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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. _____________ ________ _____ are the eight amino acids our body cannot make.
Tertiary Protein Structure
Sterols
Essential amino acids
Lipids
2. Breakdown of more complex substances into simpler ones with release of energy.
sugar
Hydrolysis
Catabolism
complex chemicals
3. The two types of starches are ___________ - and ______________.
Amylose - amylopectin
Carbohydrates
Hydrolysis
Lipids
4. _______________ are made of all sugar molecules.
peptide bond
Macronutrients
Non-soluble
Carbohydrates
5. _____________ is when a protein changes shape permanently.
Waxes
glycogen
Coagulation
three
6. Monosaccharides are also called ________ __________.
Catabolism
Proteins
proteins
simple sugars
7. _________________ are made of a single sugar unit.
starch
Hormones
phosphate
Monosaccharides
8. The three types of Polysaccharides are starch - glycogen - and _____________.
cellulose
Enzymes
3870 kJ
100g
9. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.
Double layered cell membrane
nitrogenous
Anabolism
Polysaccharides
10. __________ = glucose + fructose.
Lipids
carbohydrates - proteins - and lipids.
Sucrose
Lipids
11. Phospholipds have a _____________ head - and a _______________ tail.
cellulose
cellulose
Lipids
Hydrophilic - hydrophobic
12. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.
cushion - insulates
Triglycerides - phospholipids - waxes - sterols
Enzymes
metabolism
13. _____________ are found in plant cell walls.
sugar
Essential amino acids
Enzymes
Cellulose
14. All lipids are made of two structural units: ___________ - and _______ ______.
complex chemicals
Sucrose
Glycerol - fatty acid
Coagulation
15. ________________ usually have a molecular formula ratio of C:H:O in 1:2:1.
Monosaccharides
3870 kJ
amylopectin
Lipids
16. ____________ creates cholesterol - estrogen and pheromones.
Support
amylopectin
vitamins and minerals
Sterols
17. Proteins create _____________ that affect growth and serve as messengers.
plant cells
Hormones
sugar
proteins
18. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
Unsaturated Triglycerides
sugar molecules
100 g
amylopectin
19. _____________ store energy in the form of fat.
Motion
vitamins and minerals
Lipids
Unsaturated Triglycerides
20. _____________ is where animals store carbohydrates.
Non-polar
glycogen
Carbohydrates
Quartenary Protein Structure
21. The three types of Polysaccharides are starch - glycogen - and _____________.
Non-soluble
cellulose
amylopectin
Glucose - Galactose - Fructose
22. __________ = glucose + glucose.
Maltose
sugar
starch - glycogen - cellulose
Sterols
23. __________ _____ ___________ help in chemical reactions.
Saturated Triglycerides
vitamins and minerals
Polar - non-polar
Sterols
24. Carbohydrates are made of all ________ ____________.
Catabolism
Triglycerides - phospholipids - waxes - sterols
sugar molecules
Carbohydrates
25. 100 g of carbs = __________ of energy.
cellulose
Motion
Lipids
1680 kJ
26. _____________ contain many branches that make up 24-36 glucose molecules.
Anabolism
amylopectin
three
Denaturation
27. ______ of fat = 3870 kJ of energy.
100g
Glycerol - fatty acid
Motion
cushion - insulates
28. Vitamins and Minerals are often found in __________ _________.
complex chemicals
Secondary Protein Structure
Animals
nitrogenous
29. Carbohydrates are made of all ________ ____________.
cellulose
Polysaccharides
sugar molecules
simple sugars
30. _____________ look like amylopectin but only have 16-24 glucose on each branch.
synthesis
Sucrose
Triglycerides
glycogen
31. Micronutrients consists of Vitamins and Minerals - and _________ ______.
proteins
vitamins and minerals
nucleic acids
dehydration
32. _______________ are made of all sugar molecules.
100g
two monosaccharides
Hormones
Carbohydrates
33. _______________ are fast sources of energy.
Carbohydrates
plant cells
two monosaccharides
Support
34. __________ = glucose + glucose.
Double layered cell membrane
glycogen
Carbohydrates
Maltose
35. Synthesis of more complex substances from simpler ones.
vitamins and minerals
Proteins
Anabolism
starch
36. _________________ are made of a single sugar unit.
Macronutrients
Monosaccharides
1680 kJ
amylopectin
37. ________ includes all fats and oils.
two monosaccharides
complex chemicals
Carbohydrates
Lipids
38. Lipids are ____ ______________ in cell membranes.
Key components
Hydrophilic - hydrophobic
Essential amino acids
Lipids
39. ______________ are acquired from plants. (Photosynthesis -> glucose)
Maltose
Isomers
Carbohydrates
Micronutrients
40. The three types of Polysaccharides are _____________ - glycogen - and cellulose.
Hydrolysis
starch
lipds
Dehydration synthesis
41. __________ are needed for fat soluble vitamins.
Disaccharides
starch
Lipids
Carbohydrates
42. Some examples of Monosaccharides are _________ - ___________ - __________.
Hydrophilic - hydrophobic
1680 kJ
Glucose - Galactose - Fructose
glycogen
43. Nucleic acids are composed of _______ - phosphate - and nitrogenous bases.
Triglycerides
Carbohydrates
sugar
3870 kJ
44. ____________: more than one sugar molecule.
Quartenary Protein Structure
two monosaccharides
Polymers
Secondary Protein Structure
45. _____________ _____________ _____________- a single chain of sequenced amino acids.
Primary Protein Structure
Carbohydrates
Polysaccharides
Coagulation
46. _____________ molecules are not negatively or positively charged.
Non-polar
nitrogenous
Lipids
Proteins
47. ________ are very stable insoluble molecules. Used for waterproofing/ protection. Ex. Candles etc -.
Fructose
Waxes
Triglycerides - phospholipids - waxes - sterols
simple sugars
48. ______ of carbs = 1680 kJ of energy.
sugar - phosphate - nitrogenous
dehydration synthesis
100 g
Non-polar
49. _______________ consists of carbohydrates - proteins - and lipids.
3870 kJ
Lipids
Sterols
Macronutrients
50. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
Unsaturated Triglycerides
Twenty - Twelve - Eight.
Phospholipids
saturated - unsaturated