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Test your basic knowledge |
Biology: Essential Nutrients
Start Test
Study First
Subjects
:
science
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. ______ of fat = 3870 kJ of energy.
100g
Enzymes
Fructose
Carbohydrates
2. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
metabolism
Unsaturated Triglycerides
Double layered cell membrane
carbohydrates - proteins - and lipids.
3. There are _____ types of protein structure.
Key components
four
proteins
Denaturation
4. ____________: when molecules have the same chemical formula but different structures.
Isomers
Lipids
Unsaturated Triglycerides
sugar - phosphate - nitrogenous
5. Starches are _______ polysaccharides - stores energy for _______.
plant
Lactose
Saturated Triglycerides
Polysaccharides
6. There are ______ kinds of lipids.
Four
Tertiary Protein Structure
proteins
Support
7. _____________ _____________ _____________- Two or more different tertiary structures interact forming large structure for a single protein.
Support
Carbohydrates
Quartenary Protein Structure
lipds
8. _____________ are made of one glycerol and three fatty acid chains.
Triglycerides
Non-soluble
Disaccharides
Phospholipids
9. Lipids __________ - and ____________ organs.
vitamins and minerals
cushion - insulates
Amylose - amylopectin
1680 kJ
10. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
Lipids
sugar molecules
nitrogenous
Isomers
11. _____________ are made of building blocks called amino acids. Found in meat - eggs - fish - nuts - beans - dairy.
Proteins
Secondary Protein Structure
Tertiary Protein Structure
Quartenary Protein Structure
12. _______________ are fast sources of energy.
Lipids
plant cells
1680 kJ
Carbohydrates
13. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.
Catabolism
sugar
Carbohydrates
Monosaccharides
14. Proteins are made when many many amino acids combine together through _____________ _____________.
Amylose - amylopectin
Galactose
100g
dehydration synthesis
15. __________ are the structural components of the cell.
complex chemicals
Hormones
Primary Protein Structure
Proteins
16. Macronutrients consists of _______________ - _________ - and _______.
metabolism
amino acid - hydrogen - carboxyl group - are-group
carbohydrates - proteins - and lipids.
sugar - phosphate - nitrogenous
17. _______ are non-polar molecules.
Lipids
3870 kJ
Saturated Triglycerides
Sucrose
18. _________________ are made of a single sugar unit.
Cellulose
Fructose
100g
Monosaccharides
19. Lipids are _____________ (does not dissolve in water).
three
Triglycerides - phospholipids - waxes - sterols
amino acid - hydrogen - carboxyl group - are-group
Non-soluble
20. Nucleic acids are composed of _______ - phosphate - and nitrogenous bases.
Saturated Triglycerides
sugar
Carbohydrates
Twenty - Twelve - Eight.
21. Proteins create _____________ that affect growth and serve as messengers.
Hormones
four
Isomers
Motion
22. Proteins help _____________ important substances to different areas of the body.
vitamins and minerals
Protein structures
Micronutrients
Transport
23. Vitamins and Minerals are often found in __________ _________.
Carbohydrates
peptide bond
Lipids
complex chemicals
24. ________________ consists of Vitamins and Minerals - and Nucleic Acids.
dehydration synthesis
Unsaturated Triglycerides
Starches
Micronutrients
25. _______________ are made of all sugar molecules.
plant
Disaccharides
Carbohydrates
Key components
26. There are _____ types of protein structure.
four
plant cells
Protein structures
100g
27. The four kinds of lipids are _______________ - _______________ - ________ - and ___________.
glycogen
Lipids
Denaturation
Triglycerides - phospholipids - waxes - sterols
28. ___________: to lose a water molecule.
Triglycerides - phospholipids - waxes - sterols
dehydration
Four
Monosaccharides
29. Proteins help form antibodies for _____________.
amylose
cellulose
Defense
Amylose - amylopectin
30. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.
Cellulose
Tertiary Protein Structure
dehydration synthesis
Lipids
31. Amino acids are made of ________ _____ - _____________ - ___________ _______ - and _____________.
glycogen
Micronutrients
amino acid - hydrogen - carboxyl group - are-group
100g
32. Every living thing requires a constant supply of __________ ___ ____________.
peptide bond
Transport
energy and molecules
Twenty - Twelve - Eight.
33. __________ = glucose + glucose.
Monosaccharides
Cellulose
amylopectin
Maltose
34. _____________ _____________ _____________- a single chain of sequenced amino acids.
Primary Protein Structure
Anabolism
Polysaccharides
Motion
35. Some examples of Monosaccharides are _________ - Galactose - Fructose.
vitamins and minerals
Transport
Glucose
synthesis
36. ______________ _______________ : single bonds exist between carbons - they are stable and hard to break down so they will remain in our body longer. animal sources
Saturated Triglycerides
synthesis
Triglycerides
Lipids
37. Proteins create ___________ that bring reactants together faster or slower.
sugar molecules
Enzymes
Protein structures
Lipids
38. ________ includes all fats and oils.
nucleic acids
Lipids
Enzymes
Proteins
39. ________ are used to maintain a body temperature.
Transport
Isomers
Carbohydrates
Lipids
40. Macronutrients consists of carbohydrates - proteins - and _______.
three
lipds
phosphate
amylose
41. ___________ have different properties. Ex - fructose is sweeter.
Key components
Transport
Key components
Isomers
42. ______ of carbs = 1680 kJ of energy.
100 g
Saturated Triglycerides
glycogen
cellulose
43. ____________ creates cholesterol - estrogen and pheromones.
Sucrose
Essential amino acids
Sterols
Glucose - Galactose - Fructose
44. The two types of starches are ___________ - and ______________.
Amylose - amylopectin
Proteins
Animals
Dehydration synthesis
45. Nucleic acids are composed of _______ - phosphate - and nitrogenous bases.
Hormones
vitamins and minerals
sugar
Proteins
46. Proteins help keep our cells and muscles in _________.
cushion - insulates
Nucleic Acids
synthesis
Motion
47. _____________ are found in plant cell walls.
Anabolism
Disaccharides
Cellulose
Enzymes
48. _____________ _____________ _____________- coils of amino acids.
amylose
dehydration synthesis
vitamins and minerals
Secondary Protein Structure
49. ________ are very stable insoluble molecules. Used for waterproofing/ protection. Ex. Candles etc -.
energy and molecules
amino acids
Tertiary Protein Structure
Waxes
50. ______ are the structural components of cell membranes.
vitamins and minerals
Isomers
Lipids
Carbohydrates