Science Praxis 5005 (Life Science)
Living things - answer have physical entities and biological processes, such as
homeostasis cell division, cellular respiration, and photosynthesis.
What are nonliving things classified as? - answer inanimate
Cell theory - answer(biology) the theory that cells form the fundamental structural and
functional units of all living organisms
What are the three components that make up cell theory? - answer1. All living things
are composed of cells
2. The cell is the smallest unit of life
3. All cells come from pre-existing cells.
What is the organization of life? - answer cell, tissue, organ, organ system, organism
Prokaryote - answerA unicellular organism that lacks a nucleus, mitochondria, or any
other membrane-bound organelle.
What floats freely throughout the prokaryote cell? - answerDNA
What are the two domains of prokaryotes? - answerBacteria and Archaea
Eukaryote - answera multicellular organism that contains a nucleus, mitochondria, and
membrane-bound organelles
Organelles - answerthe structures within the cell membrane or cell wall
cellular membrane - answerfluid, the permeable outside covering of the cell. In a plant
cell, this is a cell wall and it is rigid.
Nucleus - answerCommand center of the cell. Controls of the rest of the cell.
Where does DNA live in eukaryotic cells? - answerthe nucleus
Mitochondria - answerPowerhouse (energy source) of the cell
Cytoplasm - answerWater-like substance in the cell
What are Bacteria and Viruses? - answerprokaryotic cells and can only be seen under a
microscope.
, Bacteria - answerusually harmless
Virus - answerCauses diseases
What are animal and plant cells? - answerEukaryotic
Animal Cell - answerdoes not have a cell wall or chloroplast and a small vacuole.
Plasma membrane
Cellular respiration
Plant Cell - answercontains a cell wall, chloroplast, and large vacuole
Photosynthesis
symbiotic relationship - answerclose interaction between species in which one species
lives in or on the other
cellular respiration - answerAnimal Cells go through this
Taking in food in the form of carbohydrates, making energy in the form of ATP, and
removing waste.
Photosynthesis - answerPlant cells make their own food through this process.
Using carbon dioxide, water, and sunlight, and turning them into carbohydrates.
sexual reproduction - answerinvolves two parents
Each parent contributes a gamete to the process of reproduction.
Occurs in plant and animal cells
What is a gamete? - answersex cell
asexual reproduction - answerinvolves one parent
How do prokaryotes reproduce? - answerasexually through binary fission
While prokaryotes do not go through mitosis... - answerthe cell does split into identical
copies
binary fission - answerwhen a single parent cell doubles its DNA, then divides into two
cells. Occurs in bacteria.
Budding - answerwhen a small growth on the surface of parent breaks off to continue
growing into adulthood.
Occurs in yeast and some animals.
Fragmentation - answerwhen a piece of an organism breaks off, and those pieces
develop into a new organism. This happens with starfish.
Living things - answer have physical entities and biological processes, such as
homeostasis cell division, cellular respiration, and photosynthesis.
What are nonliving things classified as? - answer inanimate
Cell theory - answer(biology) the theory that cells form the fundamental structural and
functional units of all living organisms
What are the three components that make up cell theory? - answer1. All living things
are composed of cells
2. The cell is the smallest unit of life
3. All cells come from pre-existing cells.
What is the organization of life? - answer cell, tissue, organ, organ system, organism
Prokaryote - answerA unicellular organism that lacks a nucleus, mitochondria, or any
other membrane-bound organelle.
What floats freely throughout the prokaryote cell? - answerDNA
What are the two domains of prokaryotes? - answerBacteria and Archaea
Eukaryote - answera multicellular organism that contains a nucleus, mitochondria, and
membrane-bound organelles
Organelles - answerthe structures within the cell membrane or cell wall
cellular membrane - answerfluid, the permeable outside covering of the cell. In a plant
cell, this is a cell wall and it is rigid.
Nucleus - answerCommand center of the cell. Controls of the rest of the cell.
Where does DNA live in eukaryotic cells? - answerthe nucleus
Mitochondria - answerPowerhouse (energy source) of the cell
Cytoplasm - answerWater-like substance in the cell
What are Bacteria and Viruses? - answerprokaryotic cells and can only be seen under a
microscope.
, Bacteria - answerusually harmless
Virus - answerCauses diseases
What are animal and plant cells? - answerEukaryotic
Animal Cell - answerdoes not have a cell wall or chloroplast and a small vacuole.
Plasma membrane
Cellular respiration
Plant Cell - answercontains a cell wall, chloroplast, and large vacuole
Photosynthesis
symbiotic relationship - answerclose interaction between species in which one species
lives in or on the other
cellular respiration - answerAnimal Cells go through this
Taking in food in the form of carbohydrates, making energy in the form of ATP, and
removing waste.
Photosynthesis - answerPlant cells make their own food through this process.
Using carbon dioxide, water, and sunlight, and turning them into carbohydrates.
sexual reproduction - answerinvolves two parents
Each parent contributes a gamete to the process of reproduction.
Occurs in plant and animal cells
What is a gamete? - answersex cell
asexual reproduction - answerinvolves one parent
How do prokaryotes reproduce? - answerasexually through binary fission
While prokaryotes do not go through mitosis... - answerthe cell does split into identical
copies
binary fission - answerwhen a single parent cell doubles its DNA, then divides into two
cells. Occurs in bacteria.
Budding - answerwhen a small growth on the surface of parent breaks off to continue
growing into adulthood.
Occurs in yeast and some animals.
Fragmentation - answerwhen a piece of an organism breaks off, and those pieces
develop into a new organism. This happens with starfish.
