Biology Quiz 1/21/20
Structure and Function of Nucleus
Nucleus contains nearly all cell's DNA and also the coded instructions for making proteins and other important molecules. It is surrounded by a nuclear envelope and chromatin
Prokaryote
cells that do not enclose DNA in nuclei
types of bulk transport
endocytosis and exocytosis
Things that all cells have
nucleus, cytoplasm, ribosomes, and DNA, cell membrane
What is passive transport
passive transport is diffusion, facilitated diffusion and osmosis.
Homeostasis
relatively constant physical and chemical conditions that cells must maintain
What organelles are important to creating proteins
ribosomes and E.R (endoplasmic reticulum)
Cell Theory
states that all living things are made up of cells, cells are basic units of structure and function in living things, new cells are produced from existing cells
What organelles capture and release energy
the mitochondria and chloroplasts
What two things do the cells in multicellular organisms do to maintain homeostasis
they become specialized for certain tasks and communicate with one another.
Eukaryote vs Prokaryote
Eukaryote encloses DNA in nuclei, Prokaryote do not enclose DNA in nuclei
Cells
Basic units of life
Cell wall + cell membranes
Cell wall supports shapes and protects the cell. Cell membrane regulates what enters and leaves the cell and also protects and supports the cell.
Eukaryote
Cells that enclose their DNA in nuclei
What 4 things do single cell (unicellular) organisms do to maintain homeostasis
They grow and respond to the environment, transform energy and produce.
What organelles are in charge of structure, storage, and support
Vacuoles are in charge of storage, cytoplasm supports the cell and microtubules are in charge of structure.
What is active transport
active transport is molecular transport and bulk transport