Exam (elaborations)

Intro to Biology

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Module
Alevel biology

Institution
Alevel Biology

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Uploaded on January 13, 2025
Number of pages 5
Written in 2024/2025
Type Exam (elaborations)
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intro to biology assured a arseni

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Intro to Biology
Assured A+

Arsenic - ansAccording to Dr. Felisa Wolfe-Simon and her colleagues one bacterium has substituted this
substance for phosphate in its DNA

Artificial selection - ansWhen humans intervene and breed specific animals for specific traits this is called

Asexual Reproduction - ansThe type of reproduction which results in one cell splitting into 2 identical cells

ATP (Adenosine tri-phosphate) - ansThe immediately usable form of energy storage used in metabolism

Biological evolution - ansThis is a change in the overall genetic characteristics of a group of organisms over
multiple generations of parents and offspring

Biological Hierarchy - ansLevels of organization from smallest to largest is: atoms->
molecules>Cells>tissues>organs>organ
system>organism>population>community>ecosystem>biome>biosphere

Biology - ansThe science that studies living things

Cell - ansOne of the characteristics of life that is the basic unit of structure and function

Cellular Respiration - ansThis metabolic process breaks apart (catalyzes) the sugar molecules to release the
chemical potential energy of sugar and capture it in an immediately usable form of energy storage

Charles Darwin - ansThe person who proposed the theory of natural selection and evolution

Chemistry - ansThe science that studies the elements that make up matter, their interactions and physical
properties

, Chromosomes - ansGenetic material in humans is spread among 46 of these, or 23 pair of these and contain
genes

Control Group - ansThe group in the experiment that is maintained under a set of standard conditions with no
change in the independent variable

Control group - ansThis is the baseline or normal part of an experiment

Controlled experiment - ansThe researcher measures the value of the dependent variable for 2 groups of study
that are the same except for the one group is exposed to the independent variable

Correlation - ansTwo or more aspects of the natural world behave in an interrelated manner

Dependent variable - ansThe characteristic that changes as a result of the independent variable

DNA - ansA characteristic of life that says that living things reproduce with this substance

Draw conclusions - ansStep five of the scientific method that states whether or not the hypothesis was
supported or rejected by the data

Evolve - ansA characteristic of living things that happens at the population level, change over time

Experimental factor or variable - ansThe thing for which you are testing to see its affects in an experiment

Experimental group - ansThe part of the experiment in which the scientist has manipulated one factor or
variable as compared to the control and is the independent factor

False - ansTrue or False: A hypothesis can be proven to be true.

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