6870184
Descripción
Test por John Loughlin, actualizado hace más de 1 año
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Creado por John Loughlin
hace alrededor de 8 años
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Pregunta 1
Pregunta
The six most common elements present in living organisms are:
Respuesta
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Carbon, hydrogen , oxygen, sulphur, phosphorus, chlorine
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Carbon, hydrogen, oxygen, nitrogen, phosphorus, sulphur
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Carbon, hydrogen, oxygen, nitrogen, phosphorus, sodium
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Carbon, hydrogen, oxygen, nitrogen, boron, phosphorus
Pregunta 2
Pregunta
Metabolism is:
Respuesta
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The way in which living organisms obtain and use food
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The getting rid of waste products of metabolism from the body
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The way in which living organisms react to their environment
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The sum of all the chemical reactions in a living organism
Pregunta 3
Pregunta
The five elements present as dissolved salts in living organisms are:
Respuesta
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Sodium, potassium, carbon, chlorine, calcium
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Sodium, potassium, chlorine, maganese, calcium
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Sodium, potassium, chlorine, magnesium, calcium
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Sodium, potassium, oxygen, chlorine, calcium
Pregunta 4
Pregunta
Trace elements are present in living organisms:
Respuesta
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to prevent disease
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to maintain health
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in large amounts
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in small amounts
Pregunta 5
Pregunta
Which of the following is NOT a monosaccharide?
Respuesta
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Maltose
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Glucose
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Fructose
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Galactose
Pregunta 6
Pregunta
Which of the following is NOT a disaccharide?
Respuesta
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Maltose
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Fructose
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Sucrose
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Lactose
Pregunta 7
Pregunta
Which of the following is NOT a polysaccharide?
Respuesta
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Starch
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Cellulose
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Glycogen
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Maltose
Pregunta 8
Pregunta
Which of the following is NOT a reducing sugar?
Respuesta
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Maltose
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Fructose
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Sucrose
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Glucose
Pregunta 9
Pregunta
Which of the following reagents are used to test for reducing sugars?
Respuesta
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Biuret's reagent
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Benedict's reagent
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Iodine
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Methylene blue
Pregunta 10
Pregunta
Which of the following is another name for starch?
Respuesta
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Amylase
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Maltose
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Maltase
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Amylose
Pregunta 11
Pregunta
Polysaccharides are composed of long chains of repeating:
Respuesta
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Monosaccharides
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Amino acids
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Lipids
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Nucleic acids
Pregunta 12
Pregunta
In the presence of starch, iodine turns:
Respuesta
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Brick-red
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Orange
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Blue-black
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Blue
Pregunta 13
Pregunta
Which of the following foods is a good source of starch?
Respuesta
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Fish
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Eggs
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Potato
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Chocolate
Pregunta 14
Pregunta
Phospholipids are a major component of:
Respuesta
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DNA
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Cell membranes
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Cytosol
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Cell walls
Pregunta 15
Pregunta
Peptide bonds are found between:
Respuesta
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Monosaccharides
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Glycerol and fatty acids
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Amino acids
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Vitamins
Pregunta 16
Pregunta
Which of the following elements is always present in protein?
Respuesta
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Phosphorus
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Sulphur
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Nitrogen
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Calcium
Pregunta 17
Pregunta
How many common amino acids are there?
Respuesta
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2
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20
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200
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2000
Pregunta 18
Pregunta
Which of the following vitamins is water soluble?
Respuesta
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A
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C
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D
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K
Pregunta 19
Pregunta
Which of the following elements is required for the formation of the middle lamella in plants?
Respuesta
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Potassium
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Sodium
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Magnesium
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Calcium
Pregunta 20
Pregunta
Which of the following elements is required for the formation of chlorophyll in plants?
Respuesta
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Potassium
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Sodium
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Magnesium
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Calcium
Pregunta 21
Pregunta
What is the symptoms associated with a deficiency in Vitamin C?
Respuesta
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Night-blindness
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Beri-beri
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Scurvy
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Rickets
Pregunta 22
Pregunta
What are the symptoms associated with a deficiency of Vitamin D?
Respuesta
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Scurvy
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Rickets
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Beri beri
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Night-blindness
Pregunta 23
Pregunta
What are the symptoms associated with a deficiency of Vitamin A?
Respuesta
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Scurvy
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Beri-beri
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Night-blindness
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Rickets
Pregunta 24
Pregunta
What are the symptoms associated with a deficiency of Vitamin K?
Respuesta
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Night-blindness
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Inability to blood clot
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Anaemia
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Fatigue
Pregunta 25
Pregunta
Anabolism is the:
Respuesta
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Sum of all the chemical reactions in an organism
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Building up large molecules from small molecules using energy
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Breaking down large molecules into small molecules with the release of energy
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Denaturation of molecules with the release of energy
Pregunta 26
Pregunta
Catabolism is the:
Respuesta
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Sum of all the chemical reactions in an organism
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Building up of large molecules from small molecules using energy
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Breaking down of large molecules into small molecules with the release of energy
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Denaturation of molecules with the release of energy
Pregunta 27
Pregunta
Which of the following is NOT an anabolic reaction?
Respuesta
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Photosynthesis
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Protein synthesis
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DNA replication
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Respiration
Pregunta 28
Pregunta
Which of the following is NOT a catabolic reaction?
Respuesta
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Respiration
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Digestion
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Hydrolysis
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Photosynthesis
Pregunta 29
Pregunta
Which of the following is the opposite of a hydrolysis reaction?
Respuesta
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Photosynthesis reaction
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Condensation reaction
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Respiration reaction
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Digestion reaction
Pregunta 30
Pregunta
Which of the following is NOT a function of water in the body?
Respuesta
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Acts as a medium in which chemical reactions occur
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Acts as a solvent
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Acts as a source of energy
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Acts as a good retainer of heat
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