Digestive System Lecture Quiz 3/18

Your cells work best with materials that are in their most BASIC / COMPLEX form.

basic

Both you and food have energy stored in the ____________________________________ between atoms.

bonds

We measure the energy stored in the chemical bonds in food in ___________________________________.

calories

Most of these steps require _____________________________________________ among multiple organs.

cooperation

We eat any kind of food for two reasons: 1. To obtain the ________________________________________ we need to stay alive. 2. To get the raw materials required for building all of our _______________________________.

energy tissues

The first process of digestion is eating, or ______________________________________. This process is both mechanical and chemical. The second step is propulsion, which is started by swallowing but is continued on via the involuntary muscle movement ____________________________________________. All of this pushing results in step 3, ______________________________________ digestion. The goal of this is to increase the surface area of the food, making it easier for step 4, _______________________________ digestion to break the food down further. Step 5, ________________________________________, occurs in the small intestine and involves the absorption of the nutrients into your blood stream. Once your body has sucked out all the nutrients it wants, the leftovers are escorted out of your body via step 6, _____________________________________.

ingestion peristalsis mechanical chemical digestion absorption defecation

The simple idea behind your digestive system is to break down the polymers of macromolecules in your food into ____________________________ that your cells use to build their own polymers.

monomers

The alimentary canal (the gastrointestinal tract) contains the hollow organs that run from your _____________ to your _____________________.

mouth to anus

The inner GI tract is lined with ____________________________ which lubricates and protects it from being digested by its own enzymes.

mucus

Enzymes are _____________________________ that living things use as catalysts to speed up reactions.

proteins

The inside of your gastrointestinal tract is technically outside your body TRUE / FALSE

true