(Basic Nutrients) Basic Nutrients Flashcards
How many classes are diets divided into?
6
What is used for energy and structure? (3)
Carbohydrates
Proteins
Lipids
Carbohydrates supply ______ and provide _________ within the ____
Energy
Structure
Cell
What is utilized in many functions and structures of the body? (2)
Waters
Minerals
What has the key role in metabolic functions of the cell?
Vitamins
What are carbohydrates used for?
Used for energy and structure
What are proteins used for?
Used for energy and structure
What are lipids used for?
Used for energy and structure
What is water used for?
Utilized in many functions and structures of the body
What are minerals used for?
Utilized in many functions and structures of the body
What are vitamins used for?
The key role is in metabolic functions of the cell
The nutrients/diet provide the body with _____ essential elements for life
Three
What are the three essential elements for life? (3)
Energy to do its work
Building materials to maintain its form and function
Control agents to regulate these processes efficiently
What is the primary source of nutrients?
Carbohydrates
______ found in the form of ________ bonds ___________ within the cell
Energy
Chemical
Metabolized
True or False:
Animals utilizes much of the energy
True; some released as heat which maintains the normal body temperature
What is the unit of measurement that defines the energy within food?
Calorie
What is a calorie measured as?
The amount of energy required to raise one gram of water one degree Celsius
Vast resources from the ___ enable ______ through ______________, to transform _____ energy into carbohydrate, the human body can rapidly break down the carbohydrates back into ______
Sun
Plants
Photosynthesis
Solar
Energy
Energy is used interchangeably with _______, ___________, and ____
Calorie
Kilocalorie
Kcal
True or False:
Both voluntary and involuntary movements require energy
True
Where is energy derived from?
Derived from the digestion and metabolism of food
How many things must be done to produce energy from a fuel source? What are they?
3
Change the basic fuel to a refined fuel that the machine is designed to use
Carry this refined fuel to the places that need it
Burn this refined fuel in the special equipment set up at these places
What are practical reasons that carbohydrates are found in diets all over the world? (_)
3
Carbohydrates are widely available
Carbohydrates are relatively low cost
Carbohydrate foods are easily stored
What is a carbohydrate composed of? (3)
A Carbon (C), Hydrogen (H), and Oxygen (O)
What are the simple carbohydrates?
Monosaccharides
Disaccharides
Describe a monosaccharide
One sugar unit
Describe a disaccharide
Two sugar units, simple double sugars
What is the complex carbohydrate?
Polysaccharides
Describe a polysaccharide
Chain of many sugar units
What are the three single sugars (monosaccharides)? State at least one example for each
Glucose (corn syrup etc.)
Fructose (fruits, honey etc.)
Galactose (lactose/milk etc.)
Monosaccharides are ________ ______ for all carbohydrates
Building blocks
True or False:
Monosaccharides require digestion to be absorbed into the body
False; Monosaccharides require NO digestion
Monosaccharides are quickly absorbed from the _________ into the _____ ______ and transferred to the _____
Intestine
Blood stream
Liver
What determines if the monosaccharides are then used for immediate energy or stored as glycogen for later use?
Energy demands
What three disaccharides are important in human nutrition? State the single sugar units of each double sugar and give an example of each
Sucrose (Glucose + Fructose) (table sugar etc.)
Lactose (Glucose + Galactose) (sugar in milk etc.)
Maltose (Glucose + Glucose)
Does maltose usually exist?
Not usually found as maltose but rather is an intermediate between starch and glucose
What are important polysaccharides in nutrition?
Starch
Cellulose
Dietary Fiber
Describe the structure of starch
A chain of glucose molecules joined by alpha bonds
What can break starch down? What can digest starch?
Amylase enzyme can break it down
All of the domestic species can easily digest starch
What is cellulose? Describe the structure
Plant fibre
Structured like starch, however it has beta bonds instead of alpha bonds
True or False:
All species can easily digest cellulose
False, has varying digestibility in animals
What does adding more fibre to the diet help with?
Can be very helpful in both diarrhoea and constipation
What will owners note when their pets are placed on a high-fibre diet?
They will have much larger stools than before the dietary change
High fibre levels can increase what? Define
Flatulence: Accumulation of gas in the intestinal tract
All proteins are composed of _____ _____; they join into a unique _____ sequence
Amino acids
Chain
What is a dipeptide? What is a polypeptide?
Dipeptide: Two amino acids
Polypeptide: Chains of up to 100 amino acids
Foods high in protein are broken down into _____ _____, which are then reassemble in a ________ order to form a variety of important ____ ________
Amino acids
Specific
Body proteins
Protein is __% _________
Protein is the primary source of ________ in the diet
Also contains some minerals ______, __________, ____, and ______
16% Nitrogen
Nitrogen
Sulfur
Phosphorus
Iron
Iodine
True or False:
Protein is the fundamental structural material of every cell in the body
True; The largest dry weight portion of the human body is protein
What does the deficiency of protein often show as?
Poor growth or low body weight
What is excess protein used for?
Used as an energy source or converted to fat
Metabolism of protein produces _______ which is converted in the _____ to ____. ____ released into the blood and must be cleared by the ______
Ammonia
Liver
Urea
Urea
Kidney
With decreased kidney function, what can happen?
There can be an increase in nitrogenous waste
Protein makes up the bulk of the _______, ________ ______, _____, ______, ____, ____, and _____, and it is a vital part of __________ substances such as _______, ________, and _____ ______
Muscles
Internal organs
Brain
Nerves
Skin
Hair
Nails
Regulatory
Enzymes
Hormones
Blood plasma
What will a lack of protein result in?
Poor appearance to their coats and are more susceptible to disease
_________ amino acids must be supplied from the ____
Essential
Diet
___-_________ amino acids can be synthesized from other _____ _____
Non-essential
Amino acids
True or False:
All species has the same essential amino acid requirements
False; Each species has its own essential amino acid requirements
State the essential amino acids of the dog (10)
Arginine
Histidine
Isoleucine
Leucine
Lysine
Methionine
Phenylalanine
Threonine
Tryptophan
Valine
What is the difference between the essential amino acids of the dog and the cats?
Cats have all the same essential amino acids as dogs, plus Taurine
Lipids are composed of ___ elements. List and describe them
Two
Fats: Solid at room temperature
Oils: Liquid at room temperature
Fats are _________ ____, oils are ___________ ____
Saturated fats
Unsaturated fats