Physiology of the Osteoclast

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Science, Biology
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University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of osteoblasts in bone tissue?
To secrete the matrix that forms bone tissue
To regulate blood calcium levels
To transport nutrients to bone cells
To degrade bone matrix
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which cell type is responsible for bone resorption?
Osteoclasts
Osteoblasts
Osteocytes
Chondrocytes
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From which type of cells do osteoclasts originate?
Chondrocytes
Osteoprogenitor cells
Macrophages
Fibroblasts
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ruffled border of an osteoclast responsible for?
Secreting bone matrix
Degrading bone tissue
Transporting calcium
Absorbing nutrients
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is NOT involved in the degradation of the organic part of bone?
Tartrate resistant acid phosphatase
Collagenases
Cathepsin K
Matrix metalloproteinases
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does acid play in the function of osteoclasts?
It helps in the formation of bone matrix
It denatures proteins on the bone surface
It inhibits osteoclast activity
It transports calcium into the blood
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which hormone increases the activity of osteoclasts?
Glucagon
Calcitonin
Parathyroid hormone (PTH)
Insulin
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