8270716
Descripción
Pregunta 1
Pregunta
Amino acids, simple carbohydrates, and lipids are examples of:
Respuesta
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"Building blocks"
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Macromolecules
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Organelles
Pregunta 2
Pregunta
Proteins, DNA (nucleic acid), and complex carbohydrates are examples of:
Respuesta
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Macromolecules
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Organelles
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Monosaccharides
Pregunta 3
Pregunta
Macromolecules form supramolecular assemblies. Which of these examples are NOT a supramolecular assembly?
Respuesta
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Membranes
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Ribosomes
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Chromatin
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Mitochondria
Pregunta 4
Pregunta
Which of these "building blocks" cannot be polymerised?
Respuesta
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Amino acids
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Simple carbohydrates
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Neucleobases
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Lipids
Pregunta 5
Pregunta
Which statement about macromolecules is INCORRECT?
Respuesta
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Monosaccharides and disaccharides are simple carbohydrates.
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Monosaccharides and disaccharides are what we call sugars.
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A disaccharide is made up of two monosaccharides.
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A polysaccharide is made up more than 10 monosaccharides.
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A polysaccharide is a simple carbohydrate.
Pregunta 6
Pregunta
Hexose monosaccharides make up [blank_start]higher order carbohydrates[blank_end]. Pentose monosaccharides make up [blank_start]nucleic acids[blank_end] e.g. deoxyribose, ribose.
Respuesta
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higher order carbohydrates
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nucleic acids
Pregunta 7
Pregunta
Which of these statements/"equations" is false?
Respuesta
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Glucose + Fructose = Sucrose
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Galactose + Glucose = Lactose
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Glucose + Glucose = Maltose
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Fructose + Galactose = Trehalose
Pregunta 8
Pregunta
Which of these statements about carbohydrates are true?
Respuesta
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Starch and cellulose are polysaccharides found in plants.
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Glycogen is the complex carbohydrate found in animals.
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Cellulose is formed from β-glucose monomers.
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β-glucose has all its -OH groups on the same side.
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α-glucose is an isomer of the glucose molecule with the -OH groups on different sides.
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Starch and glycogen are made up of α-glucose monomers.
Pregunta 9
Pregunta
Glucose 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.
Respuesta
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linear
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ring
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ring
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linear
Pregunta 10
Pregunta
Which of the following is NOT a function or carbohydrates?
Respuesta
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Cell recognition
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Storage of energy
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Structure
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Synthesis of proteins
Pregunta 11
Pregunta
Lipids (fats, steroids, phospholipids, fat soluble vitamins) are hydrophilic.
Respuesta
- True
- False
Pregunta 12
Pregunta
Which of the following statements about functions of lipids are CORRECT?
Respuesta
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Lipids provide structure.
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Lipids like testosterone perform regulatory functions.
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Lipids store energy.
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Lipids help resist tension.
Pregunta 13
Pregunta
Which statement BEST describes the differences between DNA and RNA?
Respuesta
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DNA is a double helix while RNA is a single strand.
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DNA is made up of four bases, and RNA shares three of these, while having one unique base (uracil in place of thymine).
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DNA 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.
Pregunta 14
Pregunta
Which of these statements about proteins is INCORRECT?
Respuesta
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Proteins are polymers of amino acids.
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There are about 100,000 unique proteins
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One gene can code for several proteins
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Proteins are mainly for structural support.
Pregunta 15
Pregunta
Which of these are functions of proteins?
Respuesta
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Proteins provide structure e.g collagen to resist tension.
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Proteins are regulatory and maintain homeostasis e.g. insulin in the plasma membrane.
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Proteins are contractile e.g. actin and myosin in muscle fibers.
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Proteins can transport things e.g. haemoglobin moving oxygen via the cardiovascular system.
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Proteins can store materials e.g egg white - albumin
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Some proteins are highly acidic and act to break down cells in their regulated death cycle.
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Some proteins are immune proteins which protect the system e.g. antibodies like IgG
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