8270716
Description
Question 1
Question
Amino acids, simple carbohydrates, and lipids are examples of:
Answer
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"Building blocks"
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Macromolecules
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Organelles
Question 2
Question
Proteins, DNA (nucleic acid), and complex carbohydrates are examples of:
Answer
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Macromolecules
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Organelles
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Monosaccharides
Question 3
Question
Macromolecules form supramolecular assemblies. Which of these examples are NOT a supramolecular assembly?
Answer
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Membranes
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Ribosomes
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Chromatin
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Mitochondria
Question 4
Question
Which of these "building blocks" cannot be polymerised?
Answer
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Amino acids
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Simple carbohydrates
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Neucleobases
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Lipids
Question 5
Question
Which statement about macromolecules is INCORRECT?
Answer
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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.
Question 6
Question
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.
Answer
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higher order carbohydrates
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nucleic acids
Question 7
Question
Which of these statements/"equations" is false?
Answer
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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
Question 8
Question
Which of these statements about carbohydrates are true?
Answer
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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.
Question 9
Question
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.
Answer
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linear
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ring
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ring
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linear
Question 10
Question
Which of the following is NOT a function or carbohydrates?
Answer
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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
Question 11
Question
Lipids (fats, steroids, phospholipids, fat soluble vitamins) are hydrophilic.
Answer
- True
- False
Question 12
Question
Which of the following statements about functions of lipids are CORRECT?
Answer
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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.
Question 13
Question
Which statement BEST describes the differences between DNA and RNA?
Answer
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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.
Question 14
Question
Which of these statements about proteins is INCORRECT?
Answer
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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.
Question 15
Question
Which of these are functions of proteins?
Answer
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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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