Cell structure and function

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

What do you know about cells?

How did they discover cells?

What is the main difference between a bacteria and an animal cell?

What are organic substances?

organic <-> inorganic

Inorganic substances are:

small and simply built

consist of only a few atomic types

main examples: O2, CO2, H2O, NO3, N2 etc.

Organic substances are:

more complicated in construction

consist at least of C, H and (usually) O atoms (often N and / or P and sometimes S and other types)

are produced by organisms

main examples: glucose, starch, amino acids, proteins, DNA / RNA, chlorophyll

From lifeless to life: self-organization

inorganic substances

organic

substances

prokaryotic cell

energy

energy

Self-organization: creation of new units whereby new properties arise at a higher organizational level (emergent property)

Miller-Urey experiment

Creating organic matter (including sugars and amino acids) from a mixture of ammonia, methane, water and water vapor.

Electric discharges from lightning as a catalyst for chemical evolution.

From prokaryote to eukaryote:

endosymbiosis theory

another example of self-organization

Which two organelles have become part of eukaryotic cells according to the endosymbiosis theory?

Answer this question:

What are the three main ideas in the cell theory?

Answer this question:

What are the differences between a prokaryotic and an eukaryotic cell?

Answer this question:

Write down the different organelles and cell structures and describe their function.

Work to be done:

Biozone Worksheet 59. 

Assessment questions Glencoe pg. 211-212 Q 1-8 and 11-16 and 19-20