Week 1

Question 1

Cyanobacteria

Answer 1

~ 3.5 billion years ago. Carried about by photosynthesis releasing oxygen into the atsmosphere

Question 2

Stromatolites

Answer 2

Created by cyanobacteria layering on top of each other. Can be seen in Western Australia

Question 3

What is biology?

Answer 3

The study of life

Question 4

What characterizes life?

Answer 4

There are 5 characteristics:

1) Structural Organization - made up of cells
2) Generative Processes - grow and develop, reproduce and pass on genetic material
3) Metabolic Processes - nutrition uptake, nutrient processing, waste elimination
4) Control Processes - Coordinate and regulate metabolic activities, maintain homeostatisis
5) Responsive Processes - rapid response to stimuli, individual adaptation, population adaptation (evolution)

Question 5

What are the two types of organisms?

Answer 5

Unicellular and multicellular

Question 6

What is the hierarchical organization of multicellular organism?

Answer 6

atom > molecule > cell > tissue > organ > organ system > organism

Question 7

What are the types of reproduction?

Answer 7

Asexual and sexual

Question 8

What are the types of metabolic processes?

Answer 8

Photosynthesis and Cellular respiration

Photosynthesis is ANABOLIC –> uses energy to build more complex molecules from simpler ones

Cellular Respiration is CATABOLIC –> releases energy through the breakdown of complex molecules into simpler ones

Question 9

What is cytology?

Answer 9

The study of cells

Question 10

What is the broad term for cell parts?

Answer 10

Organelles

Question 11

What are the biological molecules built from carbon?

Answer 11

Nucleic acids, Proteins, Carbohydrates, and Lipids

Question 12

What do Ribosomes do?

Answer 12

Assemble amino acids to make proteins