Exam (elaborations)
Biology 8.1 Biology 8.1 Questions and and answers (1)
Biology 8.1 Biology 8.1 Questions and and answers (1)
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Biology 8.1Biology 8.1
✅✅
Cellular processes require ________________________- the ability to do work. -
-energy
✅✅
________________________ is the study of the flow and transformation of energy in the
universe. - -thermodynamics
First law of thermodynamics- the law of conservation of ________________________:
✅✅
energy can be converted from ________________________ to
________________________ but it cannot be created nor destroyed. - -energy, one
form, another
Second law of thermodynamics: energy cannot be converted without the
✅✅
________________________ of usable energy, that is, ________________________
disorder or unusable energy- increases. - -loss, entropy
✅✅
Directly or indirectly, nearly all the energy for life comes from the
________________________. - -sun
✅✅
________________________ make their own food, either with energy from the sun or from
inorganic substances. - -autotrophs
________________________ ingest other organisms to obtain energy. - ✅✅-heterotrophs
✅✅
All of the chemical reactions in a cell are referred to as the cell's
________________________. - -metabolism
✅✅
A series of chemical reactions in which the product of one is the substance for the next is
called a ________________________ pathway. - -metabolic
✅✅
Catabolic pathways release energy by ________________________ larger molecules. -
-breaking down
✅✅
Anabolic pathways use energy to ________________________ larger molecules. -
-build
✅✅
Photosynthesis- ________________________ pathway in which light energy from the Sun
is converted to chemical energy for use by the cell. - -anabolic
✅✅
Cellular respiration- ________________________ pathway in which organic molecules are
broken down to release energy for use by the cell. - -catabolic
✅✅
In living things, ________________________ energy is stored in biological molecules. -
-chemical
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