Author: Anonymous

Draw the VSEPR structure of CF4. What is the approximate F-C-F bond angle?

A polar covalent bond is found in which of these compounds?  

For each pair of compounds, select the compound that should have the higher lattice energy. AlF3 vs NaF KCl vs MgO

A number is written in scientific notation when it is expressed as a number between 1 and 10 that is multiplied by a power of 10.

Choose 1 of the questions below and answer all parts of the question. Make sure you note which question you are choosing.  You need to make complete sentences but if you can answer the questions in one sentence, that is fine. Make sure you answer each part of the question for full points. OPTION 1 Scenario  A 30 year old woman is brought into the emergency department with a broken hip.  This is a very strange injury for someone so young. The doctor learns that this is not her first broken bone.  She has fractured almost every limb as well as broken several ribs.  Several tests are ordered including a bone density scan the results of which indicate the patient has a T score lower then -2.5. She has the bones of an 80 year old yet she is only 30. Bone density scan test results: T score between 0 and -1 ~ Normal T score between -1 and -2.5 ~ osteopenia – pre-osteoporosis T score smaller than -2.5 ~ osteoporosis  Option 1: These questions refer to the above scenario. Although she is young, what is this patient most likely suffering from? (2 pt) Over production of the hormone PTH could lead to this problem, why? (2pts)    OPTION 2: What structures (cell types and fibers) must be present in order for the bone to heal correctly (2.pts)? What are the functions of each of the components? (2pt)   OPTION 3:  What dietary supplement might be necessary to ensure adequate bone development for a child who consumes a diet rich in calcium but rarely receives exposure to sunlight (2pts)? WHY? (2pts) OPTION 4:  Explain in detail, Calitonin’s role in calcium homeostasis (1.5). Include effectors,control center, receptors, input and outputs (2.5).

Choose 1 of the questions below and answer all parts of the question. Make sure you note which question you are choosing.  You need to make complete sentences but if you can answer the questions in one sentence, that is fine. Make sure you answer each part of the question for full points. OPTION 1 What type of tissue(s) is/are found in immovable joints (1pt)? Give two examples of immovable joints (1pts).  How are slightly movable joints different from immovable and freely movable joints (2pt)? OPTION 2 What is the technical name of the joint in the picture (1pt)? Briefly explain what might have happened (1pt)? What structure(s) should help reinforce this joint (1pt)? What is the structural and functional classification of this joint (1pt)?  OPTION 3 A 23-year-old male is admitted to the emergency room with a fracture of the femur. X-rays are taken, and he asks if he will grow anymore. Examining the X-rays, you observe that the epiphyseal cartilage of his proximal femoral end appears undamaged. Based on this, how would you answer his question about his future growth? OPTION 4 Explain in detail, PTHs role in calcium homeostasis (1.5pts). Include effectors, control center, receptors, input and outputs (2.5).

Which connective tissue is found underlying all epithelium?

Which cell breaks down bone matrix?

This system produces blood, while this system circulates blood.

Which cell does not differentiate from the same lineage?