Pregunta 1
Pregunta
How long ago was the Earth formed from a cloud of dust particles surrounding the sun?
Pregunta 2
Pregunta
How was the core of our Earth formed?
Pregunta 3
Pregunta
What molten elements are the Earth's core made out of?
Respuesta
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Nickel and Iron
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Hydrogen and Oxygen
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Magnesium and Nitrogen
Pregunta 4
Pregunta
The Earth's liquid mantle is made out of silicates of which two elements?
Respuesta
-
Silicon and Calcium
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Magnesium and Iron
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Carbon and Nitrogen
Pregunta 5
Pregunta
What is the Earth's crust made of?
Respuesta
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Light silicate compounds
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Only sedimentary rock
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Molten lava
Pregunta 6
Pregunta
Which gases were present in the first atmosphere of Earth?
Respuesta
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Nitrogen, oxygen, carbon, methane, nitrogen and hydrogen sulphide.
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Hydrogen, water vapour, methane, ammonia, nitrogen and hydrogen sulphide.
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Hydrogen, carbon, water vapour, methane and nitrogen.
Pregunta 7
Pregunta
Which property did the early atmosphere have?
Respuesta
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Photolysis properties
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Oxidising properties
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Reducing properties
Pregunta 8
Pregunta
What was missing from the Earth's early atmosphere?
Respuesta
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Oxygen
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Nitrogen
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Water Vapour
Pregunta 9
Pregunta
Where were most of the early useful molecules thought to have been created?
Pregunta 10
Pregunta
Who conducted the 'Primordial Soup' experiment in 1953?
Respuesta
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Stanley Müller
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Henry Maller
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Stanley Miller
Pregunta 11
Pregunta
What was the aim of the 'primordial Soup' experiment?
Respuesta
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To recreate the explosions that began the Earth
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To recreate the conditions of Earth before life evolved
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To observe how gases combusted
Pregunta 12
Pregunta
In the first Primordial Soup experiment, which organic compounds were in the solution?
Respuesta
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Ribose, Adenine, Hydrochloric Acid and Urea.
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Deoxyribose, Glucose, Carbolic Acid and Iron Phosphates.
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Glycine, Alanine, Lactic Acid and Urea.
Pregunta 13
Pregunta
Which molecules have been created from recent recreations of the 'Primordial Soup' experiment?
Respuesta
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Ribose, deoxyribose, purines, pyrimidines and nucleotides.
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RNA, water, hexose, phosphoric acid and nucleotides.
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DNA, water, purines, pyrimidines and hexose.
Pregunta 14
Pregunta
How do you create ATP from purines?
Respuesta
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Combine ribose and phosphates to adenine under UV light
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Combine deoxyribose and phosphates to adenine with an electrical charge sent through it.
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Combine ribose and phosphates to ammonia under UV light.
Pregunta 15
Pregunta
What is the name given to large aggregations of molecules?
Respuesta
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Cofactor Droplets
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Coacervate Droplets
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Cervical Droplets
Pregunta 16
Pregunta
How were the droplets made by Oparin (which resembled living cells) created in the lab?
Respuesta
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Dissolving glycerol and polysaccharides in water
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Dissolving gelatin and proteins in water
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Dissolving gelatin protein and polysaccharides in water
Pregunta 17
Pregunta
How did the droplets made by Oparin resemble living cells?
Pregunta 18
Pregunta
How did Oparin's stable droplets grow?
Pregunta 19
Pregunta
The first living cells are thought to have arisen from which kind of droplets?
Respuesta
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Coacervate droplets that contained polynucleotides
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Coacervate droplets that contained polysaccharides
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Coacervate droplets that contained protiens
Pregunta 20
Pregunta
Which of the following is a reason that some of the first living cells broke down?
Respuesta
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Not enough carbon dioxide to photosynthesis
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Not enough oxygen to respire
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Short supply of adenosine triphosphate
Pregunta 21
Pregunta
What is the definition of glycolysis?
Respuesta
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The breakdown of glucose to provide energy for the production of ATP
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The breakdown of glucose to provide energy for the production of proteins
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The anabolism of glucose to provide energy
Pregunta 22
Pregunta
The first organisms were:
Pregunta 23
Pregunta
The first cells had nucleic acids organised into coding systems for protein synthesis but they did not have...
Respuesta
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DNA
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Nuclear membranes
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Ribosomes
Pregunta 24
Pregunta
How did oxygen first appear in the atmosphere?
Pregunta 25
Pregunta
Why was atmospheric oxygen damaging?
Respuesta
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It created hydrogen peroxide that could attack RNA and DNA
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Oxygen over-exposure caused severe abnormalities in cells
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There was not enough of it
Pregunta 26
Pregunta
Which enzyme protects against the effects of hydrogen peroxide?
Respuesta
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Peroxase
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Hydrogenase
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Catalase
Pregunta 27
Pregunta
Which process produced atmospheric oxygen?
Respuesta
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Photolysis
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Respiration
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Radical Substitution
Pregunta 28
Pregunta
What happened to the remaining organic chemicals of the 'Primordial Soup'?
Respuesta
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They were broken down into hydrogen peroxide and reduced sediments
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They were broken down into carbon dioxide and oxidised sediments
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They were broken down into carbon monoxide and reduced sediments
Pregunta 29
Pregunta
Which processes do eukaryotes and prokaryotes have in common?
Respuesta
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Glycolysis and respiration
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Photolysis and protein synthesis
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Glycolysis and photosynthesis
Pregunta 30
Pregunta
What does the Symbiotic Theory suggest?
Respuesta
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All organelles work with one another, supporting the function of each other
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All organelles used to be individual prokaryotes
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All organelles can perform glycolysis
Pregunta 31
Pregunta
Which of the following are proof of the Symbiotic Theory?
Pregunta 32
Pregunta
How can we estimate the age of rocks?
Pregunta 33
Pregunta
In newer methods of determining the age of rocks, which element can be used?
Pregunta 34
Pregunta
How old is the oldest found invertebrate (with hard shells or exoskeletons)?
Respuesta
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60 million years old
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600 million years old
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6000 million years old
Pregunta 35
Pregunta
How old are the first vertebrae fossils?
Respuesta
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5 million years old
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50 million years old
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500 million years old
Pregunta 36
Pregunta
How old are the oldest microfossils that resemble bacteria?
Respuesta
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1100 million years old
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3100 million years old
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5100 million years old