3.1 | 3.4 | 3.3 | 3.4 | 3.5 |
---|---|---|---|---|
What is a prokaryote?
Bacteria with no nucleus, no membrane bound organelles. Have a cell wall, cell membrane, ribosomes,chromosomes and reproduce Asexually
|
what is active transport?
moving molecules AGAINST OR UP the concentration gradient (molecules move from an area of low concentration to an area of high concentration) uses energy
|
What is Isotonic Solution?
A solution that is balanced therefor equal particles and equal water, it is homeostasis
|
What is hypertonic solution?
like when you have a headache not enough water in cell. water is leaving the cell.
|
What are phospholipids
Cell membrane are composed of two layers of this
|
What is a eukaryote?
Animal, plant, fungus, protists. They have a nucleus. Has all normal organelles reproduce sexually or asexually
|
What is passive transport?
The movement of molecules from an area of greater concentration to an area of lesser concentration. This does not take energy to do (pefume analogy)
|
What is hypertonic solution?
A solution with more particles in the solution, outside therefor the solution with less concentration of water.
|
What is hypotonic solution?
Water going into cell. cell blows up like a balloon
|
What is cholesterol?
Something that strengthens the cell membrane
|
What are Autotrophs?
Make food by photosynthesis, chloroplast, green. Plants, some bacteria, some protists
|
What is diffusion?
The movement of molecules from an area of HIGh concentration to an area of low concentration until the molecules are equally balanced (in the container)
|
What is hypotonic solution?
A solution with less particles in the solution (inside) therefor solution has a greater concentration of water.
|
What is endocytosis?
Bring materials into the cell. Cell membrane surrounds and brings in nutrients
|
What are proteins?
Something that helps materials across the membrane.
|
What is heterotroph?
Goes and gets food, hunt/decompose. Does not have chloroplast. Animals and fungus
|
What is osmosis?
Diffusion of water across a membrane the movement of WATER molecules from an area of greater concentration to an area of lesser concentration THROUGH a membrane
|
What is mitochondria?
Produce energy for the cell (atp)
Has its own dna. Where cellular respiration happens. Get them from your mom therefor you can track mitochondrial DNA to find matriarchal heritage. |
What is exocytosis?
pushes waste out of the cell.
The cell membrane surrounds and pushes out waste. |
What are carbohydrates?
something that act as identification tags
|
What are choroplasts?
Have some o their own dna. Found in autotrophs. Always green because they absorb red and green wavelengths and reflect green. Chlorophyll in the pigment that reacts to red and blue light in photosynthesis.
|
What is facilitated diffusion?
Moves molecules down the concentration gradient (from high to low concentration through a protein)
it assists molecules across a membrane |
What is isotonic solution?
water going in and out of cell
|
What is Phagocytosis?
a form of endocytosis that is specifically bringing in large particles for digesting. It literally means "cell eating" Immune cells called macrophages do phagocytosis to isolate, digest and destroy invading bacteria and viruses.
|
What is the fluid mosaic model.
A model that describes the arrangement of molecules that make up a cell membrane.
|