Introduction Molecular Cell biology

Question 1

How do we categorise cells?

Answer 1

Eukaryotes and prokaryotes

Question 2

What is the difference between eukaryotes and prokaryotes? Explain with respect to DNA

Answer 2

Prokaryotes lack membrane bound organelles, which eukaryotes have. Their genetic information remains suspended within the cell as DNA instead of being enclosed within a membrane such as the nuclear envelope.

Question 3

What is molecular cell biology interested in studying

Answer 3

cells, Molecules and whole organism models

Question 4

Whole organism models used include:

What do we introduce into them

Answer 4

Rat, mice, fruitfly, plants, sea urchin and nematode (worms). We can introduce mutations into the organism to observe the effect elicited by the gene.

Question 5

Organelles include

Answer 5

Mitochondria, lysosomes, endoplasmic reticulum and Nucleus

Question 6

What is a supramolecular complex

Answer 6

When subunits come together to establish a larger structure

Question 7

Examples of supramolecular complexes include

Answer 7

Ribosomes, chromosomes, nuclear envelope.