SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. __________ = galactose + glucose
Protein structures
starch - glycogen - cellulose
Proteins
Lactose
2. There are ______ kinds of lipids.
Amylose - amylopectin
Four
Glycerol - fatty acid
starch - glycogen - cellulose
3. Lipids are ____ ______________ in cell membranes.
Phospholipids
nucleic acids
Saturated Triglycerides
Key components
4. _____________ contain up to 1000 glucose molecules linked together.
dehydration synthesis
Sterols
amylose
Non-soluble
5. Proteins help _____________ important substances to different areas of the body.
Transport
Nucleic Acids
dehydration synthesis
peptide bond
6. Some examples of Monosaccharides are Glucose - Galactose - __________.
two monosaccharides
Fructose
Lipids
Motion
7. Micronutrients consists of Vitamins and Minerals - and _________ ______.
Lipids
Carbohydrates
peptide bond
nucleic acids
8. _______________ are made of glycerol and two fatty acids and a phosphate group.
Anabolism
Quartenary Protein Structure
complex chemicals
Phospholipids
9. There are __________ different kinds of Amino acids. __________ can be made in our bodies - while ________ is acquired through eating food.
Amylose - amylopectin
Twenty - Twelve - Eight.
Hormones
Lipids
10. Nucleic acids are composed of sugar - phosphate - and _____________ bases.
nucleic acids
amino acid - hydrogen - carboxyl group - are-group
nitrogenous
Dehydration synthesis
11. _____________ contain many branches that make up 24-36 glucose molecules.
amylopectin
dehydration synthesis
Saturated Triglycerides
Amylose - amylopectin
12. Monosaccharides are also called ________ __________.
Tertiary Protein Structure
simple sugars
nitrogenous
sugar - phosphate - nitrogenous
13. The three types of Polysaccharides are _____________ - glycogen - and cellulose.
Carbohydrates
two monosaccharides
starch
Lipids
14. ___________ are important for long-term storage of energy.
nitrogenous
Lipids
amylopectin
Proteins
15. Lipids are used to make _____________.
synthesis
Carbohydrates
Triglycerides
Hormones
16. ____________ _______ are genetic material that directs cell activity.
amino acids
Starches
Nucleic Acids
Monosaccharides
17. _____________ are plant polysaccharides - stores energy for plants.
Anabolism
Motion
Starches
Enzymes
18. _______________ are made of all sugar molecules.
Hydrophilic - hydrophobic
Isomers
Cellulose
Carbohydrates
19. Proteins are made when many many amino acids combine together through _____________ _____________.
dehydration synthesis
sugar molecules
amylopectin
carbohydrates - proteins - and lipids.
20. ____________ creates cholesterol - estrogen and pheromones.
Sterols
Carbohydrates
100g
dehydration
21. Lipids __________ - and ____________ organs.
cushion - insulates
lipds
Lipids
Glucose - Galactose - Fructose
22. Carbohydrates are structural material for ______ ______.
complex chemicals
plant cells
Lipids
Hormones
23. _______________ can have one single sugar molecule or can be polymers.
Key components
Carbohydrates
Double layered cell membrane
saturated - unsaturated
24. Proteins create _____________ that affect growth and serve as messengers.
Primary Protein Structure
Micronutrients
Hormones
plant
25. _____________ store energy in the form of fat.
nucleic acids
Tertiary Protein Structure
Lipids
Transport
26. Macronutrients consists of carbohydrates - proteins - and _______.
sugar molecules
Saturated Triglycerides
lipds
dehydration
27. __________ = galactose + glucose
Lipids
amino acids
Monosaccharides
Lactose
28. _______ are non-polar molecules.
Lipids
carbohydrates - proteins - and lipids.
carbohydrates - proteins - and lipids.
Carbohydrates
29. ________ are very stable insoluble molecules. Used for waterproofing/ protection. Ex. Candles etc -.
synthesis
Waxes
metabolism
Carbohydrates
30. Lipids __________ - and ____________ organs.
Coagulation
Tertiary Protein Structure
Defense
cushion - insulates
31. All _____________ have different proteins (amino acids)
Micronutrients
Glucose
Animals
Dehydration synthesis
32. ___________: to lose a water molecule.
Twenty - Twelve - Eight.
Carbohydrates
cellulose
dehydration
33. The chemical reaction for glycerol and fatty acids combining together to form triglyceride is also called _______________ _____________.
Dehydration synthesis
vitamins and minerals
Amylose - amylopectin
Carbohydrates
34. _______________ are made of glycerol and two fatty acids and a phosphate group.
amylopectin
Phospholipids
Isomers
Lipids
35. Some examples of Monosaccharides are _________ - Galactose - Fructose.
Glucose
Polymers
Enzymes
Hormones
36. _____________ _____________ _____________- the are groups interact to change coil structure.
Tertiary Protein Structure
metabolism
3870 kJ
Triglycerides
37. _______________ consists of carbohydrates - proteins - and lipids.
cellulose
Macronutrients
proteins
phosphate
38. The two types of starches are ___________ - and ______________.
Carbohydrates
Amylose - amylopectin
glycogen
four
39. Lipids are _____________ (does not dissolve in water).
Non-soluble
glycogen
Starches
vitamins and minerals
40. All lipids are made of two structural units: ___________ - and _______ ______.
sugar
Anabolism
Glycerol - fatty acid
amino acids
41. ______ of fat = 3870 kJ of energy.
amino acid - hydrogen - carboxyl group - are-group
100g
Defense
Triglycerides - phospholipids - waxes - sterols
42. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources
Catabolism
Dehydration synthesis
Lipids
Unsaturated Triglycerides
43. _____________ are made of building blocks called amino acids. Found in meat - eggs - fish - nuts - beans - dairy.
Lipids
amino acid - hydrogen - carboxyl group - are-group
Proteins
amylopectin
44. The bond formed between two amino acids are called a __________ ______.
Starches
peptide bond
Disaccharides
Carbohydrates
45. _____________ is where animals store carbohydrates.
Proteins
glycogen
Key components
sugar
46. __________ = glucose + fructose.
Carbohydrates
glycogen
Sucrose
plant
47. Carbohydrates are structural material for ______ ______.
Triglycerides - phospholipids - waxes - sterols
glycogen
3870 kJ
plant cells
48. _____________ _____________ _____________- coils of amino acids.
Lactose
Four
Polar - non-polar
Secondary Protein Structure
49. ________________ consists of Vitamins and Minerals - and Nucleic Acids.
Nucleic Acids
starch
Micronutrients
Catabolism
50. Proteins help keep our cells and muscles in _________.
Defense
Motion
amylopectin
Lipids