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Digestion and Excretion

Use your notes and science book to help you find the correct words.
Across
Enzyme that chemically digests proteins in your food.
Where water is reabsorbed into the blood stream.
_____ Digestion is when food is broken up by acids and enzymes.
Primary part of the mouth that does mechanical digestion.
Process of nutrient molecules passing through the wall of the digestive track into your blood
Where a lot of the chemical digestion occurs.
Tiny finger-like structures that help you absorb nutrients in the small intestine
First part of the digestive system.
These are proteins that speed up chemical reactions.
Produces enzymes for the small intestine
Down
Keeping all your body systems in balance.
Breaks down food particles and produces bile.
_____ bladder is a sacklike structure that holds urine.
The involuntary waves of muscle contraction that move food down the esophagus.
Where most of the nutrients are absorbed
_____ Digestion is when food is broken up by movement.
The Process of breaking down nutrients into molecules your body can use.
_____ glands produce the saliva that starts digestion
The _____ are like tiny filtering factories in the kidney
Muscular tube that connects the mouth to the stomach.
Flap that keeps food from going down your windpipe.
Stores bile
Watery liquid that contains wastes and Urea.