Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
What is nutrition? |
Nutrition is the way organisms obtain and use food. |
|
Why is food (Nutrition) required? |
For metabolism and the continuity of life. |
|
Name 6 non-metal elements in food. |
Carbon, Hydrogen, Nitrogen, Sulfur, Phosphorous, Oxygen.
|
|
Name 5 elements present in food, that are present in bodies of dissolved salts. |
Sodium, Magnesium, Potassium, Chlorine, Calcium. |
|
What name is given to the simplest of carbohydrates? |
Saccharide (Sugar unit) |
|
Name a catabolic process that produces Saccharides? |
Amylase turns starch into maltose. |
|
Name a structural polysaccharide in plants. |
Cellulose ( Plant cell walls) |
|
Give 2 functions of minerals in plants and animals. |
Magnesium: Formation of Chlorphyll Calcium : Formation of bones and teeth |
|
Name a fat soluble vitamin. |
Vitamin D ( Inefficiency = Rickets ) |
|
How does a phospholipid differ from a fat? |
Phospholipid = 1 glycerol, 2 fatty acid and phospholipid . Fat = 1 glycerol and 3 fatty acids. |
|
Is A ---> B+C+D catabolic or anabolic? |
Catabolic ( Breaking down of complex molecules to form simpler molecules, releasing energy) |
|
What Carbohydrate is always found in DNA? |
DeoxyRibose |
|
What is a biomolecule? |
Organic Chemicals produced and found in living organisms |
|
List 4 biomolecules. |
Lipids, Carbohydrates , proteins and vitamins |
|
What is general formula for carbs? |
Cx (H2O) y |
|
Name 2 Monosaccharides and 2 DiSaccharides. |
Mono: Glucose and Fructose Di: Maltose (GLucose + GLucose) Sucrose ( Glucose + Fructose) |
|
What is a Triglyceride? |
3 fatty acids and 1 glycerol molecule. |
|
What is a phospholipid? |
Fats that are composed of one glycerol and 2 fatty acids and 1 phosphate |
|
How are Proteins classified? Name 2 classifications of proteins. |
By their shape, Fibrous and Globular. |
|
Differ between Fibrous and Globular Proteins. |
Globular: Long chains of amino acids with lots of folding. Fibrous: Long straight chains of amino acids with little folding. |
|
Give 2 metabolic functions of proteins. |
Enzymes made from protein, they speed up chemical reactions Hormones made from protein, they regulate metabolism Antibodies made from protein |
|
Why is water needed? |
Medium for chemical reactions. Solvent. Transport. |
|
Name 2 categories of metabolism |
Anabolic , Catabolic (Cat breaks it down, big into small) (Ana builds it up, small to big) |
|
Does catabolic or anabolic release energy? |
Catabolic. |
|
Give 2 examples of catabolic and anabolic reactions. |
Ana: Photosynthesis & Protein Synthesis (Uses energy) Cat: Respiration & Digestion: ( Releases energy) |