What is the organelle in plants cells that is used for photosynthesis?
Chloroplasts
100
Name the 6 phases of the cell in mitosis.
Interphase, Prophase, Metaphase, Anaphase, Telephase and Cytokinesis
100
What model do we use for cell membranes?
Fluid mosiac model.
100
membranous system of channels and flattened sacs that traverse the cytoplasm. Rough ER-site of protein synthesis. Smooth ER synthesizes steroid hormones and other lipids, connects rough ER to golgi apparatus, carries out various detoxification processes
What is endoplasmic reticulum?
200
Which has no nuclear or internal membranes?
prokaryotes
200
What is the function of the cytoplasm?
to hold all the organelles in place
200
What occurs in Metaphase during mitosis?
chromosomes meet in the middles and the centrioles push with spindle fibers on the centromeres.
200
Which part of the phospholipid is hydrophobic and which is hydrophillic?
Hydrophobic tail, hydrophillic head.
200
sacs of hydrolytic enzymes surrounded by a single membrane, principal site of intracellular digestion macromolecules. Carry out programmed destruction of cells, apoptosis using their hydrolytic enzymes. Found in large numbers in phagocytic white blood cells.
What is lysosomes?
300
Which type of organelle do both eukaryotic and prokaryotic cells have?
Ribosomes
300
Name two organelles used for movement in cells.
Cilia and flagella
300
What forms in Prophase I of meiosis that does not form in prophase of mitosis?
tetrad.
300
Which of the following require energy to occur? Diffusion, osmosis, facilitated diffusion, active transport.
Active transport
300
cell to cell communication. provide cytoplasmic channels between adjacent cells in animals. large molecules can pass from cell to cell. in the heart, they enable cells to communicate in order to coordinate contractions of muscle tissue. plasmodesmata=channels between cells in plants.
What is gap junctions?
400
Why are eukaryotic cells considered to have a "true nucleus"?
It is bound by a double membrane
400
Name at least 2 cell organelles with double membranes.
Mitochondria, chloroplast, nucleus (in animal cells).
400
What is passed on to daughter cells?
an exact copy of genetic material (DNA)
400
How do large molecules move in and out of the cell?
through vesicles and vacuoles, endocytosis which includes phagocytes (" cellular eating") and pinocytosis ("cellular drinking"), and exocytosis
400
contain enzyme that converts harmful H2O2 to water. In liver cells, detoxify alcohol.
What is peroxisomes?
500
What type of DNA do eukaryotic cells have, linear or circular?
Circular
500
The golgi apparatus finishes, ____, ____ & ships proteins
sorts, labels
500
Where did mitosis in eukaryotes likely evolve from?
binary fission in bacteria
500
What is the difference between endocytosis and exocytosis?
In endocytosis, the vesicle movement brings substances in large amounts into the cell and in exocytosis, the vesicle movement ejects substances in large amounts out of the cell.
500
cell to cell communication. junctions function as rivets, fastening cells together into strong epithelial sheets in animals. in cervix of uterus, they strengthen tissue during stretching required during childbirth