Topic 2 - Cell Division and Mitosis Flashcards
Every cell has a nucleus that contains ___________ which carry ________, which carry the instructions for making new cells and carrying out functions. What two words complete the sentence?
Chromosomes, genes.
Cells divide in a series of stages called the ______ _______ one of these processes is _________ where the cell divides into two identical copies. What three words complete the sentence?
Cell cycle, mitosis.
The cell cycle _____ _____ with age and is very ____ before puberty and ______ afterwards. Which 4 words finish the sentence?
Slows down, fast, slow.
The first stage of the cell cycle is _________ where the DNA ________ and normal cell activities are carried out. What two words finish the sentenceA.
Interphase, replicates.
The second stage of the cell cycle is _______, where one set of chromosomes is pulled to each side, dividing the ______. What two words finish the sentence?
Mitosis, nucleus.
The third stage of the cell cycle is _________ where the other _______ divide, forming two identical _________ cells. What three words finish the sentence?
Cytokinesis, organelles, daughter.
The cells are not all the same, as when they grow and develop they ________. What word finishes the sentence?
Differentiate.
Some differentiated cells cannot replicate at all and _____ ____ cells replace damaged or ageing cells. What two words finish the sentence?
Adult stem.
Unlike animal cells, plant cells can differentiate throughout their lives and form at __________ in the shoots and roots of the plant. What word finishes the sentence?
Meristems.
Producing an identical copy of an organism is called _______, this can easily be done in plants as they can differentiate at ____ time. What two words finish the sentence?
Cloning, any.
It is difficult to clone animals as they cannot _________ past early growth. What word finishes the sentence?
Differentiate.
An egg and sperm cell fuse to form a _______, the inner cells in this ball of cells are called _________ _____ cells as they can differentiate into any type of cell. What three words finish the sentence?
Zygote, Embryonic Stem.
Bone marrow is a source of ______ stem cells. What word finishes the sentence?
Adult.
Scientists are using ________ and ______ stem cells to treat previously incurable diseases like blindness, although this is still early in development. What two words finish the sentence?
Embryonic, adult.
Cells from plant ________ can be used to clone plants rapidly, some with ______ features. What two words finish the sentence?
Meristems, ideal.
