Functions of the Digestive Tract
What is the primary goal of chemical digestion? What "tool" is used?
To turn insoluble molecules into soluble molecules.
Enzymes
What is the difference between a positive and negative result?
Positive result - the biomolecule is present
Negative result - the biomolecule is not present
Can you give 3 examples of proteins in food?
Eggs, milk, cheese, meat, legumes
What do calories on a nutrition label tell you?
How much energy you will get in each serving size!
What mythical persona is associated with Valentine's day?
Cupid!
The salivary glands are found in the mouth. What secretions do they produce and what are the two helpful functions of those secretion?
Saliva
-lubricate food
-contains amylase to begin breaking down starch.
What test is used to look for the presence of starch?
Iodine test
What elements are proteins composed of?
Carbon, hydrgen, oxygen, and nitrogen
A student has a bit of pasta, high in carbohydrates. Tell me each step that happens so that pasta becomes energy (use vocab words!)
Carbohydrates --> enzymes --> single glucose molecules --> travel to cell --> mitochandria --> cellular respiration --> ATP
Which species of bird is often associated with Valentine's day?
The dove
What are the three organs in which digestion occurs?
Mouth, stomach, small intestine
The biuret test looks for proteins. What does a positive result look like?
Purple color, proteins are present
If something is composed of just a simple sugar (glucose) what is it called?
Monosaccharide
If you are diagnosed with Scurvy, what part of your nutrition are you deficient in?
Vitamin C
When were the first commercial valentines printed in the USA?
Mid 1800s
What is the word that describes how food is moved through the esophagus in contraction waves?
Peristalsis
In the lipid test, what solution is used and what is the ratio of the liquids? What does a positive result look like?
1:1 ration (50% water and 50% ethanol)
Positive result has a white emulsion form
What are lipids composed of? Name 2 types of lipids.
Glycerol and fatty acid chains
Fats and oils
What type of nutrient comes from cellulose, is indigestible, and helps to move things through the digestive system?
Fiber (roughage)
What are red roses said to be associated with?
Passion and love
Describe segmentation in the intestines, what type of digestion is it involved with?
the seperation of food molecules in mechanical digestion to increase the surface area so enzymes can interact
A student is working in a laboratory testing a bath of pasta for different biological molecules. He warms a solution for 2-3 minutes in a water bath and has multiple different color results.
What test is he doing? What does an orange result mean?
Benedicts Solution/test for simple sugars
Moderate simple sugars present
What are the three components that make up an amino acid?
Central carbon, amino group, carboxyl group
What vitamin/mineral ion is needed for haemoglobin? What are good food sources of this?
Iron
red meat and green vegetables.
According to Roman mythology, who are Cupid's parents?
Venus the goddess of love and Mars the god of war.