Your 80 year-old great aunt, persis, was placing a canning jar on the top shelf of her pantry when she stepped awkwardly off the stool and twisted her leg at the hip. she felt a sharp pain in her hip and, after collapsing to the floor, found she could no longer stand. she was taken to the emergency room where an x ray showed that the neck of her femur was fractured. more detailed x ray images revealed reduced bone mass in the head and neck regions of the injured femur, in the ends of other long bones of the body and in the vertebrae. surgery was necessary to repair the fractured femur and a biopsy of the bone tissue indicated that the composition of the osteoid was normal. healing of the fractured femur is proceeding slowly.

5b. what normally happens to the microanatomy of the specific tissue you identified as it ages?

6. what age-related alterations in the activities of the cells you identified cause this change in microanatomy?

7. what is the significance of your great aunt being a woman?

8. what disease caused the abnormal anatomical symptoms and led to the fracture?

underline one: osteoporosis or paget's disease (osteitis deformans)

9. what aspects of the above description you distinguish these two possibilities? explain.

10. what notable anatomical features do the diseased locations have in common?

11. choose a therapy that is listed in your text and explain how it works to prevent this

disease.

[if modification of the diet is suggested, which of the basic four food groups would you recommend increasing consumption? ]

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.