Cell Cycle : Mitosis & M

1. Cell Cycle: Mitosis & M DNA Structure, Replication & Making Protein What order should the diagrams on the right be in for mitosis? Number them 1 to 4. Label the DNA d helix: Backbone made of and . These are boned together. Four different They are: These are bonded together. DNA Replication: Label the diagram

2. Fill in the gaps: • How does phototropism a plant’s chances of survival? • Plants need light to , they can not move so they grow their in the direction of the source. Plants use the light energy to convert • & water into & oxygen. Glucose is the food source. • 2. It makes sure the emerging shootsgrow in the right direction out of the Define: Cell- Tissue- Organ- What kind of engineered cells be used to treat damaged tissues? Define phototropism: Zygotes divide via m to make an . Up to the -cell stage of a human embryo, all the cells are identical cells. Development of Plants & Animals What is a stem cell? What is a plant stem cell called? If adult humans have stem cells why can we not grow new limbs or organs? What are auxins? Where are they produced? What do auxins do in a plant? 1. 2. + What are genetic switches & what do they control? Label with chromosome numbers