Depth paper Flashcards
How to make Chromatography accurate
- Put pencil line higher than solvent to stop it from touching the solvent
- amino acids further away to stop from merging
- don’t touch plate to avoid contamination
- support plate to keep it vertical
- repeat and find mean
- label for easy identification
Diastole
Atria/ventricular diastole
- atria relax
- ventricles relax
- atrioventricular valves open more
- blood enters atria and ventricles passively
Atrial systole
- atria contract
- pressure in atria increases
- atrioventricular valves open/ semi-lunar closes
- more blood enters ventricles
- volume of ventricles increases
- pressure of blood against ventricles increases
- pressure in atria is low
Ventricle systole
- ventricles contract
- volume of ventricles decreases
- pressure on blood in ventricles increases
- atrioventricular valves close
- semi lunar valve opens
- blood flows into aorta
- blood flows into pulmonary arteries
How are amino acids amphoteric
acts as base and acid
- at low pH accepts H+ ions
- at high pH release H+ ions
Name an ion co-factor
amylase needs chlorine to break down starch in the mouth
Name a co-enzyme co-factor
NADP;NAD; Co enzyme A
Name a prosthetic group co-factor
Zinc ion to carbonic anhydrase - inorganic
Precision/ accuracy
Precise - range of measurements - equipment
Accuracy - measures repeatability of an experiment
What does catalase do
Covert harmful hydrogen peroxide to water and O2
How to calculate heart rate from a graph
60 seconds/ time taken for one heart beat
How to know whether organisms are closely related
- biological molecules
- cytochrome C
- genes
- nucleotide base sequences
- evolution within human history
What does smooth muscle constriction cause
- harder to exhale
- lumen narrow
- resistance to airflow
- less air can be inhaled
- harder to ventilate
Spirometer
Breathe in deeply as possible and breathe out as deeply as possible
