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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. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.
metabolism
complex chemicals
Unsaturated Triglycerides
Essential amino acids
2. ______ are the structural components of cell membranes.
Lipids
sugar
Enzymes
Carbohydrates
3. Monosaccharides are also called ________ __________.
Lipids
simple sugars
starch - glycogen - cellulose
amino acids
4. There are _____ types of protein structure.
Non-polar
three
Motion
four
5. ______ of carbs = 1680 kJ of energy.
100 g
vitamins and minerals
Support
Enzymes
6. ______________ are acquired from plants. (Photosynthesis -> glucose)
Phospholipids
Carbohydrates
plant
100 g
7. Nucleic acids are composed of _______ - ____________ - and _____________ bases.
Galactose
sugar - phosphate - nitrogenous
100g
cushion - insulates
8. The four kinds of lipids are _______________ - _______________ - ________ - and ___________.
Triglycerides - phospholipids - waxes - sterols
vitamins and minerals
complex chemicals
Isomers
9. Micronutrients consists of __________ _____ _________ - and Nucleic Acids.
vitamins and minerals
Carbohydrates
Lactose
Lipids
10. There are ________ types of carbohydrates.
amylopectin
three
Tertiary Protein Structure
starch
11. The opposite of dehydration synthesis is _____________.
plant
Sterols
Hydrolysis
Proteins
12. Disaccharides are made of _____ __________________ combined together.
two monosaccharides
Carbohydrates
Carbohydrates
Four
13. __________________________ can be changed when exposed to excess heat - radiation - or change in pH.
vitamins and minerals
saturated - unsaturated
Protein structures
Amylose - amylopectin
14. _____________ are found in plant cell walls.
Lipids
Amylose - amylopectin
Cellulose
Animals
15. Lipids are _____________ (does not dissolve in water).
Non-soluble
Lipids
Proteins
Polysaccharides
16. The three types of Polysaccharides are _____________ - glycogen - and cellulose.
starch
Monosaccharides
Carbohydrates
Fructose
17. Proteins are made when many many amino acids combine together through _____________ _____________.
Macronutrients
1680 kJ
glycogen
dehydration synthesis
18. ___________: to lose a water molecule.
Macronutrients
dehydration
Catabolism
amylose
19. There are _____ types of protein structure.
Lipids
Non-soluble
starch - glycogen - cellulose
four
20. _____________ contain up to 1000 glucose molecules linked together.
Lactose
amylose
sugar molecules
1680 kJ
21. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.
starch - glycogen - cellulose
Cellulose
Carbohydrates
Starches
22. ___________ have different properties. Ex - fructose is sweeter.
Protein structures
peptide bond
Isomers
Starches
23. Some examples of Monosaccharides are Glucose - Galactose - __________.
Hormones
Fructose
Lipids
Saturated Triglycerides
24. Proteins help form antibodies for _____________.
glycogen
glycogen
Defense
Dehydration synthesis
25. ______ are the structural components of cell membranes.
Glycerol - fatty acid
Lipids
Isomers
dehydration synthesis
26. _____________ _____________ _____________- Two or more different tertiary structures interact forming large structure for a single protein.
three
100g
Quartenary Protein Structure
sugar
27. Lipids are ____ ______________ in cell membranes.
Key components
vitamins and minerals
dehydration synthesis
Motion
28. _____________ are plant polysaccharides - stores energy for plants.
Monosaccharides
Starches
Glucose - Galactose - Fructose
100 g
29. The three types of Polysaccharides are _____________ - _____________ - and _____________.
Macronutrients
starch - glycogen - cellulose
Catabolism
Lipids
30. Proteins are composed of ______ ______.
complex chemicals
Isomers
Hormones
amino acids
31. 100 g of fat = __________ of energy.
saturated - unsaturated
plant
3870 kJ
Phospholipids
32. Carbohydrates are made of all ________ ____________.
Monosaccharides
sugar molecules
100g
synthesis
33. Proteins create _____________ that affect growth and serve as messengers.
nitrogenous
Dehydration synthesis
Hormones
proteins
34. __________ = glucose + glucose.
Lipids
glycogen
dehydration
Maltose
35. _____________ _____________ _____________- coils of amino acids.
3870 kJ
cellulose
Cellulose
Secondary Protein Structure
36. _______________ are fast sources of energy.
Carbohydrates
sugar molecules
Phospholipids
vitamins and minerals
37. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.
dehydration
cushion - insulates
Denaturation
Double layered cell membrane
38. The three types of Polysaccharides are starch - _____________ - and cellulose.
glycogen
Non-polar
plant cells
100g
39. The two types of starches are ___________ - and ______________.
sugar - phosphate - nitrogenous
Amylose - amylopectin
Triglycerides
Monosaccharides
40. ________________ usually have a molecular formula ratio of C:H:O in 1:2:1.
Monosaccharides
Carbohydrates
plant cells
Quartenary Protein Structure
41. Proteins are composed of ______ ______.
amino acids
Four
Lipids
Dehydration synthesis
42. ________________ consists of Vitamins and Minerals - and Nucleic Acids.
Proteins
Micronutrients
phosphate
Double layered cell membrane
43. Proteins help keep our cells and muscles in _________.
Lipids
Motion
Triglycerides
Unsaturated Triglycerides
44. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.
amylopectin
Fructose
dehydration synthesis
carbohydrates
45. Phospholipds have a _____________ head - and a _______________ tail.
Hydrophilic - hydrophobic
Waxes
nitrogenous
Secondary Protein Structure
46. _____________ molecules are not negatively or positively charged.
Lactose
Monosaccharides
Non-polar
Carbohydrates
47. ____________: when molecules have the same chemical formula but different structures.
proteins
glycogen
Isomers
Nucleic Acids
48. ____________ creates cholesterol - estrogen and pheromones.
nitrogenous
Sterols
Lactose
nucleic acids
49. _________________ are made of a single sugar unit.
Cellulose
Disaccharides
Catabolism
Monosaccharides
50. _____________ _____________ _____________- the are groups interact to change coil structure.
Tertiary Protein Structure
Amylose - amylopectin
lipds
Catabolism