HUMAN SYSTEMS 🔥🔥🔥🔥 Flashcards
What is the word equation for cellular respiration?
Glucose + Oxygen -> CO2, Water, ATP Energy
(CO2 and Water are waste products.)
What is the role of the digestive system?
To provide nutrients to the body by breaking down food into simpler forms
How does Cellular Respiration provide energy for cells?
Cellular Respiration provides energy for cells by taking glucose from food and oxygen from the atmosphere and then converting it in our bodies (particularly the respiratory system), to ATP Energy, which powers our cells and thus allows them to keep working.
Mechanical Digestion definition
a physical change where food is broken down into smaller pieces, e.g. a piece of bread is broken down into smaller pieces by the teeth.
Chemical Digestion definition
a chemical change where large chemicals in the food are broken down into smaller ones, e.g. starch is broken down into glucose.
What do Enzymes do in the digestive system?
Enzymes help break down food. Digestive enzymes speed up the breakdown of large, complex molecules into smaller ones the body can use.
How does the small intestine work? (there are multiple answers I think)
Example: Diffusion happens in the small intestine, where smaller particles enter through gaps big enough for them to fit in (but not big enough for larger particles to enter.) This helps your body absorb your food.