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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. Phospholipids have a _______ head - and a _____________ tail.
Polar - non-polar
Dehydration synthesis
Nucleic Acids
Protein structures
2. _____________ is when a protein changes shape temporarily.
peptide bond
plant
starch - glycogen - cellulose
Denaturation
3. _____________ _____________ _____________- coils of amino acids.
Monosaccharides
Galactose
Secondary Protein Structure
Protein structures
4. ______ are energy storage compounds.
Key components
Transport
Polymers
Lipids
5. Nucleic acids are composed of _______ - ____________ - and _____________ bases.
Micronutrients
Fructose
sugar - phosphate - nitrogenous
glycogen
6. ___________: combining two things together to make something new.
two monosaccharides
glycogen
Essential amino acids
synthesis
7. The three types of Polysaccharides are starch - _____________ - and cellulose.
Fructose
glycogen
Protein structures
Quartenary Protein Structure
8. _____________ are found in plant cell walls.
sugar molecules
Cellulose
100 g
Quartenary Protein Structure
9. _____________ is when a protein changes shape permanently.
Four
Glucose
Coagulation
3870 kJ
10. __________ _____ ___________ help in chemical reactions.
vitamins and minerals
100g
sugar molecules
Lipids
11. __________ are the structural components of the cell.
vitamins and minerals
Lipids
metabolism
Proteins
12. Breakdown of more complex substances into simpler ones with release of energy.
metabolism
Tertiary Protein Structure
Proteins
Catabolism
13. Monosaccharides are also called ________ __________.
Lipids
Triglycerides - phospholipids - waxes - sterols
simple sugars
Monosaccharides
14. _________________ are made of a single sugar unit.
Monosaccharides
glycogen
starch
vitamins and minerals
15. Some examples of Monosaccharides are Glucose - ___________ - Fructose.
Galactose
Lipids
Lipids
two monosaccharides
16. ___________ are important for long-term storage of energy.
Sterols
Carbohydrates
Lipids
dehydration synthesis
17. All _____________ have different proteins (amino acids)
amylose
Lipids
Glucose - Galactose - Fructose
Animals
18. ____________ creates cholesterol - estrogen and pheromones.
simple sugars
Lipids
Sterols
Lactose
19. ________ are very stable insoluble molecules. Used for waterproofing/ protection. Ex. Candles etc -.
Waxes
100 g
Proteins
Lipids
20. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
carbohydrates - proteins - and lipids.
Unsaturated Triglycerides
Proteins
plant
21. _____________ is when a protein changes shape permanently.
Carbohydrates
Waxes
three
Coagulation
22. Macronutrients consists of carbohydrates - __________ - and lipids.
saturated - unsaturated
two monosaccharides
Triglycerides - phospholipids - waxes - sterols
proteins
23. The three types of Polysaccharides are starch - _____________ - and cellulose.
glycogen
Proteins
peptide bond
Lipids
24. _______________ is the primary energy source for cells.
starch
Carbohydrates
Lipids
Isomers
25. Some examples of Monosaccharides are Glucose - Galactose - __________.
Lipids
Fructose
cellulose
Glucose - Galactose - Fructose
26. Macronutrients consists of carbohydrates - __________ - and lipids.
Protein structures
Motion
proteins
Starches
27. ____________ _______ are genetic material that directs cell activity.
Essential amino acids
sugar molecules
two monosaccharides
Nucleic Acids
28. ________________ usually have a molecular formula ratio of C:H:O in 1:2:1.
nucleic acids
two monosaccharides
starch
Monosaccharides
29. Micronutrients consists of __________ _____ _________ - and Nucleic Acids.
vitamins and minerals
Four
Lipids
Motion
30. Lipids are used to make _____________.
Hormones
glycogen
Polar - non-polar
Proteins
31. ______________ are made of two monosaccharides combined together.
vitamins and minerals
Maltose
Disaccharides
3870 kJ
32. Proteins are composed of ______ ______.
amino acids
energy and molecules
Carbohydrates
Unsaturated Triglycerides
33. _____________ contain up to 1000-6000 glucose molecules linked together.
simple sugars
amylopectin
1680 kJ
Anabolism
34. Proteins __________ ligaments - tendons - and skin.
Support
Monosaccharides
Lipids
Essential amino acids
35. Synthesis of more complex substances from simpler ones.
Carbohydrates
Dehydration synthesis
two monosaccharides
Anabolism
36. _______________ are made of all sugar molecules.
sugar - phosphate - nitrogenous
Triglycerides - phospholipids - waxes - sterols
Carbohydrates
Coagulation
37. ________ are used to maintain a body temperature.
Lipids
Sterols
simple sugars
plant
38. ______________ _______________ : 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
Carbohydrates
Dehydration synthesis
two monosaccharides
39. There are __________ different kinds of Amino acids. __________ can be made in our bodies - while ________ is acquired through eating food.
Twenty - Twelve - Eight.
proteins
cellulose
Double layered cell membrane
40. There are ______ kinds of lipids.
amylopectin
Four
Macronutrients
Proteins
41. _____________ ________ _____ are the eight amino acids our body cannot make.
Saturated Triglycerides
Essential amino acids
Twenty - Twelve - Eight.
Lipids
42. _______________ consists of carbohydrates - proteins - and lipids.
Macronutrients
plant
Coagulation
Phospholipids
43. ____________: when molecules have the same chemical formula but different structures.
Lipids
Isomers
carbohydrates - proteins - and lipids.
Lipids
44. ___________: to lose a water molecule.
dehydration
amino acids
Non-soluble
Glycerol - fatty acid
45. Lipids are _____________ (does not dissolve in water).
Twenty - Twelve - Eight.
plant cells
100g
Non-soluble
46. _____________ are made of one glycerol and three fatty acid chains.
Triglycerides
Four
Non-polar
energy and molecules
47. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
nitrogenous
Support
Maltose
Lipids
48. ______________ _______________ : single bonds exist between carbons - they are stable and hard to break down so they will remain in our body longer. animal sources
Unsaturated Triglycerides
Saturated Triglycerides
three
Isomers
49. 100 g of fat = __________ of energy.
starch - glycogen - cellulose
3870 kJ
lipds
plant cells
50. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.
Sucrose
Transport
Nucleic Acids
metabolism