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WorksheetsBiophysics quiz
Total questions: 25
Worksheet time: 4mins
Miller and Urey's experiment supports which of the following theories on the origin of life?
Panspermia
God creation
Abiotic origin of life
Ice origins
The panspermia theory suggests
Life originated from abiotic molecules
Asteroid/rock carrying microbes hit the earth
Life originated from melted ice
Life originated from hydrothermal vents
How were biomolecules formed according to the theory of abiotic origin of life?
Lightning caused the reactions to create life
Lightning caused the reaction to create the first biomolecules
The lightning caused the death of life
All of these are correct
The first biomolecules that were formed were concentrated into the early seas. This is known as
Warm seas
Primordial soup
Carbon soup
All of these are correct
Which of the following theories suggest that life must've been first created in the depths of the ocean?
Panspermia
God creation
Meteorite crash
Hydrothermal vents
What is a protocell?
First-formed cellular structure
Oldest cellular organization
A cell formed in the hydrothermal vents
All of these
Which of the following theory, justifies that organisms evolved from water to land?
Panspermia
God Creation
Abiotic origin of life
Life creation from ice
Which of the following is true about the "clay theory"?
Clay has miniature crystals
Water must've been necessary for the creation of life
Clay crystals go through a cycle similar to genetic mutations
All of these are correct
What are the basic necessities for the creation of life?
CH4, CO2
NH3, PO4
H2, H2O
All of these
All life forms can be divided into 2 groups, which are there?
Lithotrophs
Autotrophs
Heterotrophs
Photosynthetic
Autotrophs are organisms that can
Breakdown simple molecules
Generate their own energy
Utilize other organisms for their energy requirements
All of these are correct
What is the full form of LUCA?
Last unknown common ancestor
Last universal common ancestor
Last underdeveloped common ancestor
Least understood common ancestor
Who is LUCA?
The first life form that must've formed that can be traced
The earliest/oldest living fossil found
The first bacterial cell
Can't say
Which are the 3 domains of life?
Autotrophs
Archea
Bacteria
Eukarya
How is the evidence for LUCA found?
Common ancestor traced
Common genes between 3 domains of life
The oldest living fossils examined
Can't say
The origin of living organisms from inorganic, non-living material is known as
The great oxygenation event
Abiogenesis
Genesis
None of these
Which of the following are fundamentally present in all living organisms?
Nucleic acids
Carbohydrates
Proteins
Lipds
Which of the following molecules is thought to have assembled first to create the first cell-like structure?
Nucleic acids
Carbohydrates
Proteins
Lipids
Which part of lipid molecules is hydrophilic?
The head
The tail
The carboxylic end
None of these
Which of the following forces caused the formation of the lipid bilayer that formed the very first cell-like structure?
Hydrogen bonding between lipid molecules
van der Waal's interactions between lipid molecules
Hydrophobic interactions between lipid molecules
Covalent bonding between lipid molecules
How are free ions are known to affect the aggregated lipid structure that is formed?
They stabilize it
They encourage more lipid association
They destroy it
None of these
"RNA was the essential precursor that led to the formation of the first living matter"... this is known as the ________
Abiogenesis
Endosymbiotic theory
RNA world hypothesis
Pangenesis
Which of the following evidence supports the endosymbiotic theory?
Mitochondria and chloroplasts have the same function
Mitochondria and chloroplasts have a photosynthetic function
Mitochondria and chloroplasts carry out aerobic respiration
Mitochondria and chloroplasts have their own DNA
The endosymbiotic theory is used to explain which of the following?
How cells were first formed
How life originated
How chloroplasts were first formed
All of these are correct
Which organism is known to have caused the first mass extinction in history?
Photosynthetic bacteria
Aerobic bacteria
Chloroplasts
Photosynthetic eukaryotes
