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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. ____________: when molecules have the same chemical formula but different structures.
phosphate
Isomers
Tertiary Protein Structure
cushion - insulates
2. ____________ creates cholesterol - estrogen and pheromones.
Unsaturated Triglycerides
Fructose
Sterols
four
3. __________ = galactose + glucose
Lactose
Support
Tertiary Protein Structure
Unsaturated Triglycerides
4. _____________ is when a protein changes shape temporarily.
Twenty - Twelve - Eight.
Denaturation
Starches
dehydration synthesis
5. _____________ molecules are not negatively or positively charged.
amino acids
peptide bond
Non-polar
four
6. _________________ are made of a single sugar unit.
four
Monosaccharides
Denaturation
Triglycerides
7. Nucleic acids are composed of _______ - ____________ - and _____________ bases.
Glycerol - fatty acid
Essential amino acids
starch - glycogen - cellulose
sugar - phosphate - nitrogenous
8. The chemical reaction for glycerol and fatty acids combining together to form triglyceride is also called _______________ _____________.
Lipids
cellulose
Carbohydrates
Dehydration synthesis
9. Macronutrients consists of carbohydrates - proteins - and _______.
amylose
lipds
1680 kJ
Non-polar
10. _______________ are fast sources of energy.
Maltose
Disaccharides
Quartenary Protein Structure
Carbohydrates
11. 100 g of fat = __________ of energy.
vitamins and minerals
Maltose
3870 kJ
Lipids
12. Proteins are made when many many amino acids combine together through _____________ _____________.
Carbohydrates
Carbohydrates
Lipids
dehydration synthesis
13. Proteins are made when many many amino acids combine together through _____________ _____________.
3870 kJ
Enzymes
Primary Protein Structure
dehydration synthesis
14. _____________ contain up to 1000-6000 glucose molecules linked together.
3870 kJ
Fructose
amylopectin
Carbohydrates
15. Proteins create _____________ that affect growth and serve as messengers.
Fructose
Non-polar
Hormones
glycogen
16. _____________ contain up to 1000-6000 glucose molecules linked together.
Amylose - amylopectin
Lipids
amylopectin
sugar - phosphate - nitrogenous
17. Proteins help _____________ important substances to different areas of the body.
Animals
Carbohydrates
Transport
Monosaccharides
18. 100 g of carbs = __________ of energy.
Waxes
amino acid - hydrogen - carboxyl group - are-group
1680 kJ
simple sugars
19. Starches are _______ polysaccharides - stores energy for _______.
glycogen
plant
Anabolism
sugar
20. _______________ consists of carbohydrates - proteins - and lipids.
Macronutrients
Animals
Lipids
four
21. __________ are needed for fat soluble vitamins.
Glucose
Lipids
sugar
Carbohydrates
22. There are ________ types of carbohydrates.
Polymers
proteins
Lipids
three
23. Disaccharides are made of _____ __________________ combined together.
Phospholipids
two monosaccharides
Hydrolysis
Quartenary Protein Structure
24. Carbohydrates are made of all ________ ____________.
Carbohydrates
sugar molecules
saturated - unsaturated
Isomers
25. Micronutrients consists of __________ _____ _________ - and Nucleic Acids.
Tertiary Protein Structure
vitamins and minerals
Carbohydrates
Transport
26. Every living thing requires a constant supply of __________ ___ ____________.
nitrogenous
energy and molecules
Macronutrients
Lipids
27. Lipids __________ - and ____________ organs.
three
cushion - insulates
Animals
plant
28. _____________ are made of building blocks called amino acids. Found in meat - eggs - fish - nuts - beans - dairy.
amino acid - hydrogen - carboxyl group - are-group
Proteins
synthesis
Phospholipids
29. Lipids are used to make _____________.
Phospholipids
Hormones
Waxes
Lipids
30. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
3870 kJ
nitrogenous
Proteins
Secondary Protein Structure
31. Lipids are used to make _____________.
Triglycerides
dehydration synthesis
Hormones
nitrogenous
32. Proteins help keep our cells and muscles in _________.
Enzymes
two monosaccharides
Motion
dehydration
33. __________ = galactose + glucose
amino acids
Lactose
Secondary Protein Structure
Hydrolysis
34. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
Twenty - Twelve - Eight.
Unsaturated Triglycerides
cellulose
Sucrose
35. _____________ are found in plant cell walls.
Cellulose
Animals
glycogen
lipds
36. _______________ is the primary energy source for cells.
Carbohydrates
Nucleic Acids
Lipids
Support
37. Every living thing requires a constant supply of __________ ___ ____________.
Carbohydrates
Maltose
sugar
energy and molecules
38. Some examples of Monosaccharides are _________ - Galactose - Fructose.
carbohydrates
Glucose
Lipids
Quartenary Protein Structure
39. _____________ _____________ _____________- a single chain of sequenced amino acids.
Cellulose
Primary Protein Structure
Lipids
saturated - unsaturated
40. _______________ are made of glycerol and two fatty acids and a phosphate group.
glycogen
Phospholipids
Sucrose
glycogen
41. The opposite of dehydration synthesis is _____________.
Galactose
Hydrolysis
Glucose - Galactose - Fructose
starch - glycogen - cellulose
42. _____________ are plant polysaccharides - stores energy for plants.
starch
Protein structures
Starches
Cellulose
43. _____________ look like amylopectin but only have 16-24 glucose on each branch.
glycogen
Polysaccharides
Dehydration synthesis
Motion
44. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.
Double layered cell membrane
Triglycerides - phospholipids - waxes - sterols
Sterols
1680 kJ
45. _______ are non-polar molecules.
glycogen
proteins
Lipids
Glycerol - fatty acid
46. _______________ can have one single sugar molecule or can be polymers.
Phospholipids
Carbohydrates
Isomers
dehydration synthesis
47. All lipids are made of two structural units: ___________ - and _______ ______.
glycogen
Glycerol - fatty acid
complex chemicals
sugar - phosphate - nitrogenous
48. __________ = glucose + fructose.
Unsaturated Triglycerides
Polar - non-polar
Sucrose
Phospholipids
49. _____________ is where animals store carbohydrates.
cellulose
glycogen
starch - glycogen - cellulose
Sterols
50. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
plant
vitamins and minerals
carbohydrates - proteins - and lipids.
nitrogenous