Master this deck with 29 terms through effective study methods.
Imported from Quizlet
Protein synthesis Cell enlargens Organell synthesis occurs G1 checkpoint checks for DNA mutation
Synthesis of DNA is replicated and chromatids pair up
2nd growth phase. Energy stores increase and protein synthesis occurs
prophase, metaphase, anaphase, telophase
division of the cytoplasm to form two separate daughter cells
Under a light microscope you can watch the growing root tip of plants HCL used to separate cells Squashed to form a single layer. Stains used to bind DNA together
Acetic or orcein
To let enzymes during dna replication to work the attraction between histone proteins and dna has to weaken. Making dna less dense and not visible
Identical sister chromatids
The hub where centrioles are
Cell with half the usual number of chromosome
Diploide cell
it looses the ability to divide and enters the G0 phase of mitosis
a stem cell's ability to differentiate into different cell types
these stem cells can differentiate into any type of cell. A fertilised egg, or zygote and the 8 or 16 cells from its first few mitotic divisions are totipotent and make up a whole organism
these stem cells can form all tissue types but not whole organisms. Present in early embryos
these stem cells can only form a range of cells within a type of tissue
due to the lack of organelles and nucleus they have a short lifespan of 120 days.
the cells are present at an early stage of embryo development and are totipotent.
the mass of cells after seven days of embryo development which are pluripotent
these cells are present throughout life from birth. Found in specific regions and are multipotent but research suggests they can be made into pluripotent
meristematic tissue which is pluripotent
in areas wherever growth is occurring. Also found in between the phloem and xylem tissues called the vascular cambium.
muscle tissue in the heart is damaged as a result of a heart attack, so stem cells replace it
the body's own immune system destroys the insulin-producing cells int he pancreas; patients have to inject insulin for life. Replace the cells in the pancreas
the symptoms like shaking are caused by the death of dopamine producing cells in the brain. Drugs only delay the progress
quicker growth of skin then taking skin graft from other body parts
potential new drugs can be tested on cultures of stem cells before being tested on animals and humans
we are now making embryos in labs rather then having left over from fertility treatment the embryos die after we extract the stem cells religious objection as life starts at conception and is murder