What type of digestion involves making food smaller?
Mechanical digestion
What type of digestion includes chewing, tongue movements and mixing food with saliva?
Mechanical
What type of digestion includes stomach churning and digestive juices creating chyme?
Mechanical
What is chyme?
The acidic soup that results from stomach churning and digestive juices
Food moving to the small intestine from the stomach for absorption is what kind of digestion?
Mechanical
The breakdown of macronutrients into their building blocks needed for energy is what type of digestion?
Chemical
In chemical digestion, carbohydrates are broken down into what?
glucose
What enzyme breaks down CHO into glucose in the mouth, pancreas and small intestine?
(salivary/pancreatic) amylase
Where are proteins broken down into amino acids?
Stomach
What two things are needed to break down proteins into amino acids?
HCl which activates pepsin
Fats are broken down into fatty acids by what enzyme?
Lipase
Where is lipase produced?
Mouth, stomach and pancreas
What are some of the digestive changes that occur as we age (8 total)?
Dry mouth
xerostomia
Trouble swallowing
dysphagia
What is a calorie?
A unit of energy required to raise one gram of water one degree celsius
Do calorie needs increase or decrease as we age?
decrease
Do protein needs increase or decrease as we age?
Increase
Do carb requirements increase or decrease as we age?
Neither - they stay the same
Do fat requirements increase or decrease as we age?
Neither - they stay the same
Do vitamin D needs increase/decrease with aging?
Increase due to less sun exposure and skin synthesis
Do calcium needs increase or decrease as we age?
Increase
Do iron needs increase or decrease as we age?
Decrease after menopause for women; stay the same after that (8mg)
Does Vitamin B12 increase or decrease as we age?
Neither - stays the same