| Date | November 2015 | Marks available | 1 | Reference code | 15N.1.SL.TZ0.6 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 6 | Adapted from | N/A |
Question
Which always contains carbon, hydrogen and oxygen?
I. Carbohydrate
II. Protein
III. Fat
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
Markscheme
D
Examiners report
Usually candidates do not answer multiple completion questions well, but in this case, more than 50% of the candidates were able to answer it well and the discrimination index was high.
Syllabus sections
Show 69 related questions
- 17N.1.HL.TZ0.05: Which of the molecules contain peptide bonds or are sugar molecules?
- 17N.2.SL.TZ0.05c: Compare and contrast cis-fatty acids and trans-fatty acids.
- 17N.1.SL.TZ0.08: The Framingham heart study was an observational study that went on for 20 years. The...
- 17M.2.HL.TZ1.1f.ii: Suggest a reason for the greater expression of the gene for the urea transporter after an...
- 17M.2.SL.TZ2.6a: Describe the structure and function of starch in plants.
- 17M.2.SL.TZ1.6b: Distinguish between the structures of the different types of fatty acids in food.
- 17M.2.SL.TZ1.1c: Estimate how much smaller drilled oysters raised in seawater at a high CO2 concentration were...
- 17M.1.HL.TZ1.8: What type of molecule is shown in this diagram? A. Trans saturated fatty acid B. Cis...
- 17M.1.SL.TZ2.27: The bacterium Neisseria gonorrhoeae causes infections related to the human reproductive...
- 16M.2.HL.TZ0.2b: Draw the structure of a saturated fatty acid.
- 16M.2.HL.TZ0.2a: (i) Using the nomogram, state the lower weight limit for a woman with the height...
- 16N.1.HL.TZ0.7: Olive oil may reduce the risk of coronary heart disease. What is/are the compound(s)...
- 16N.1.SL.TZ0.7: The diagram shows a molecular structure. Which type of molecule is shown? A. Amino acidB....
- 16N.1.SL.TZ0.6: Which type of reaction is the breakdown of starch into sugars? A. DenaturationB. ReductionC....
- 16M.1.HL.TZ0.3: Which molecule is a polysaccharide? A. GlucagonB. GlucoseC. GlycerolD. Glycogen
- 16M.1.HL.TZ0.1: Which molecule is a sugar?
- 15M.1.HL.TZ1.8: Which sugars are examples of a monosaccharide and disaccharide?
- 15M.1.SL.TZ2.1: Which molecule is a polysaccharide?A. CelluloseB. FructoseC. MaltoseD. Sucrose
- 15M.2.SL.TZ1.2a: Milk contains lactose which some people can digest but some cannot. State what type of sugar...
- 15M.2.SL.TZ1.2b: Milk contains lactose which some people can digest but some cannot. State a function of...
- 15N.1.HL.TZ0.7: Which always contains carbon, hydrogen and oxygen? I. Carbohydrate II. Protein III....
- 15M.1.SL.TZ1.8: What are these molecules?
- 15N.2.SL.TZ0.4c: List two examples of polysaccharides.
- 13M.1.HL.TZ1.6: Which molecules are monosaccharides? A. starch, glycogen, celluloseB. sucrose, maltose,...
- 13M.1.HL.TZ2.8: Which carbohydrates are used to provide energy storage in plants and animals?
- 13M.1.HL.TZ2.6: Which molecules show a monosaccharide and a fatty acid?
- 13N.1.SL.TZ0.8: Which are functions of lipids?A. Hydrophilic solvent and energy storageB. Hydrophobic solvent...
- 13M.1.SL.TZ1.7: What process occurs when fatty acids combine with glycerol to make a triglyceride? A....
- 13N.3.SL.TZ0.3a: Outline the molecular structure of different types of fatty acids.
- 11M.1.SL.TZ2.8: What is the difference between galactose and lactose? A. Lactose is a disaccharide and...
- 12M.2.HL.TZ1.5a: Outline, with examples, the types of carbohydrate found in living organisms.
- 12M.1.HL.TZ1.7: Which sugars are both disaccharides? A. maltose and lactose B. lactose and fructose C....
- 12M.1.HL.TZ2.7: The diagrams show three representations of the structure of the same chemical...
- 12M.1.SL.TZ2.6: The diagrams show three representations of the structure of the same chemical...
- 12M.2.SL.TZ1.5a: Outline, with examples, the types of carbohydrate found in living organisms.
- 12M.3.SL.TZ2.2a: List two possible variants in the molecular structure of unsaturated fatty acids.
- 09M.1.SL.TZ2.8: Which molecule is shown below? A. GlucoseB. GalactoseC. RiboseD. Sucrose
- 09M.1.HL.TZ2.36: Which chemical is shown in the diagram below? A. MonosaccharideB. TriglycerideC. Fatty...
- 10M.2.HL.TZ1.2b (ii): State the type of chemical reaction that occurs when lactose is digested into glucose and...
- 10M.2.HL.TZ1.2a: Glucose and galactose are examples of monosaccharides. State one other example of a...
- 10M.2.HL.TZ1.2b (i): There are several different types of carbohydrate. State which type of carbohydrate lactose is.
- 10M.2.HL.TZ2.1h: Suggest one advantage and one disadvantage for blood sampling rather than weighing birds to...
- 10M.2.HL.TZ2.1e: Describe, using the triglyceride levels graph, the results at Site 1 and Site 2 for all of...
- 10M.2.HL.TZ2.1g: Scientists have hypothesized that the food quality is better at Site 1 than at Site 2....
- 10M.2.HL.TZ2.1f: Explain the differences in the triglyceride level and butyrate level for the hermit thrush at...
- 10M.1.SL.TZ1.8: Which describes these molecules correctly?
- 10M.1.SL.TZ2.10: Which of the following is a function of cellulose in plants? A. Storage of fat B. Formation...
- 10M.2.SL.TZ1.2b (i): There are several different types of carbohydrate. State which type of carbohydrate lactose is.
- 10M.2.SL.TZ1.2a: Glucose and galactose are examples of monosaccharides. State one other example of a...
- 10M.2.SL.TZ1.2b (ii): State the type of chemical reaction that occurs when lactose is digested into glucose and...
- 10M.2.SL.TZ2.5a: Outline the role of hydrolysis in the relationships between monosaccharides, disaccharides...
- 11N.1.HL.TZ0.5: Which statement describes glycogen? A. It is a hormone involved in the control of blood...
- 11N.1.HL.TZ0.7: What substance is represented by this structure? A. Glycerol B. Fatty acid C. Cellulose...
- 11N.2.SL.TZ0.6b: Outline the role of condensation and hydrolysis in the relationship between fatty acids,...
- 11N.3.SL.TZ0.1a: Measure the difference between the percentage of overweight men and the percentage of...
- 11N.3.SL.TZ0.1b: State the range of the body mass index (BMI) that corresponds to overweight status.
- 11N.3.SL.TZ0.1c: Compare the percentage of men and women who exercised daily.
- 12N.2.HL.TZ0.1b: Compare the composition of natural human surfactant with synthetic surfactants.
- 11N.1.SL.TZ0.8: What is a function of cellulose in plants? A. To form a mesh of fibres in the cell wall B....
- 12N.2.HL.TZ0.1a: State the surfactant that contains the least amount of phospholipids.
- 12N.2.HL.TZ0.1c: Phospholipids found in the surfactants form a surface film on the moist lining of the...
- 12N.1.HL.TZ0.5: Which structure represents a fatty acid?
- 12N.2.SL.TZ0.5a: Outline the role of condensation and hydrolysis in metabolic reactions involving...
- 12N.3.SL.TZ0.1b (i): Identify the mass above which a man whose height is 185 cm would be classified as obese.
- 10N.2.SL.TZ0.4a: State four elements that are needed by living organisms, other than carbon, hydrogen and...
- 09N.3.SL.TZ0.1e: State the body mass index (BMI) below which a person is considered to be underweight.
- 09N.3.SL.TZ0.3: Outline the variation in the structure of fatty acids.
- 17M.1.SL.TZ1.6: A polymer of alpha-D-glucose found in plants has mostly 1,4 linkages and some 1,6 linkages....
- 17M.1.SL.TZ1.21: Cladograms can be created by comparing DNA or protein sequences. The cladogram on the left is...
