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WorksheetsCell and Molecular Biology Week 2
Total questions: 15
Worksheet time: 8mins
Which statement is a part of the cell theory?
All cells come from pre-existing cells
Cells bacteria are prokaryotic
Eukaryotic cells are complex
Humans are multicellular
Which one is the statement from Schleiden & Schwann (1838-39)
All cells come from preexisting cells
All living things are made up of cells
New cells arise from the pre-existing cells
Spontaneous generation does not occur
The cell theory said that
Atoms create all matter
Living things evolve
Cell activities depends on the activities of subcellular structures within the cell
Cells are the basic unit of structure and organization of organisms
What is the function of flagella?
Play a role in exchange of genetic information
Moving the cell through a liquid environment; respond to food/poison
Adhere externally to the cell walls
External structure that provides a rigid framework
All plants are made of cells. This was discovered by....
Matthias Schleiden
Rudolf Virchow
Robert Hooke
Aristotle
What is survival of the fittest?
The competition between organism with same species and morphology
Survival of organism in certain area
Individuals with variations that are better adapted will be more likely to survive than those without
Characteristics that will be passed to the offspring.
What is chemical evolution?
Organic life sprung from non-organic matter exclusively through a natural mechanistic process on a pre-biotic earth.
Newly formed organic molecules polymerized to produce larger molecules and macromolecules
Chemoheterotrophs-consume organic molecules for both energy and carbon
Organic compounds in organic soup became depleted, prokaryotes that are able to make their own organic compounds from inorganic precursors
What is RNA World theory?
Single RNA strands can copy in solutions containing nucleotides without enzymes.
RNA molecules called ribozymes have been found to catalyze many different reactions
RNA come first before DNA
Aggregates of artificially produced prebiotic molecules
Which came first, RNA or DNA?
RNA
DNA
What does Lamarck’s Theory state?
Evolution occurred by the inheritance of acquired characteristics
Environment pressure causes body changes
All species of life have evolved over time from common ancestors through the process called natural selection
Organisms are arranged from simple to complex
Darwin’s Theory state that
“All species of life have evolved over time from common ancestors through the process called natural selection”
True
False
What is Taxonomy?
A system of existences
The science of biological classification
Systems help to clarify relationships among organisms
The study of biological diversity and its evolution.
The hierarchy order is
Kingdom--species--family--order--class--genus--phylum
Kingdom--phylum--class--order--family--genus--species
Kingdom--phylum--class--family--order---genus--species
Kingdom--family--phylum--class--order--genus--species
Homology is
“Similar structure and position but different function-derived from a common ancestor”
True
False
Analogy is
“Similar function but different origin; Not derived from a common ancestor; convergent evolution-similar selection pressure”
True
False
