109756
Descrição
Quiz por cloud.berry, atualizado more than 1 year ago
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Criado por cloud.berry
mais de 11 anos atrás
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|
Questão 1
Questão
The element nitrogen is combined with carbon, hydrogen and oxygen in compounds called _____ from which _____ are constructed .
Responda
-
Amino acids | proteins
-
Proteins | amino acids
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Lipids | amino acids
-
Carbohydrates | lipids
Questão 2
Questão
The ______ is the smallest part of an element that can take part in a chemical change.
Responda
-
Atom
-
Molecule
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Ion
Questão 3
Questão
A polar molecule is one that carries :
Responda
-
An unequal distribution of electrical charge within it.
-
An equal distribution of electrical charge within it.
Questão 4
Questão
The specific heat capacity refers to :
Responda
-
the amount of heat energy required to raise the temperature of [water}.
-
the amount of force required to raise the temperature of [water].
-
the amount of energy required to lower to temperature of [water].
Questão 5
Questão
The latent heat of vaporisation refers to :
Responda
-
the amount of energy needed to turn liquid water into water vapour {gas}.
-
the amount of energy needed to turn water vapour into liquid water.
Questão 6
Questão
The latent heat fusion refers to :
Responda
-
The amount of energy required to be removed from water to turn it to ice.
-
The amount of energy required to be given to ice to water to turn it to ice.
Questão 7
Questão
Water reaches its maximum density at __ degrees celsius.
Responda
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4
-
2
-
3
-
5
-
1
-
0
-
-1
Questão 8
Questão
Name the force by which individual molecules stick together.
Responda
-
Cohesion
-
Adhesion
-
Latent heat of fusion
-
Latent heat of vaporisation
-
Specific heat capacity
Questão 9
Questão
The force by which individual molecules cling to surrounding surfaces and materials is..?
Responda
-
Adhesion
-
Cohesion
-
Surface tension
Questão 10
Questão
"Below the surface water molecules slide past each other very easily" -this is an example of which property?
Responda
-
Low viscosity
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High viscosity
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High surface tension
-
Low surface tension
Questão 11
Questão
Compounds containing carbon that are found in living organisms are called :
Responda
-
Organic compounds
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Unhealthy compounds
-
Healthy compounds
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Nutritious compounds
Questão 12
Questão
Examples of monosaccharides, a type of carbohydrate, are :
Responda
-
Glucose
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Fructose
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Sucrose
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Lactose
-
Maltose
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Ribose
-
Cellulose
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Glycogen
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Starch
Questão 13
Questão
Examples of disaccharides {a type of carbohydrate) are :
Responda
-
Ribose
-
Fructose
-
Cellulose
-
Starch
-
Glucose
-
Sucrose
-
Lactose
-
Maltose
-
Glycogen
Questão 14
Questão
Examples of polysaccharides (a type of carbohydrate) are :
Responda
-
Starch
-
Glycogen
-
Cellulose
-
Fructose
-
Ribose
-
Glucose
-
Maltose
-
Lactose
-
Sucrose
Questão 15
Questão
The molecular formula "C{6}H{12}O{6}" shows _____ .
Responda
-
Glucose
-
Ribose
-
Fructose
Questão 16
Questão
When two monosaccharides molecules combine to form a disaccharide and a molecule of water is also formed as a product, this is known as a ______ .
Responda
-
Condensation reaction
-
Glycosidic linkage
Questão 17
Questão
_____ appear in living things as animal fats and plant oils, and also as phospholipids of cell membranes.
Responda
-
Lipids
-
Carbohydrates
-
Proteins
-
Nucleic acids
Questão 18
Questão
Lipids like carbohydrates also contain carbon, hydrogen and oxygen, but in lipids the proportion of _____ is much _____ .
Responda
-
Oxygen | less
-
Oxygen | more
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Carbon | more
-
Carbon | less
-
Hydrogen | more
-
Hydrogen | less
Questão 19
Questão
Fats & oils are compounds called ______ formed by condensation reactions between _____ and an alcohol called _______ forming a bond called _______ .
Responda
-
Triglycerides | fatty acids | glycerol | esther linkage
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Lipids | carbohydrates | galactose | esther linkage
Questão 20
Questão
____ produce more energy per gram than _____ due to the presence of less carbon.
Responda
-
Lipids | carbohydrates
-
Carbohydrates| lipids
Questão 21
Questão
As well as carbon, hydrogen and oxygen , proteins also contain the elements ____ & usually the element _____ .
Responda
-
Nitrogen | sulphur
-
Argon | nitrogen
-
Sodium | sulphur
-
Nitrogen | calcium
-
Nitrogen | phosphate
Questão 22
Questão
______ are the molecules from which _____ and _____ are built.
Responda
-
Amino acids | peptides | proteins
-
Amino acids | lipids | polypeptides
Questão 23
Questão
Two ______ combine together with the loss of water to form a ______ .
Responda
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Dipeptide
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Peptide
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Polypeptide
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Protein
-
Base
-
Diglyceride
Questão 24
Questão
When two amino acids combine to form a dipeptide the linkage they form is known as ______ .
Responda
-
Peptide linkage
-
Esther linkage
-
Glycosidic linkage
Questão 25
Questão
Enzymes are ______ ______ made out of _____ .
Responda
-
Biological | catalysts | proteins
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Biological | organisms | peptides
Questão 26
Questão
In a reaction catalysed by an enzyme, the starting substance is called the ____ and the resulting is the _____ .
Responda
-
Substrate | product
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Product | substrate
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Item | Molecule
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Lock | key
Questão 27
Questão
While DNA occurs in the chromosomes of the nucleus, so does some RNA however most is found in the _____ .
Responda
-
Cytoplasm
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Nucleus
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rER
-
Golgi apparatus
-
Lysosomes
-
Mitochondria
Questão 28
Questão
A nucleotide consist of three substances combined together which are :
Responda
-
Nitrogenous base
-
Pentose sugar
-
Phosphoric acid
-
Phosphate
-
Lipid
-
Hexose sugar
Questão 29
Questão
The enzyme _____ catalyses the reaction which occurs when the sugar and phosphate groups of adjacent nucleotides of new strands condense together.
Responda
-
DNA polymerase
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Helicase
-
Glutamic acid
Questão 30
Questão
_____ are formed at ribosomes in the _____ .
Responda
-
Proteins | cytoplasm
-
Amino acids | nucleus
-
Amino acids | cytoplasm
-
Proteins | nucleus
Questão 31
Questão
There are three function types of RNA known as :
Responda
-
(Messenger) mRNA
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(Transfer) tRNA
-
Ribosomal RNA
-
(Messaging) mRNA
-
(Transcend) tRNA
-
Ribbed RNA
Questão 32
Questão
mRNA is formed in the _____ and passes out to _____ in the ____, tRNA & ribosomal RNA are occur only in the _____ .
Responda
-
Nucleus | ribosomes | cytoplasm | cytoplasm
-
Nucleus | mitochondria | cytoplasm | ribosomes
Questão 33
Questão
The steps of protein synthesis in chronological order are :
Responda
-
Transcription | Amino acid activation | Translation
-
Amino acid activation | Translation | Transcription
-
Translation | Transcription | Amino acid activation
Questão 34
Questão
Stage 1 of protein synthesis occurs in the ____ where a complementary copy of the code is made by the building of a molecule of mRNA.
Responda
-
Nucleus
-
Mitochondria
-
rER
-
Cytoplasm
-
Golgi apparatus
Questão 35
Questão
_____ catalyses the synthesis of mRNA
Responda
-
RNA polymerase
-
mRNA polymerase
-
Helicase
-
RNA
Questão 36
Questão
__ bases (a codon) equal 1 amino acid.
Responda
-
3
-
2
-
4
-
5
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