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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. Macronutrients consists of ______________ - proteins - and lipids.
Hormones
Cellulose
carbohydrates
complex chemicals
2. __________ are the structural components of the cell.
Lipids
peptide bond
Anabolism
Proteins
3. Lipids are ____ ______________ in cell membranes.
Hormones
Key components
Lipids
Anabolism
4. Lipids __________ - and ____________ organs.
Hormones
glycogen
cushion - insulates
carbohydrates
5. ________ are used to maintain a body temperature.
Lipids
Glucose - Galactose - Fructose
cushion - insulates
Triglycerides
6. Triglycerides can be _____________ - or _______________.
3870 kJ
Waxes
dehydration synthesis
saturated - unsaturated
7. __________ are needed for fat soluble vitamins.
Micronutrients
Glucose
Phospholipids
Lipids
8. ______________ are made of two monosaccharides combined together.
Disaccharides
Hormones
Hydrophilic - hydrophobic
amino acids
9. Macronutrients consists of carbohydrates - proteins - and _______.
Monosaccharides
peptide bond
amylopectin
lipds
10. ____________ creates cholesterol - estrogen and pheromones.
plant
Sterols
Protein structures
amylopectin
11. _______ are non-polar molecules.
Lipids
Carbohydrates
Glucose - Galactose - Fructose
proteins
12. There are ________ types of carbohydrates.
Carbohydrates
Galactose
lipds
three
13. _______________ are fast sources of energy.
Carbohydrates
Micronutrients
Dehydration synthesis
sugar molecules
14. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
three
Secondary Protein Structure
nitrogenous
glycogen
15. _______________ is the primary energy source for cells.
Carbohydrates
Saturated Triglycerides
Waxes
cellulose
16. ____________: more than one sugar molecule.
Polymers
Carbohydrates
Anabolism
Sucrose
17. __________ _____ ___________ help in chemical reactions.
starch - glycogen - cellulose
glycogen
Amylose - amylopectin
vitamins and minerals
18. There are __________ different kinds of Amino acids. __________ can be made in our bodies - while ________ is acquired through eating food.
Galactose
Key components
Twenty - Twelve - Eight.
1680 kJ
19. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.
Lactose
Quartenary Protein Structure
Proteins
Carbohydrates
20. The chemical reaction for glycerol and fatty acids combining together to form triglyceride is also called _______________ _____________.
Double layered cell membrane
glycogen
Macronutrients
Dehydration synthesis
21. ______________ are acquired from plants. (Photosynthesis -> glucose)
four
1680 kJ
Isomers
Carbohydrates
22. __________ _____ ___________ help in chemical reactions.
vitamins and minerals
starch - glycogen - cellulose
energy and molecules
Key components
23. Phospholipds have a _____________ head - and a _______________ tail.
Hydrophilic - hydrophobic
Protein structures
Sucrose
Non-polar
24. The three types of Polysaccharides are _____________ - _____________ - and _____________.
Waxes
Lipids
Triglycerides - phospholipids - waxes - sterols
starch - glycogen - cellulose
25. ______ of carbs = 1680 kJ of energy.
Primary Protein Structure
Hydrophilic - hydrophobic
100 g
100g
26. ____________: when molecules have the same chemical formula but different structures.
Isomers
Polymers
Nucleic Acids
Sucrose
27. Disaccharides are made of _____ __________________ combined together.
two monosaccharides
Coagulation
carbohydrates
Motion
28. _______________ can have one single sugar molecule or can be polymers.
three
Carbohydrates
lipds
Fructose
29. Some examples of Monosaccharides are _________ - ___________ - __________.
Key components
Monosaccharides
Glucose - Galactose - Fructose
Proteins
30. Monosaccharides are also called ________ __________.
amino acids
Protein structures
Non-polar
simple sugars
31. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.
Motion
metabolism
100 g
Protein structures
32. Proteins are made when many many amino acids combine together through _____________ _____________.
dehydration synthesis
sugar molecules
Animals
Glycerol - fatty acid
33. _____________ is when a protein changes shape temporarily.
Lipids
dehydration synthesis
Carbohydrates
Denaturation
34. __________ = galactose + glucose
energy and molecules
Waxes
Polysaccharides
Lactose
35. ________ includes all fats and oils.
Amylose - amylopectin
carbohydrates
Lipids
carbohydrates - proteins - and lipids.
36. Lipids are used to make _____________.
Hormones
100 g
Triglycerides
Quartenary Protein Structure
37. Nucleic acids are composed of _______ - ____________ - and _____________ bases.
Primary Protein Structure
sugar - phosphate - nitrogenous
Amylose - amylopectin
3870 kJ
38. Synthesis of more complex substances from simpler ones.
Cellulose
100 g
Anabolism
Transport
39. Lipids are _____________ (does not dissolve in water).
Non-soluble
Proteins
Waxes
glycogen
40. _____________ _____________ _____________- coils of amino acids.
Polymers
Non-soluble
Triglycerides
Secondary Protein Structure
41. Proteins help keep our cells and muscles in _________.
Dehydration synthesis
Waxes
Motion
Defense
42. Lipids are _____________ (does not dissolve in water).
Glucose - Galactose - Fructose
Four
cushion - insulates
Non-soluble
43. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.
metabolism
saturated - unsaturated
Double layered cell membrane
Four
44. ___________ have different properties. Ex - fructose is sweeter.
Isomers
Carbohydrates
Unsaturated Triglycerides
Lipids
45. _______________ are made of glycerol and two fatty acids and a phosphate group.
Amylose - amylopectin
Proteins
Anabolism
Phospholipids
46. _____________ _____________ _____________- a single chain of sequenced amino acids.
Primary Protein Structure
Glycerol - fatty acid
Hydrophilic - hydrophobic
Coagulation
47. __________________ are formed by MANY monosaccharides linked together.
saturated - unsaturated
Maltose
Carbohydrates
Polysaccharides
48. Starches are _______ polysaccharides - stores energy for _______.
four
Micronutrients
Catabolism
plant
49. _____________ _____________ _____________- Two or more different tertiary structures interact forming large structure for a single protein.
amylose
dehydration synthesis
carbohydrates
Quartenary Protein Structure
50. _____________ are plant polysaccharides - stores energy for plants.
Starches
100g
100 g
Glucose