Impact Of Technology On Cell Theory

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Register to read the introduction… All cells are derived from pre-existing cells - through the process of meiosis and mitosis 4. In a multicellular organism, the activity of the entire organism depends on the total activity of its independent cells 3 Significance of technological advances to developments in the cell theory Assess the impact of technology including the development of the microscope on the development of the cell theory The development of cell theory has been heavily impacted by the improvement of technology. The improvement has allowed us from first only seeing a big group of cells to being able to now see to a scale so small we can see in and around a single cell. This has allowed us to observe cells with more detail than ever before and allow us to more accurately determine what cells have what purpose and many other uses. The cell theory states: • All living things or organisms are made of cells and their products. • New cells are created by old cells dividing into two. • Cells are the basic building units of life. The development of the microscope was vital for all 3 points. Without the invention and founding of compound microscopes and electron microscopes as well as new stains and techniques to look at specimens discoveries such as ʻnew cells are created by old cells dividing into twoʼ would not have …show more content…
Examples

None required Yes

All plants and animals

Cigarette smoke Tea Bag Perfume

Uptake of glucose in intestine

5 Explain how the surface area to volume ration affects the rate of movement of substances into and out of cells.

A small cell has a large SA:V ratio and therefore can exchange molecules with it's external environment rapidly. However, ions and water can be lost by diffusion and osmosis, and heat can be lost at a faster rate.

A large cell has a small SA:V ratio and therefore exchanges molecules with it's external environment slowly. Large cells are less efficient as often they cannot obtain enough oxygen and nutrients for their needs.

3. Plants and animals have specialized structures to obtain nutrients from their environment. 1 Identify some examples that demonstrate the structural and functional relationships between cells, tissues, organs and organ systems in multicellular organisms . Multicellular organisms (tree)

Organ Systems (transport system, xylem)

Organs (leaf)

Tissues (phloem tissue)

Cells (guard

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