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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. Nucleic acids are composed of sugar ____________ - and nitrogenous bases.
amino acids
phosphate
Lipids
Defense
2. Proteins __________ ligaments - tendons - and skin.
Enzymes
Support
Twenty - Twelve - Eight.
Coagulation
3. __________________________ can be changed when exposed to excess heat - radiation - or change in pH.
1680 kJ
Protein structures
nucleic acids
Quartenary Protein Structure
4. ___________ have different properties. Ex - fructose is sweeter.
carbohydrates
Isomers
Motion
Carbohydrates
5. __________ are the structural components of the cell.
carbohydrates
Cellulose
Proteins
starch
6. _______________ is the primary energy source for cells.
Carbohydrates
Lipids
peptide bond
Coagulation
7. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.
100 g
Carbohydrates
Denaturation
Disaccharides
8. _____________ contain up to 1000-6000 glucose molecules linked together.
sugar
amylopectin
synthesis
Essential amino acids
9. 100 g of carbs = __________ of energy.
Amylose - amylopectin
Support
1680 kJ
Hormones
10. All lipids are made of two structural units: ___________ - and _______ ______.
Disaccharides
Lipids
Glycerol - fatty acid
Saturated Triglycerides
11. _____________ _____________ _____________- the are groups interact to change coil structure.
Tertiary Protein Structure
Isomers
Nucleic Acids
Amylose - amylopectin
12. The chemical reaction for glycerol and fatty acids combining together to form triglyceride is also called _______________ _____________.
Lipids
Dehydration synthesis
synthesis
Triglycerides
13. __________ are needed for fat soluble vitamins.
Fructose
Hydrolysis
Phospholipids
Lipids
14. ____________ _______ are genetic material that directs cell activity.
Lipids
Nucleic Acids
Lipids
Hydrophilic - hydrophobic
15. All _____________ have different proteins (amino acids)
Defense
Animals
cushion - insulates
Maltose
16. ______ are the structural components of cell membranes.
glycogen
Glucose
Primary Protein Structure
Lipids
17. Triglycerides can be _____________ - or _______________.
Denaturation
Maltose
saturated - unsaturated
Amylose - amylopectin
18. _____________ are found in plant cell walls.
Sucrose
sugar
starch
Cellulose
19. _____________ are made of one glycerol and three fatty acid chains.
dehydration synthesis
Triglycerides
Carbohydrates
Maltose
20. Carbohydrates are structural material for ______ ______.
plant cells
Animals
Lipids
Fructose
21. Proteins create _____________ that affect growth and serve as messengers.
Lactose
Transport
Hormones
Starches
22. All _____________ have different proteins (amino acids)
Animals
Macronutrients
Support
cushion - insulates
23. _____________ look like amylopectin but only have 16-24 glucose on each branch.
Galactose
glycogen
synthesis
Twenty - Twelve - Eight.
24. Proteins create _____________ that affect growth and serve as messengers.
Non-soluble
four
Unsaturated Triglycerides
Hormones
25. _____________ contain up to 1000 glucose molecules linked together.
100 g
amylose
Isomers
Four
26. ________ are used to maintain a body temperature.
Lipids
Monosaccharides
3870 kJ
Proteins
27. _____________ contain up to 1000 glucose molecules linked together.
amylose
Dehydration synthesis
Lipids
Animals
28. _______________ are fast sources of energy.
Quartenary Protein Structure
Carbohydrates
two monosaccharides
sugar
29. __________ = glucose + glucose.
amino acid - hydrogen - carboxyl group - are-group
Hormones
amino acids
Maltose
30. Amino acids are made of ________ _____ - _____________ - ___________ _______ - and _____________.
sugar
100g
Lipids
amino acid - hydrogen - carboxyl group - are-group
31. The four kinds of lipids are _______________ - _______________ - ________ - and ___________.
Triglycerides - phospholipids - waxes - sterols
Lipids
Fructose
Carbohydrates
32. _______ are non-polar molecules.
Lipids
Phospholipids
amylopectin
glycogen
33. ___________: combining two things together to make something new.
Polymers
Polar - non-polar
Fructose
synthesis
34. _______________ are made of all sugar molecules.
Transport
simple sugars
Monosaccharides
Carbohydrates
35. _____________ are made of building blocks called amino acids. Found in meat - eggs - fish - nuts - beans - dairy.
Galactose
Lipids
Proteins
Waxes
36. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.
metabolism
Dehydration synthesis
Micronutrients
Lipids
37. The three types of Polysaccharides are starch - _____________ - and cellulose.
amino acids
glycogen
Key components
Primary Protein Structure
38. ______ are the structural components of cell membranes.
peptide bond
Lipids
starch
Polymers
39. ____________ _______ are genetic material that directs cell activity.
Nucleic Acids
Tertiary Protein Structure
Proteins
Enzymes
40. There are ______ kinds of lipids.
Four
Carbohydrates
Motion
Cellulose
41. ________ are very stable insoluble molecules. Used for waterproofing/ protection. Ex. Candles etc -.
Coagulation
Waxes
Hydrophilic - hydrophobic
Non-polar
42. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.
plant
dehydration synthesis
Coagulation
two monosaccharides
43. Starches are _______ polysaccharides - stores energy for _______.
sugar molecules
amino acids
Catabolism
plant
44. __________ _____ ___________ help in chemical reactions.
Tertiary Protein Structure
Key components
vitamins and minerals
plant
45. _______________ are made of glycerol and two fatty acids and a phosphate group.
Phospholipids
glycogen
Key components
Isomers
46. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.
Motion
Monosaccharides
simple sugars
dehydration synthesis
47. __________ = galactose + glucose
Waxes
four
Essential amino acids
Lactose
48. Every living thing requires a constant supply of __________ ___ ____________.
Isomers
energy and molecules
plant cells
Proteins
49. Breakdown of more complex substances into simpler ones with release of energy.
two monosaccharides
Protein structures
Catabolism
Animals
50. ______ are energy storage compounds.
Cellulose
Lipids
Phospholipids
Secondary Protein Structure