Cell Structure
The jellylike substance fills the cell and holds the organelles in place
Cytoplasm
This process allows cells to obtain energy from glucose
Cellular Respiration
All living things are made of one or more of these basic units
Cells
This scientist was the first to observe cells using a microscope in 1665
Robert Hooke
This is the simplest level of organization in living things
This type of cell does NOT have a nucleus
Prokaryotic cell (prokaryote)
This type of transport moves materials across the cell membrane without using energy
Passive Transport
This rigid structure surrounds plant cells but is absent in animal cells
Cell Wall
This organelle is known as the "powerhouse of the cell" because it produces ATP
Mitochondria
This is the process by which plant cells use sunlight to make their own food
Photosynthesis
This characteristic means living things can produce offspring
Reproduction
This is the number of main principles in the cell theory
Three
A group of similar cells working together form this
Tissue
This type of cell contains membrane-bound organelles
Eukaryotic cell (or eukaryote)
This is the movement of WATER across a selectively permeable membrane
Osmosis
These green organelles are found only in plant cells and perform photosynthesis
Chloroplasts
This structure controls what enters and leaves the cell and provides protection
*Bonus* if you can tell me both names
Cell or plasma membrane
This organelle is the site of PROTEIN synthesis in the cell.
Ribosomes
Living things maintain stable internal conditions through this process
Homeostasis
According to cell theory, all living things are made of these
Cells
Different tissues working together to perform a specific function form this
Organ
Bacteria and archaea are examples of this type of cell
Prokaryotes (prokaryotic cells)
This is the movement of molecules from high to low concentration
Diffusion
This large, fluid-filled organelle is prominent in plant cells but small or absent in animal cells.
Central Vacuole (vacuole)
This organelle contains DNA and controls all cell activities, often called the cell's "brain" or "control center"
Nucleus
This organelle packages and ships proteins to other parts of the cell or outside it
GOLGI body (apparatus)
This characteristic refers to how living things react to changes in their environment
Response to stimuli (responsiveness)
This principle states that cells can only come from this source
Pre-existing cells (or other cells)
Multiple organs working together create this level of organization
Organ System
Animals, plants, fungi, and protists are made of this type of cell.
Eukaryotes (eukaryotic cells)
This process uses energy (ATP) to move materials from low to high concentration
Active transport
Animal cells contain these structures that help with cell division, but plant cells do not
Centrioles
This network of protein filaments gives the cell its shape and helps with movement
Cytoskeleton
These organelles contain digestive enzymes that break down waste and worn-out cell parts
Lysosomes
Living things increase in size and complexity through this characteristic
Growth and Development
These two scientists contributed to cell theory by studying animal and plant tissues in the 1830s.
Schleiden and Schwann
This is the highest level of organization, representing a complete living thing
Organism
Prokaryotic cells have their DNA located in this region of the cell instead of in a nucleus.
Nucleoid (nucleoid region)
This process allows large particles to enter the cell by engulfing them with the cell membrane
Endocytosis
Both plant and animal cells contain this organelle that produces ENERGY, but only plant cells also have chloroplasts.
Mitochondria