Science Lesson 2 Flashcards
Nutrients, Macro-nutrients, Metabolism
Which of the following are classified as macronutrients?
Carbohydrates, proteins, fats, water, and air
Which macronutrient is a primary source of energy for our cells?
Carbohydrates
The constituents of proteins are called ________________________ and are the building blocks of life.
Amino Acids
What macronutrient acts as a solvent for chemical reactions and transports dissolved compounds into and out of cells?
Water
_______________________ breaks glucose into carbon dioxide, water, and adenosine triphosphate, which supplies the energy needed for other chemical reactions.
Oxygen
These types of carbohydrates contains one or two sugars that are released and digested very quickly and tend to spike the blood sugar.
Simple carbohydrates
All of the following are classified as monosaccharides EXCEPT:
Debose
Oligosaccharides have all of the following functions EXCEPT:
Form proteins
________________________ forms a gel-like material when it is exposed to water, which slows the movement of food through the digestive tract.
Soluble fiber
________________________ is a measure of how quickly blood sugar levels rise after eating a certain food. Fifty-five or less is considered low, while 70 or more is high.
Glycemic index
_________________________ is/are never fully absorbed in the small intestine and traverses to the large intestine where intestinal bacteria ferment it.
Resistant starch
_________________________ strengthen cells. For instance, collagen makes up 25 percent of the body’s total protein, and it strengthens bones and connective tissue.
Structural proteins
__________________________ are proteins that break molecules down to be absorbed by the body. Without these proteins, metabolic processes would happen too slowly and we would die.
Enzymes
A good estimate to determine protein needs is to multiply your weight in pounds by ______________ to get the amount of protein in grams you should have daily.
0.36
True or False: Nearly all vegetables, grains, nuts and seeds contain protein.
True?
A protein deficiency can cause which of the following?
Kwashiorkor
Which of the following are plant-based sources of protein?
Peas, Chia Seeds, Quinoa, Broccoli
______________________ are the building blocks of fat.
Fatty acids
______________________ are formed during bacterial fermentation of carbohydrates in the colon.
Short-chain fatty acids
Omega-3 and omega-6 fatty acids are examples of ____________________________?
Polyunsaturated fats
True or False: There are no recommended dietary allowances set for fat intake.
True
All of the following are true regarding water EXCEPT:
Our body is made up of 90 percent water.
What is the general rule of thumb for water intake?
Weight (in pounds) divided by 2 of ounces of water per day.
__________________________ water filters do not allow bacteria thrive and trap more toxins than other types of filters.
Solid carbon
True or False: Outdoor air is generally more polluted than indoor air.
False
Which is the following is NOT a purpose of metabolism:
Creates nitrogenous waste products.
These are known as the starting chemicals before a chemical reaction:
Reactants
Which of the following describes the metabolism of fats, proteins and carbohydrates?
Fats to Fatty Acids, Carbohydrates to Glucose, Proteins to Amino Acids