Digestion, Macromolecules, Cellular Respiration Flashcards
Important of a balanced diet?
Provides necessary nutrients and energy
Why do human needs to consume food for energy?
The food is broken down into ATP during digestion
What are the elements in carbohydrates?
1 carbon, 2 oxygen, 1 hydrogen
What are the elements in protein?
Nitrogen, carbon, hydrogen, oxygen
What are the elements in lipids?
Carbon, hydrogen, oxygen
What is the monomer of carbohydrates?
Glucose
What is the polymer of carbohydrates?
Starch
What are carbohydrates functions?
Main source of energy
Where are carbs digested and what enzymes are involved?
In the salivary glands using analyze
Monomer of protein?
Amino acids
Polymer of proteins?
Protein
Function of protein?
Controls rate of enzyme reactions
Place where proteins are digested and enzyme used?
Stomach using pepsin
Monomer of lipids?
Triglyceride
Polymer of lipids
Fatty acids
Function of lipids
Stores energy
Place where lipids are digested and enzyme used?
Pancreas using lipase
Function of mouth
Teeth to chew food and enzymes to chemically break down food
Function of salivary glands
Makes enzymes for digestion in the mouth
Function of Esophagus
Connects mouth to stomach
Function of liver
Makes bile; stores iron; detoxifies chemicals
Function of gall bladder
Stores bile before it is released into the small intestine
Function of stomach
Strong muscles to grind up food and uses acid to chemically break down food
Function of pancreas
Releases digestive enzymes and insulin into small intestine
Function of small intestine
Some food breakdown and lots of nutrient absorption into the blood stream
Function of large intestine
Absorbs water into body
Function of anus
Exit for all undigested food and waste
What is a substrate
The substance with which an enzyme reacts
What is the active site
The place where the reaction takes place
What is meant by enzyme specificity
Refers to the tendency for enzymes to catalyze a specific set of chemical reactions
What is a monosaccharide
A type of sugar molecule from the food you eat that are absorbed from your gut into your blood and carried to the cells in your body for energy
What is a disaccharide
A type of sugar molecule that needs to be broken down into monosaccharide components before it can be absorbed into the blood
What is the chemical equation for cellular respiration
C6H12O6+6O2=6CO2+6H2O+36 ATP (glucose+oxygen converts to carbon dioxide+water+36 ATP)
What are the three steps of aerobic cellular respiration
Glycolysis
Kreb’s Cycle
Electron Transport Chain
Where does glycolysis take place
Cytoplasm
What is used in glycolysis?
Glucose
What is the output of glycolysis
2 pyruvate
How much atp is produced after glycolysis
2
Where does the Kreb’s Cycle take place
Mitochondria
What is the input of the Kreb’s Cycle
2 puruvate
What is the output of the Kreb’s Cycle
CO2
How much ATP is produced after the Kreb’s Cycle
2
Where does ETC take place
Mitochondria
What is the input of ETC
Hydrogen and electrons
What is the output of the ETC
water and carbon dioxide
How much ATP is produced after the ETC
32
What are the two kinds of anaerobic cellular respiration
Lactic acid fermentation and alcoholic fermentation
What are the steps of lactic acid fermentation
- Glycolysis
2. Two pyruvates convert into lactic acid because of the lack of oxygen
What are the steps of alcoholic fermentation
- Glycolysis
2. Two pyruvate turn into ethanol and carbon dioxide
What happens during glycolysis
In the cytoplasm, glucose molecules are broken down into two pyruvate and two ATP are formed
What happens during the Kreb’s Cycle?
In the mitochondria, the two pyruvate turn into CO2, hydrogen, and electrons, two ATP is produced
What happens during the Electron Transport Chain
In the mitochondria, the hydrogen and electron are added to oxygen, these combine to make six water molecules and 32 ATP
What is the goal of cellular respiration?
To break down food into energy