Biology 8.1 Biology 8.1 Questions and and answers (1)

Biology 8.1

Biology 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