Structures
In many cells, the structure that controls the cell's activities is the...
Nucleus
In eukaryotic cells, chromosomes carrying genetic information are found in the...
Nucleus
The organelle that breaks down lipids, carbs, and proteins into small molecules that can be used by the cell are called...
Lysosomes
Which process always involves the movement of materials from inside the cell to outside the cell?
Exocytosis
Hooke
The first to see dead cells under a microscope
Despite differences in size and shape, at some point all cells have...
DNA , a cell membrane, cytoplasm, and ribosomes
What distinguishes a eukaryotic cell from a prokaryotic cell is the presence of...
A nucleus and membrane-bound organelles
Describe the role of the Golgi Apparatus....
Modifies, sorts, and packages proteins and other materials from the ER for storage inside the cell or release outside the cell
What are examples of active transport?
Endocytosis, exocytosis, molecular transport, and bulk transport
Leeuwenhoek
First to see living cells
The nucleus includes the structures...
DNA, nuclear envelope, and nucleolus
How are prokaryotic and eukaryotic cells alike?
They both contain DNA and a Cell Membrane
The human brain is an example of an....
Organ
The active transport of small molecules or ions across a cell membrane is generally carried out by transport proteins called...
The sodium/potassium pump
Brown
Discovered the Nucleus
Which cell structures are sometimes found attached to the Endoplasmic Reticulum?
Ribosomes
Bacteria
Domain of unicellular prokaryotes that have cell walls containing peptidoglycan.
Cell Membrane
Flexible barrier surrounding all cells, controlling what enters and exits the cell
The movement of water molecules across a selectively permeable membrane is known as...
osmosis
Cell Theory
Concept of Biology that states :
1. All living things are composed of cells
2. Cells are the basic unit of structure and function in living things
3. All cells come from other cells
what is Diffusion
The movement of particles from an area of higher concentration to an area of lower concentration. Does NOT require energy from outside of the cell
Eubacteria
Prokaryotic and single celled
Cytoskeleton
Network of protein filaments that gives the cell it's shape, internal organization, cell movement
A substance that moves by passive transport tends to move...
Towards the area that is less concentrated
Homeostasis
Relatively constant internal, physical, and chemical conditions an organism maintains