Science
nourishing substance
food
mainly responsible for the digestion and absorption of food
digestive systerm
or throat connects the mouth to the esophagus
pharynx
the pharynx has a flap called _____, which closes the windpipe
epiglottis
when food is swallowed, it passes through the?
esophagus
is a muscular tube that is approximately 25 cm long
esophagus
is fhe series of involuntary
peristalsis
is a muscular, expandable organ
stomach
is a long, narrow gland
pancreas
the entry point of the food is?
mouth or oral cavity
is about six to seven meters
small intestine
is a green, pear-shaped sac that is approximately 10 cm long
gallbladder
is shorter than but wider than the small intestine
large intestine or colon
is an expandable storage organ of undigested food
rectum
is a small, thin tube that sits at the lower right abdomen
appendix
the appendix is also connected to the?
cecum
which is a pouch-like section located on the same side of the appendix
cecum
what are the four stages in the digestion process?
ingestion
the start of obtaining nutrients
ingestion
in this stage, the food has been pre-digested mechanically in the oral cavity
digestion
there are two digestion processes
mechanical digestion
chemical digestion
starts at the mouth as the food is being chewed
mechanical digestion
is the process that makes use of digestive enzymes
chemical digestion
during chemical digestion, the digestive enzymes break down these complicated
absorption/assimilation
the final stage of digestive process. it is the removal of metabolic waste products
extermination/excretion
are macronutrients, which serve as important sources of energy
carbohydrates
are needed to be eaten regularly and in huge amounts
macronutrients
is composed of a single simple sugar unit such as glucose
monosaccharide
is composed of a double sugar
disaccharide
are complex carbohydrates
polysaccharides
are macronutrients that also provide energy especially among young children
fats
are commonly referred to as unhealthy fats
saturated fats
are liquid under room temperature
unsaturated fats
largest organ of the body
liver
six types of nutrients
carbohydrates
lipids (fats)
proteins
vitamins
minerals
water
the process on how the cells use the energy
metabolism