Biology 1406: Exam 1 Review Test
Questions All Questions Solved
Correct 2026-2027 Updated.
Hierarchy of Life from smallest to largest - Answer 1. Cell
2. Multicellular Organism
3. Population
4. Community
5. Ecosystem
6. Biosphere
What is between cell and multicellular organism? - Answer tissue and organ system
Cell - Answer smallest unit of life
How many organ systems are there? - Answer 11
organisms - Answer individual living things
community - Answer All the different populations that live together in an area
Ecosystem - Answer include communities that interact through their shared physical
environment but not living
example of ecosystem - Answer home, rocks, sand
Biosphere - Answer Consists of all life on Earth and all parts of the Earth in which life exists,
including land, water, and the atmosphere.
Central Dogma - Answer DNA-transcription-RNA-translation-protein
Energy flow - Answer 1. cellular respiration (makes ATP)
2. photosynthesis (makes glucose needed to make ATP)
3. potential vs. kinetic energy
4. thermodynamics
,What determines the function of a protein? - Answer shape
Nothing in life is random except what? - Answer mutations and crossing over
Evolution - Answer Change over time; famous people; adaptions; mutations; natural selection
(survival of the fittest)
deoxyribonucleic acid (DNA) - Answer A complex molecule containing the genetic
information that makes up the chromosomes.
What makes proteins? - Answer DNA
Information in DNA is copied to what? - Answer RNA
Transcription - Answer process of going from DNA to RNA
What carries out most activities of life? - Answer Proteins
Message obtained from RNA is what? - Answer translated into proteins
Metabolism - Answer All of the chemical reactions that occur within an organism:
maintenance
growth
reproduction
2 primary metabolic processes - Answer photosynthesis and cellular respiration
Photosynthesis - Answer Conversion of light energy from the sun into chemical energy.
cellular respiration - Answer the process by which cells use oxygen to produce energy from
food
Anabolic - Answer build up
catabolic - Answer breaking down
, Matter - Answer Anything that has mass and takes up space
Matter is recycled - Answer Within and between ecosystems through biogeochemical cycles
carbon cycle - Answer circle of life
Adenosine Triphosphate (ATP) - Answer *one of the principal chemical compounds that living
things use to store and release energy
*free energy of the cell
*needed for every biological process
Homeostasis - Answer process by which organisms maintain a relatively stable internal
environment
negative feedback - Answer A primary mechanism of homeostasis, whereby a change in a
physiological variable that is being monitored triggers a response that counteracts the initial
fluctuation.
A problem that needs to be changed
positive feedback - Answer A physiological control mechanism in which a change in some
variable triggers mechanisms that amplify the change.
Organisms do what? - Answer REPRODUCE
Mitosis - Answer cell division in which the nucleus divides into nuclei containing the same
number of chromosomes
To grow
Cellular - Answer Skin cells
Offspring ____________ into mature, reproductive adults - Answer DEVELOP
biological evolution (DNA) - Answer the change over time in populations of related organisms
Questions All Questions Solved
Correct 2026-2027 Updated.
Hierarchy of Life from smallest to largest - Answer 1. Cell
2. Multicellular Organism
3. Population
4. Community
5. Ecosystem
6. Biosphere
What is between cell and multicellular organism? - Answer tissue and organ system
Cell - Answer smallest unit of life
How many organ systems are there? - Answer 11
organisms - Answer individual living things
community - Answer All the different populations that live together in an area
Ecosystem - Answer include communities that interact through their shared physical
environment but not living
example of ecosystem - Answer home, rocks, sand
Biosphere - Answer Consists of all life on Earth and all parts of the Earth in which life exists,
including land, water, and the atmosphere.
Central Dogma - Answer DNA-transcription-RNA-translation-protein
Energy flow - Answer 1. cellular respiration (makes ATP)
2. photosynthesis (makes glucose needed to make ATP)
3. potential vs. kinetic energy
4. thermodynamics
,What determines the function of a protein? - Answer shape
Nothing in life is random except what? - Answer mutations and crossing over
Evolution - Answer Change over time; famous people; adaptions; mutations; natural selection
(survival of the fittest)
deoxyribonucleic acid (DNA) - Answer A complex molecule containing the genetic
information that makes up the chromosomes.
What makes proteins? - Answer DNA
Information in DNA is copied to what? - Answer RNA
Transcription - Answer process of going from DNA to RNA
What carries out most activities of life? - Answer Proteins
Message obtained from RNA is what? - Answer translated into proteins
Metabolism - Answer All of the chemical reactions that occur within an organism:
maintenance
growth
reproduction
2 primary metabolic processes - Answer photosynthesis and cellular respiration
Photosynthesis - Answer Conversion of light energy from the sun into chemical energy.
cellular respiration - Answer the process by which cells use oxygen to produce energy from
food
Anabolic - Answer build up
catabolic - Answer breaking down
, Matter - Answer Anything that has mass and takes up space
Matter is recycled - Answer Within and between ecosystems through biogeochemical cycles
carbon cycle - Answer circle of life
Adenosine Triphosphate (ATP) - Answer *one of the principal chemical compounds that living
things use to store and release energy
*free energy of the cell
*needed for every biological process
Homeostasis - Answer process by which organisms maintain a relatively stable internal
environment
negative feedback - Answer A primary mechanism of homeostasis, whereby a change in a
physiological variable that is being monitored triggers a response that counteracts the initial
fluctuation.
A problem that needs to be changed
positive feedback - Answer A physiological control mechanism in which a change in some
variable triggers mechanisms that amplify the change.
Organisms do what? - Answer REPRODUCE
Mitosis - Answer cell division in which the nucleus divides into nuclei containing the same
number of chromosomes
To grow
Cellular - Answer Skin cells
Offspring ____________ into mature, reproductive adults - Answer DEVELOP
biological evolution (DNA) - Answer the change over time in populations of related organisms
