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JMO ch 3 questions
Question | Answer |
---|---|
What happens during the cell cycle? | (1) continues growth, (2) development and division of cells, (3) repairs, replaces, and creates cells |
What are the 2 phases of the cell cycle? | (1) interphase (2) mitotic/mitosis |
What are the 3 phases of the interpahse? | G1 -> S -> G2 |
What are the 2 phases of the mitotic phase | (1) cytokinesis (2) mitosis |
What are the 4 stages of mitosis? | (1) prophase (2) metaphase (3) anaphase (4) telophase |
What happens during the prophase? | (1)DNA condenses (2) nucleus disappears (3) spindle fibers form |
What happens during the metaphase? | chromosomes line up in the middle of the cell |
What phase is the shortest phase? | metaphase |
What happens during the anaphase? | (1)chromosomes separate (2) spindle fibers pull chromosomes in |
What happens during the telophase? | (1) nuclear membranes form (2) identical nuclei form |
What are 3 traits of stem cells? | (1) unspecialized cells (2) can become many different types of cells (3) found mostly in young organisms |
Give 3 examples of tissues? | muscle, cartilidge, blood |
Give 3 examples of organs? | stomach, brain, intestine |
What happens during cytokinesis? | cell cytoplasm and organelles divide |
Explain the purpose of the cell cycle? | reproduce, grow, develop, replace, repair |
What is cell differentiation? | cells use different parts of the chromosomes instruction |