Cells

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

True

False

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Explanation

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

the cork appeared to be composed of thousands of tiny chambers that resembled the individual sleeping rooms in monasteries at the time, which were called cells

they resembled prison cells

they resembled beehive cells

no clear reason

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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.

True

False

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

True

False

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

True

False

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One of the following organisms is unicellular

Bacteria

Orange

Fungi

Algae

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In multicellular organisms, cells have specific functions

True

False

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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

True

False

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Cell Theory is explained as

Cells are the fundamental units of life

Cells are the smallest entities that can be called living

All organisms are made up of one or more cells

All of the above

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The longest known type of cells is ________ cells

prokaryotic

eukaryotic

nerve

stem

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Most cell sizes are

0.1 to 30 micron in diameter

0.4 to 25 micron in diameter

0.3 to 30 micron in diameter

0.5 to 40 microns in diameter

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

drag and drop the selected option to the right place or type it instead

surface

volume

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Cells absorbing and releasing molecules

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

a cell is large and the ratio of surface area to volume is quite small

a cell is small and the ratio of surface area to volume is quite large

None of the above

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

True

False

POINTS (1)

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

Correct Answer

Explanation

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

Correct Answer

Explanation

Plant cell walls vs animal cell walls

Correct Answer

Explanation

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

Correct Answer

Explanation

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

Correct Answer

Explanation

One of the following organisms is unicellular

Correct Answer

Explanation

In multicellular organisms, cells have specific functions

Correct Answer

Explanation

Two German scientists explained the cell theory

Correct Answer

Explanation

Cell Theory is explained as

Correct Answer

Explanation

The longest known type of cells is ________ cells

Correct Answer

Explanation

Most cell sizes are

Correct Answer

Explanation

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

Correct Answer

Explanation

Cells absorbing and releasing molecules

Correct Answer

Explanation

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

Correct Answer

Explanation

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