Cells

In 1665 the Englishman Robert Hooke described having seen what he called "cells" in a piece of cork

Robert Hooke used the term "cells" to describe living cells because

Plant cell walls vs animal cell walls

Unlike plant cells, which have thick cell walls,animal cells lack such a wall and instead have only a thinner, generally more flexible plasma membrane.

Cells only exist as one small part of an organism consisting of many cells, a multicellular organism

Englishman Robert Hoke 1665 was the first to discover that some organisms consist entirely of a single cell

One of the following organisms is unicellular

In multicellular organisms, cells have specific functions

Two German scientists explained the cell theory

Matthias Schleiden and Theodor Schwann, were the first to explain, in 1838 and 1839 respectively, the basic tenets of what is recognised as cell theory

Cell Theory is explained as

The longest known type of cells is ________ cells

Most cell sizes are

Small cell size is thought to be a function of the restriction placed on cells by the ratio of (1) _______ area to (2) __________

Cells absorbing and releasing molecules

Cell processes of absorbing molecules from surrounding medium and releasing molecules into surrounding medium is more readily when

The more the cell gets larger, the harder for it to maintain a stable internal environment