The Cell_Lesson 10.2 Flashcards
(124 cards)
Living things are made up of…
one or more cells
The size and shape of a cell relates to…
Its job or function
A nerve cell’s projections allow it to…
send signals over long distances
Disk-shaped red blood cells carry…
Oxygen and travel through small blood vessels
Tube-like plant xylem cells are hollow and…
Carry water and dissolved substances
Every cell is surrounded by a protective covering called a…
Cell membrane
A flexible covering that protects the inside of a cell from the environment outside a cell
Cell membrane
Cell membranes are mostly made up of what two macromolecules?
Proteins and a type of lipid called a phospholipids
Phospholipids are categorized under what macromolecule?
Lipids
Act as a HIGHLY selective barrier between the external environment and the inside of the cell
Cell membrane
A stiff structure outside the cell membrane
Cell wall
The cell wall is composed of mostly what?
Carbohydrates, such as cellulose
Cellulose is categorized under what macromolecule?
Carbohydrates
A cell wall protects a cell from…
Attack by viruses and other harmful organisms
In some plant and fungal cells, a cell wall helps maintain the cell’s…
Shape and gives structural support
Act as a NON-selective barrier between the external environment and the inside of the cell
Cell wall
Cells appendages are often used for…
Movement
Long, tail-like appendages that whip back and forth and move a cell.
Flagella
Short, hair-like structures
Cilia
Arms, legs, claws, and antennae are types of…
Appendages
Flagella and cilia are types of…
Cell appendages
Can move a cell or move molecules away from a cell
Cell appendages
Moves harmful substances away from your lungs
Cilia
Most of the water in a cell is in…
The cytoplasm