Flashcards in Mock Failures Deck (32):
What's the difference between vaccination and immunisation?
Vaccination involves injection of antigenic material
Immunisation process of developing immunity
When you listen to a human heartbeat through a stethoscope you can hear a two stage "lub dub"
Which causes the following causes the first lub component?
The sound of blood rushing into the atria
Zinc ions are necessary for enzyme carbonic anhydride to work
Which statement correctly describes the nature and function of zinc ions in their interaction with carbonic anhydrase?
Inorganic ions and prosthetic groups
Which volume would you use to estimate the volume of a neutrophil?
Describe correct sequence of organelles involved in production and secretion of a protein from this cell?
Describe mechanism behind water movement between plasma and tissue fluid at Venules end of capillary?
The oncotic pressure is greater than the hydrostatic pressure so water moves into the capillary
From where to where on the graph do you calculate oxygen consumption in the experiment?
From beginning to end
Formula of saturated fatty acid?
No double bonds
Chemical produced by metabolic pathway binds to initial enzyme in pathway. Chemical bonds to enzyme at site away from active site and inhibits enzyme action.
Mode of action of chemical?
End product inhibitor
Bonds to the allosterid site of the enzyme
True or false
At endodermis water had to enter the symplast pathway
True or false?
Casparian strips in endodermis contain chemical lignin?
True or false
Most of water moves across root cortex by the apoplast pathway?
Guard cells adapted to role how?
Uneven thickened cell wall
Able to bend/change shape
Transport proteins in plasma membrane
Chloroplasts provide energy
Other than stomata name one other part of leave from which water may be lost
Plasma membrane is?
If all water lost from leaf cell is not replaced, they lose... And the leaf may wilt
Cohesion tension theory
Use theory to explain how water moves from roots to leaves?
Evaporation at top
Creates tension in xylem
Water molecules cohesive/ attracted together/pulled up
Yeast means of cell division?
Animal plant yeast bacterium who has nucleus?
Bacterium- no nucleus
Material in cell wall bacterium?
Presence of ribosomes animal plant yeast bacterium
Animal- ribosomes present
Plant- no ribosomes present
Yeast- ribosomes present
Bacterium- no ribosomes present
Explain How alveoli create a surface for efficient gaseous exchange?
One cell thick-diffusion
Elastic-can recoil to help with ventilation
Good concentration gradient
Large surface area
Small- surface area to volume ratio
Describe effect of high temperature in structure of the yeast cell membranes
1) phospholipids vibrate more
2) increases gaps in phospholipids
3) bilayer more fluid
4) more kinetic energy
SA node generates electrical signals
Walls of atria contract
Atrioventricular node recurred electrical signal from SA node?
Electrical signals transmitted down septum
Ventricle walls start to contract
Atrioventricular valves close
Ventricles walls relax
Seimilunar valves close
Young mammals receive antibodies in their mothers milk
What type of immunity is it?
Natural passive immunity
Suggest and explain what effects super ventricular tachycardia might have on blood flow from the heart?
Less blood leaves the heart
Ventricles don't have time to fill before contaction