summary Flashcards
Physical/mechanical digestion
- The physical breaking up of food
- For example, chewing
Chemical digestion
- The chemical breaking down of food by enzymes
role of digestion
- To break the complex substances in food into simple molecules that can be absorbed into the blood
amylase
- Carbohydrates and starch (complex substance)
- Glucose (simple molecule)
- Mouth, stomach, small intestine
“amylase - star wars - starch wars”
protease
- proteins
- Amino acids
- Stomach, small intestine
“protease - proteins, duh”
lipase
- fats, oils, triglycerides
- fatty acids
- small intestine, with the help of bile from the gallbladder
total magnification
Total magnification = eyepiece/ocular mag x objective lens mag
whats the rule with FOV
The higher the mag, the smaller the field of view
how much can a compound mic go up to
x1000 mag
whats special about SEM
they can magnify up to many millions of times
nose/mouth
Inhale air from environment
nasal cavity
Warm air, moisten air, filter out dust, smell
pharynx
Connects mouth, nasal cavity, and trachea
larynx
“voice box”, connects pharynx to trachea
epiglottis
stops food from going down the trachea
bronchi
The two branches from the trachea
bronchides
Many branches of bronchi, connect to the alveoli
alveoli
highly vacuolised, high surface area, thin walled sacs where gases diffuse into and out of the blood
order of the respiratory system
nose/mouth
nasal cavity
pharynx
larynx
epiglottis
bronchi
bronchides
alveoli
