Nutrition Activity 3 part 1

Add water to the biscuit drop by drop until it is soft.

Mash the biscuit so it can be rolled into small balls that can fit into the straw.

Roll the food into small balls. Each ball is called a bolus (plural = boli)

Squeeze the balls in from one end of the straw to the other

Squeeze the bolus out of the straw and into the ziploc bag.

Ensure all the food is in the ziploc bag.

Add 10 cm³ of gastric juice into the bag.

Remove as much air as possible and seal the bag.

Mix the food and the gastric juice lightly with your hands.

Tear the old worksheet into a square, and fold it into half twice.

Place it on top of the cup so it acts as a filter.

Pour the stomach contents into the filter

Add twice the volume of bile + pancreatic juice + intestinal juice to the filter

Use red and blue litmus paper to determine the pH of the filtrate