Biology Olympiad- Origin of Life

Descrição

To help revise for the Origins of Life section of the Biology Olympiad
Emma Lloyd
Quiz por Emma Lloyd, atualizado more than 1 year ago
Emma Lloyd
Criado por Emma Lloyd quase 8 anos atrás
16
2

Resumo de Recurso

Questão 1

Questão
How long ago was the Earth formed from a cloud of dust particles surrounding the sun?
Responda
  • 200-300 million years ago
  • 480 billion years ago
  • 4500-5000 million years ago

Questão 2

Questão
How was the core of our Earth formed?
Responda
  • Heat generated by gravitational compression and radioactive decay melted the interior
  • The temperature from the sun was so hot that the rock formations on Earth simply melted inwards
  • Combustion of argon

Questão 3

Questão
What molten elements are the Earth's core made out of?
Responda
  • Nickel and Iron
  • Hydrogen and Oxygen
  • Magnesium and Nitrogen

Questão 4

Questão
The Earth's liquid mantle is made out of silicates of which two elements?
Responda
  • Silicon and Calcium
  • Magnesium and Iron
  • Carbon and Nitrogen

Questão 5

Questão
What is the Earth's crust made of?
Responda
  • Light silicate compounds
  • Only sedimentary rock
  • Molten lava

Questão 6

Questão
Which gases were present in the first atmosphere of Earth?
Responda
  • Nitrogen, oxygen, carbon, methane, nitrogen and hydrogen sulphide.
  • Hydrogen, water vapour, methane, ammonia, nitrogen and hydrogen sulphide.
  • Hydrogen, carbon, water vapour, methane and nitrogen.

Questão 7

Questão
Which property did the early atmosphere have?
Responda
  • Photolysis properties
  • Oxidising properties
  • Reducing properties

Questão 8

Questão
What was missing from the Earth's early atmosphere?
Responda
  • Oxygen
  • Nitrogen
  • Water Vapour

Questão 9

Questão
Where were most of the early useful molecules thought to have been created?
Responda
  • In shallow oceans
  • In the depths of igneous rock
  • In the atmosphere

Questão 10

Questão
Who conducted the 'Primordial Soup' experiment in 1953?
Responda
  • Stanley Müller
  • Henry Maller
  • Stanley Miller

Questão 11

Questão
What was the aim of the 'primordial Soup' experiment?
Responda
  • To recreate the explosions that began the Earth
  • To recreate the conditions of Earth before life evolved
  • To observe how gases combusted

Questão 12

Questão
In the first Primordial Soup experiment, which organic compounds were in the solution?
Responda
  • Ribose, Adenine, Hydrochloric Acid and Urea.
  • Deoxyribose, Glucose, Carbolic Acid and Iron Phosphates.
  • Glycine, Alanine, Lactic Acid and Urea.

Questão 13

Questão
Which molecules have been created from recent recreations of the 'Primordial Soup' experiment?
Responda
  • Ribose, deoxyribose, purines, pyrimidines and nucleotides.
  • RNA, water, hexose, phosphoric acid and nucleotides.
  • DNA, water, purines, pyrimidines and hexose.

Questão 14

Questão
How do you create ATP from purines?
Responda
  • Combine ribose and phosphates to adenine under UV light
  • Combine deoxyribose and phosphates to adenine with an electrical charge sent through it.
  • Combine ribose and phosphates to ammonia under UV light.

Questão 15

Questão
What is the name given to large aggregations of molecules?
Responda
  • Cofactor Droplets
  • Coacervate Droplets
  • Cervical Droplets

Questão 16

Questão
How were the droplets made by Oparin (which resembled living cells) created in the lab?
Responda
  • Dissolving glycerol and polysaccharides in water
  • Dissolving gelatin and proteins in water
  • Dissolving gelatin protein and polysaccharides in water

Questão 17

Questão
How did the droplets made by Oparin resemble living cells?
Responda
  • They acquired a membrane-like lipid coating
  • They developed nuclei
  • They could fully synthesis proteins

Questão 18

Questão
How did Oparin's stable droplets grow?
Responda
  • Mitosis
  • Absorbing chemicals from less stable droplets
  • Endocytosis

Questão 19

Questão
The first living cells are thought to have arisen from which kind of droplets?
Responda
  • Coacervate droplets that contained polynucleotides
  • Coacervate droplets that contained polysaccharides
  • Coacervate droplets that contained protiens

Questão 20

Questão
Which of the following is a reason that some of the first living cells broke down?
Responda
  • Not enough carbon dioxide to photosynthesis
  • Not enough oxygen to respire
  • Short supply of adenosine triphosphate

Questão 21

Questão
What is the definition of glycolysis?
Responda
  • The breakdown of glucose to provide energy for the production of ATP
  • The breakdown of glucose to provide energy for the production of proteins
  • The anabolism of glucose to provide energy

Questão 22

Questão
The first organisms were:
Responda
  • Heterotropic and aerobic
  • Heterotrophic and anaerobic
  • Homotrophic and aerobic

Questão 23

Questão
The first cells had nucleic acids organised into coding systems for protein synthesis but they did not have...
Responda
  • DNA
  • Nuclear membranes
  • Ribosomes

Questão 24

Questão
How did oxygen first appear in the atmosphere?
Responda
  • Respiration of the first living cells
  • Natural combustion
  • Ultra-violet radiation acting on water vapour

Questão 25

Questão
Why was atmospheric oxygen damaging?
Responda
  • It created hydrogen peroxide that could attack RNA and DNA
  • Oxygen over-exposure caused severe abnormalities in cells
  • There was not enough of it

Questão 26

Questão
Which enzyme protects against the effects of hydrogen peroxide?
Responda
  • Peroxase
  • Hydrogenase
  • Catalase

Questão 27

Questão
Which process produced atmospheric oxygen?
Responda
  • Photolysis
  • Respiration
  • Radical Substitution

Questão 28

Questão
What happened to the remaining organic chemicals of the 'Primordial Soup'?
Responda
  • They were broken down into hydrogen peroxide and reduced sediments
  • They were broken down into carbon dioxide and oxidised sediments
  • They were broken down into carbon monoxide and reduced sediments

Questão 29

Questão
Which processes do eukaryotes and prokaryotes have in common?
Responda
  • Glycolysis and respiration
  • Photolysis and protein synthesis
  • Glycolysis and photosynthesis

Questão 30

Questão
What does the Symbiotic Theory suggest?
Responda
  • All organelles work with one another, supporting the function of each other
  • All organelles used to be individual prokaryotes
  • All organelles can perform glycolysis

Questão 31

Questão
Which of the following are proof of the Symbiotic Theory?
Responda
  • Cells can respire
  • Mitochondria resemble aerobic bacteria
  • DNA resembles RNA

Questão 32

Questão
How can we estimate the age of rocks?
Responda
  • Measure their depth below the surface
  • Use TEM microscopy
  • Measure how much energy they release when combusted

Questão 33

Questão
In newer methods of determining the age of rocks, which element can be used?
Responda
  • Francium
  • Uranium
  • Argon

Questão 34

Questão
How old is the oldest found invertebrate (with hard shells or exoskeletons)?
Responda
  • 60 million years old
  • 600 million years old
  • 6000 million years old

Questão 35

Questão
How old are the first vertebrae fossils?
Responda
  • 5 million years old
  • 50 million years old
  • 500 million years old

Questão 36

Questão
How old are the oldest microfossils that resemble bacteria?
Responda
  • 1100 million years old
  • 3100 million years old
  • 5100 million years old

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