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