Cell Basics
Where do all cells come from?
Other cells
What is an organelle?
A structure within the cell with a specialized function.
What does homeostasis mean?
Regulation of internal environment to maintain stability
1.What are stem cells?
2.What are two places stem cells can be found?
undifferentiated cells
embryos and adult bone marrow
What is the most basic unit of life?
cell
List two places you can find ribosomes.
rough ER and cytoplasm
Organize the following terms from most broad to most specific: tissue, organism, cell, organ system, organ
organism, organ system, organ, tissue, cell
What are two of the types of eukaryotic cells that we have learned about?
plant and animal cells
List 3 organelles that plant cells have that animals cells do not have.
cell wall, chloroplast, and central vacuole
Name the 3 types of passive and 3 types of active transport.
Passive: diffusion, facilitated diffusion, osmosis
Active: molecular pump, endocytosis, exocytosis
List the 3 parts of interphase AND what happens in each.
G1: cell grows and makes proteins, S: DNA Replication, G2: cell grows and makes more proteins
DAILY DOUBLE!!!
What is Ms. Ervin's favorite snack?
HINT: it's not normally in her snack box because she devours them too quickly and refuses to buy them because she will inhale them...
cheez-its
Which organelle packages and modifies protein?
AND what did I compare it to?
Golgi apparatus; amazon warehouse
What is osmosis? And is it active or passive transport?
Movement of water; passive
What is the difference between benign and malignant tumors?
Benign stays in one area; malignant metastasizes to the rest of the body
List three differences between prokaryotes and eukaryotes.
Eukaryotes have a nucleus, prokaryotes don’t. Eukaryotes can be multicellular. Eukaryotes have membrane-bound organelles. Eukaryotes divide by mitosis, prokaryotes divide by binary fission.
Explain the differences between hypertonic, isotonic, and hypotonic.
hyper-shrivels; iso-stays the same; hypo-swells
Explain what happens during each stage of PMAT.
prophase-chromosomes gather close, spindle fibers start forming, nuclear envelope dissipates
metaphase-chromosomes line up in middle, spindle fibers connect at centromeres
anaphase-split the chromosomes into sister chromatids and start pulling towards opposite ends of the cell
telophase-cleavage furrow shows the cell beginning to split, nuclear envelope reforms and spindle fibers get smaller