M1 Cell Biology Short Answer

Name 2 prokaryotic Archaea

Answer explanation

Thermophile - likes hot places

Halophile - likes salty places

Methanogen - makes methane

Name two organelle differences between a eukaryotic and prokaryotic cell.

Answer explanation

-DNA is dispersed in cell

-no membrane bound organelles

What are the name and functions of organelles (2 marks each)

-numbered 3

-numbered 7

-numbered 10

Answer explanation

number 3 name - ribosome

number 3 function -protein synthesis

number 7 name - Cytoskeleton

number 7 function - part of the cell that holds the cell together giving it the shape and allows organelles to move

number 10 name - vacuole

number 10 function -stores sugars, minerals, water and proteins

Name the four modes of cellular transport (D.O.AT BT)

Answer explanation

Name two eukaryotic fungi

Answer explanation

Name one Carbohydrate disaccharide molecule (2 monomers)

Answer explanation

Name an enzyme and how it is used in Industry

Answer explanation

Lactase- for people who are lactose intolerant

detergent - lipase and proteases

Lovastatin - inhibits cholesterol synthesis

Antabuse - nausea and hangover symptoms for alcoholics

Give one example of a body system that Homeostasis regulates

Answer explanation

Examples:

-Water

-pH

-Blood Glucose

-Body temperature

Recall 2 out of the 5 statements for what makes a living cell in The Cell Theory

Answer explanation

1. 1. All living organisms are made up of cells.
   2. New cells are always produced from pre-
   existing cells. This is called cell division (Mitosis).
   3. The cell is a structural and functional unit of
   all living things.
   4. The cell contains hereditary information which
   is passed on from cell to cell during cell division.
   5. All cells are basically the same in chemical
   composition and metabolic activities.