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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. Carbohydrates are made of all ________ ____________.
sugar
sugar molecules
starch
Monosaccharides
2. _____________ contain many branches that make up 24-36 glucose molecules.
nitrogenous
Isomers
100g
amylopectin
3. _______________ are made of all sugar molecules.
simple sugars
starch
Galactose
Carbohydrates
4. _____________ are found in plant cell walls.
Coagulation
Cellulose
amylopectin
Twenty - Twelve - Eight.
5. ___________ have different properties. Ex - fructose is sweeter.
plant cells
cellulose
complex chemicals
Isomers
6. The three types of Polysaccharides are _____________ - _____________ - and _____________.
carbohydrates - proteins - and lipids.
starch - glycogen - cellulose
Quartenary Protein Structure
Animals
7. Nucleic acids are composed of _______ - phosphate - and nitrogenous bases.
dehydration
sugar
Hydrophilic - hydrophobic
Nucleic Acids
8. _____________ is when a protein changes shape temporarily.
Denaturation
sugar - phosphate - nitrogenous
plant cells
Maltose
9. ____________ creates cholesterol - estrogen and pheromones.
nitrogenous
Enzymes
Sterols
Micronutrients
10. The chemical reaction for glycerol and fatty acids combining together to form triglyceride is also called _______________ _____________.
Dehydration synthesis
Disaccharides
Proteins
Key components
11. _____________ is where animals store carbohydrates.
amylopectin
Carbohydrates
glycogen
cushion - insulates
12. _______________ are made of glycerol and two fatty acids and a phosphate group.
Micronutrients
Triglycerides
Lactose
Phospholipids
13. Proteins help form antibodies for _____________.
carbohydrates - proteins - and lipids.
lipds
Saturated Triglycerides
Defense
14. ________________ consists of Vitamins and Minerals - and Nucleic Acids.
Carbohydrates
Denaturation
Nucleic Acids
Micronutrients
15. Some examples of Monosaccharides are _________ - Galactose - Fructose.
plant cells
carbohydrates
Glucose
Hormones
16. Amino acids are made of ________ _____ - _____________ - ___________ _______ - and _____________.
Lipids
Isomers
3870 kJ
amino acid - hydrogen - carboxyl group - are-group
17. ______ of carbs = 1680 kJ of energy.
Macronutrients
Enzymes
100 g
amylopectin
18. All _____________ have different proteins (amino acids)
sugar molecules
Monosaccharides
Animals
Twenty - Twelve - Eight.
19. __________________________ can be changed when exposed to excess heat - radiation - or change in pH.
saturated - unsaturated
proteins
Protein structures
cushion - insulates
20. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.
Galactose
Hormones
Double layered cell membrane
glycogen
21. The four kinds of lipids are _______________ - _______________ - ________ - and ___________.
Triglycerides - phospholipids - waxes - sterols
Hydrolysis
glycogen
100 g
22. Micronutrients consists of __________ _____ _________ - and Nucleic Acids.
simple sugars
cushion - insulates
vitamins and minerals
Double layered cell membrane
23. ___________: combining two things together to make something new.
saturated - unsaturated
Lactose
Essential amino acids
synthesis
24. There are ________ types of carbohydrates.
three
Hormones
Disaccharides
Lipids
25. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
3870 kJ
Unsaturated Triglycerides
amylopectin
amylopectin
26. ______ of fat = 3870 kJ of energy.
Sucrose
Secondary Protein Structure
Triglycerides
100g
27. _______________ are fast sources of energy.
Secondary Protein Structure
Amylose - amylopectin
Protein structures
Carbohydrates
28. Starches are _______ polysaccharides - stores energy for _______.
plant
Animals
Tertiary Protein Structure
proteins
29. Amino acids are made of ________ _____ - _____________ - ___________ _______ - and _____________.
amino acid - hydrogen - carboxyl group - are-group
plant
cushion - insulates
synthesis
30. Lipids are _____________ (does not dissolve in water).
plant cells
Non-soluble
metabolism
Glycerol - fatty acid
31. The four kinds of lipids are _______________ - _______________ - ________ - and ___________.
Lipids
starch - glycogen - cellulose
Triglycerides - phospholipids - waxes - sterols
dehydration
32. ______ are the structural components of cell membranes.
Amylose - amylopectin
peptide bond
Lipids
Hydrophilic - hydrophobic
33. Phospholipds have a _____________ head - and a _______________ tail.
Hydrophilic - hydrophobic
Enzymes
sugar
Carbohydrates
34. The two types of starches are ___________ - and ______________.
two monosaccharides
energy and molecules
Amylose - amylopectin
lipds
35. Nucleic acids are composed of sugar ____________ - and nitrogenous bases.
synthesis
phosphate
amylopectin
nitrogenous
36. ______________ are made of two monosaccharides combined together.
Sucrose
Disaccharides
Unsaturated Triglycerides
Lactose
37. Proteins __________ ligaments - tendons - and skin.
amylopectin
Animals
Support
Amylose - amylopectin
38. _____________ contain up to 1000 glucose molecules linked together.
Quartenary Protein Structure
amylose
Monosaccharides
vitamins and minerals
39. ________ are used to maintain a body temperature.
Essential amino acids
Glycerol - fatty acid
Lipids
Sterols
40. _____________ contain many branches that make up 24-36 glucose molecules.
amylose
amylopectin
Polar - non-polar
Carbohydrates
41. 100 g of fat = __________ of energy.
complex chemicals
3870 kJ
Carbohydrates
dehydration synthesis
42. _______________ are fast sources of energy.
Carbohydrates
Dehydration synthesis
Dehydration synthesis
Glucose
43. Phospholipds have a _____________ head - and a _______________ tail.
Hydrophilic - hydrophobic
Non-polar
Glucose - Galactose - Fructose
nitrogenous
44. ____________ _______ are genetic material that directs cell activity.
Nucleic Acids
amino acids
Isomers
starch
45. Proteins help _____________ important substances to different areas of the body.
Enzymes
Transport
starch - glycogen - cellulose
plant cells
46. _______________ consists of carbohydrates - proteins - and lipids.
100 g
Macronutrients
synthesis
Carbohydrates
47. Some examples of Monosaccharides are _________ - ___________ - __________.
glycogen
Glucose - Galactose - Fructose
Hormones
dehydration synthesis
48. 100 g of fat = __________ of energy.
Lipids
Lipids
3870 kJ
starch
49. _______________ consists of carbohydrates - proteins - and lipids.
Fructose
sugar molecules
Macronutrients
Cellulose
50. _____________ are made of one glycerol and three fatty acid chains.
Triglycerides
saturated - unsaturated
Anabolism
Non-polar