Quiz
L3 Molecular Composition of Cells
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Questions in this quiz (15)
1Amino acids, simple carbohydrates, and lipids are examples of:
- A"Building blocks"
- BMacromolecules
- COrganelles
2Proteins, DNA (nucleic acid), and complex carbohydrates are examples of:
- AMacromolecules
- BOrganelles
- CMonosaccharides
3Macromolecules form supramolecular assemblies. Which of these examples are NOT a supramolecular assembly?
- AMembranes
- BRibosomes
- CChromatin
- DMitochondria
4Which of these "building blocks" cannot be polymerised?
- AAmino acids
- BSimple carbohydrates
- CNeucleobases
- DLipids
5Which statement about macromolecules is INCORRECT?
- AMonosaccharides and disaccharides are simple carbohydrates.
- BMonosaccharides and disaccharides are what we call sugars.
- CA disaccharide is made up of two monosaccharides.
- DA polysaccharide is made up more than 10 monosaccharides.
- EA polysaccharide is a simple carbohydrate.
6Hexose monosaccharides make up [blank_start]higher order carbohydrates[blank_end]. Pentose monosaccharides make up [blank_start]nucleic acids[blank_end] e.g. deoxyribose, ribose.
- Ahigher order carbohydrates
- Bnucleic acids
7Which of these statements/"equations" is false?
- AGlucose + Fructose = Sucrose
- BGalactose + Glucose = Lactose
- CGlucose + Glucose = Maltose
- DFructose + Galactose = Trehalose
8Which of these statements about carbohydrates are true?
- AStarch and cellulose are polysaccharides found in plants.
- BGlycogen is the complex carbohydrate found in animals.
- CCellulose is formed from β-glucose monomers.
- Dβ-glucose has all its -OH groups on the same side.
- Eα-glucose is an isomer of the glucose molecule with the -OH groups on different sides.
- FStarch and glycogen are made up of α-glucose monomers.
9Glucose can be in a [blank_start]linear[blank_end] form, which is more reactive, or in a [blank_start]ring[blank_end] form, which is more stable.
- Alinear
- Bring
- Cring
- Dlinear
10Which of the following is NOT a function or carbohydrates?
- ACell recognition
- BStorage of energy
- CStructure
- DSynthesis of proteins
11Lipids (fats, steroids, phospholipids, fat soluble vitamins) are hydrophilic.
- ATrue
- BFalse
12Which of the following statements about functions of lipids are CORRECT?
- ALipids provide structure.
- BLipids like testosterone perform regulatory functions.
- CLipids store energy.
- DLipids help resist tension.
13Which statement BEST describes the differences between DNA and RNA?
- ADNA is a double helix while RNA is a single strand.
- BDNA is made up of four bases, and RNA shares three of these, while having one unique base (uracil in place of thymine).
- CDNA is a double helix with hydrogen groups, and contains the bases thymine, adenine, guanine, and cytosine. RNA is a single strand with -OH groups, and uses uracil in place of thymine.
14Which of these statements about proteins is INCORRECT?
- AProteins are polymers of amino acids.
- BThere are about 100,000 unique proteins
- COne gene can code for several proteins
- DProteins are mainly for structural support.
15Which of these are functions of proteins?
- AProteins provide structure e.g collagen to resist tension.
- BProteins are regulatory and maintain homeostasis e.g. insulin in the plasma membrane.
- CProteins are contractile e.g. actin and myosin in muscle fibers.
- DProteins can transport things e.g. haemoglobin moving oxygen via the cardiovascular system.
- EProteins can store materials e.g egg white - albumin
- FSome proteins are highly acidic and act to break down cells in their regulated death cycle.
- GSome proteins are immune proteins which protect the system e.g. antibodies like IgG
Information
- Description
- Objectives: List the major atomic constituents of biological macromolecules. • Describe the relationship between molecular “building blocks” and higher order of structures in cells. • Identify the structures of the major types of biomolecules in cells. • Describe, with examples, the roles of carbohydrates, lipids, proteins and nucleic acids in cells.
- Author
- Mer Scott
- Language
- English
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- 38
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