living thing that makes its own food through light and very simple substances

Seaweed is an example of a producer in an ocean ecosystem. What are some producers in a desert ecosystem?

consumer

noun – an animal that eats other living things (like plants or other animals)

Do higher level consumers eat more plants or more animals?