Name B. Multiple Choice (Please encircle one letter for each correct answer!) 1.
ID: 3475353 • Letter: N
Question
Name B. Multiple Choice (Please encircle one letter for each correct answer!) 1. Moving from the wrist toward the elbow is an example of moving in a direction: distal b. proximal c. medial d. lateral 2. Resistance to X-ray penetration is called radiodensity. From the following selections, choose the one that correctly shows the order of increasing radiodensity of materials in the human body a air, liver, fat, blood, bone, muscle b. air, fat, liver, blood, muscle, bone c. air, fat, blood, liver, muscle, bone d. air, liver, blood, fat, muscle, bone 3. If an animal cell lacked centrioles, it would not be able to: a. move roteins c. divide d. produce DNA 4. The following is a list of the steps involved in the process of secretion by the Golgi apparatus: 1. material moves from saccule to saccule by means of transfer vesicles 2. exocytosis 3. products from RER are packaged into transport vesicles 4. secretory vesicles are formed at the trans face 5. vesicles arrive at the cis saccule 6. enzymes modify arriving proteins and glycoproteins The proper order for these is: a) 5,6, 1, 4, 2,3 b) 2,3, 5, 6, 1,4 c) 4,3, 1, 6, 5, 2 d) 3,5, 6, 1, 4, 2 e) 1,3, 6, 4, 2,5Explanation / Answer
3. (c). Centrioles are present in animal cell. They help in cell division by pulling the chromosomes to two poles of the cell. Ultimately nuclear membrane is formed around the chromosomes and the cell divides into two. So in absence of centrioles, the cell will not divide.
4. (d ).
1. (b). Proximal means closer to the point of the attachment. If one moves from the point of attachment of arm with the body towards the the fingers, then first comes the elbow, then the wrist.. So the elbow is proximal to the wrist as elbow is closer to the body.
2 (b). Order of Increasing radiodensity air > fat > liver > blood > muscle> bone
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