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

digestion

absorption/assimilation

extermination/excretion

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