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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. ____________ creates cholesterol - estrogen and pheromones.
Lipids
Glycerol - fatty acid
Sterols
carbohydrates - proteins - and lipids.
2. Starches are _______ polysaccharides - stores energy for _______.
simple sugars
plant
Polysaccharides
Non-polar
3. Every living thing requires a constant supply of __________ ___ ____________.
lipds
energy and molecules
Lipids
Primary Protein Structure
4. ______ of carbs = 1680 kJ of energy.
vitamins and minerals
100 g
Starches
Non-polar
5. Triglycerides can be _____________ - or _______________.
Carbohydrates
energy and molecules
Unsaturated Triglycerides
saturated - unsaturated
6. The three types of Polysaccharides are starch - glycogen - and _____________.
peptide bond
Protein structures
cellulose
amylose
7. All _____________ have different proteins (amino acids)
Anabolism
Enzymes
Animals
Micronutrients
8. Nucleic acids are composed of sugar ____________ - and nitrogenous bases.
Monosaccharides
Quartenary Protein Structure
simple sugars
phosphate
9. _____________ look like amylopectin but only have 16-24 glucose on each branch.
nitrogenous
Hormones
Carbohydrates
glycogen
10. There are __________ different kinds of Amino acids. __________ can be made in our bodies - while ________ is acquired through eating food.
Enzymes
Twenty - Twelve - Eight.
Support
synthesis
11. _______________ are fast sources of energy.
dehydration synthesis
Proteins
Carbohydrates
glycogen
12. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
three
starch
nitrogenous
starch
13. __________ = glucose + glucose.
Maltose
Twenty - Twelve - Eight.
dehydration
Lipids
14. The three types of Polysaccharides are starch - glycogen - and _____________.
Nucleic Acids
Coagulation
Essential amino acids
cellulose
15. Proteins create ___________ that bring reactants together faster or slower.
sugar - phosphate - nitrogenous
Lipids
Polysaccharides
Enzymes
16. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.
Double layered cell membrane
metabolism
Tertiary Protein Structure
Maltose
17. ____________ creates cholesterol - estrogen and pheromones.
Sterols
Lipids
amino acids
Sucrose
18. ______ are energy storage compounds.
Lipids
Glucose
Macronutrients
energy and molecules
19. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.
Polymers
dehydration synthesis
amylopectin
glycogen
20. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.
Carbohydrates
Essential amino acids
Lipids
plant cells
21. Macronutrients consists of carbohydrates - __________ - and lipids.
proteins
Twenty - Twelve - Eight.
simple sugars
Hormones
22. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
Macronutrients
Polymers
starch - glycogen - cellulose
Unsaturated Triglycerides
23. _________________ are made of a single sugar unit.
Saturated Triglycerides
Monosaccharides
Carbohydrates
Glucose - Galactose - Fructose
24. Macronutrients consists of _______________ - _________ - and _______.
Key components
carbohydrates - proteins - and lipids.
Coagulation
Anabolism
25. _____________ contain up to 1000 glucose molecules linked together.
amylose
Isomers
Four
Proteins
26. Some examples of Monosaccharides are _________ - Galactose - Fructose.
Quartenary Protein Structure
Four
Glucose
dehydration synthesis
27. Vitamins and Minerals are often found in __________ _________.
Monosaccharides
amino acid - hydrogen - carboxyl group - are-group
plant
complex chemicals
28. _____________ _____________ _____________- coils of amino acids.
Coagulation
Nucleic Acids
Secondary Protein Structure
cellulose
29. _____________ store energy in the form of fat.
Support
Lipids
Polymers
Monosaccharides
30. Starches are _______ polysaccharides - stores energy for _______.
proteins
Hydrophilic - hydrophobic
plant
Key components
31. _________________ are made of a single sugar unit.
Anabolism
Monosaccharides
Maltose
sugar
32. 100 g of fat = __________ of energy.
Hormones
3870 kJ
synthesis
four
33. _____________ _____________ _____________- a single chain of sequenced amino acids.
Lipids
Primary Protein Structure
Proteins
three
34. _____________ are made of one glycerol and three fatty acid chains.
sugar - phosphate - nitrogenous
Lipids
Motion
Triglycerides
35. The three types of Polysaccharides are _____________ - _____________ - and _____________.
starch - glycogen - cellulose
Saturated Triglycerides
Amylose - amylopectin
Monosaccharides
36. _______ are non-polar molecules.
Lipids
Maltose
Twenty - Twelve - Eight.
Enzymes
37. _____________ is when a protein changes shape permanently.
Essential amino acids
Carbohydrates
four
Coagulation
38. Lipids are ____ ______________ in cell membranes.
Key components
Lipids
vitamins and minerals
cushion - insulates
39. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.
Carbohydrates
Non-soluble
1680 kJ
Denaturation
40. The two types of starches are ___________ - and ______________.
Amylose - amylopectin
sugar - phosphate - nitrogenous
four
Fructose
41. _____________ _____________ _____________- the are groups interact to change coil structure.
Four
Nucleic Acids
plant cells
Tertiary Protein Structure
42. _____________ look like amylopectin but only have 16-24 glucose on each branch.
vitamins and minerals
Carbohydrates
glycogen
Transport
43. ____________ _______ are genetic material that directs cell activity.
Fructose
synthesis
dehydration
Nucleic Acids
44. Lipids are used to make _____________.
simple sugars
Enzymes
Hormones
proteins
45. ___________: to lose a water molecule.
Lipids
dehydration
vitamins and minerals
plant cells
46. Proteins are composed of ______ ______.
Hormones
Carbohydrates
Polar - non-polar
amino acids
47. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.
Glycerol - fatty acid
simple sugars
Double layered cell membrane
Carbohydrates
48. Proteins create _____________ that affect growth and serve as messengers.
Hormones
Primary Protein Structure
Essential amino acids
metabolism
49. _____________ _____________ _____________- the are groups interact to change coil structure.
Glucose
Polar - non-polar
Isomers
Tertiary Protein Structure
50. Monosaccharides are also called ________ __________.
Glycerol - fatty acid
nitrogenous
simple sugars
100 g