What is the name of the part of the microscope that the objectives are attached

Question

What is the name of the part of the microscope that the objectives are attached to? (choose the best answer)

The purpose of melanocytes is to protect the other cells from becoming damaged and turning into cancer cells.

Select one:

True

False

Question 12

It is amazing that when we swim in a pool, we do not absorb the water from the pool into our bodies. Which layer of the epidermis is responsible for this?

Select one:

a. stratum basale

b. stratum spinosum

c. stratum granulosum

d. stratum lucidum

e. stratum corneum

Question 13

Which knob moves the stage up and down more quickly - the coarse focus knob or the fine focus knob?

Select one:

a. coarse focus knob

b. fine focus knob

Which of the following organ systems does the pancreas belong to:

Select one or more:

a. endocrine

b. reproductive

c. immune

d. digestive

The thumb is lateral to the middle finger.

Select one:

True

False

The elbow is distal to the wrist.

Select one:

True

False

Explanation / Answer

Question: What is the name of the part of the microscope that the objectives are attached to____?

Answer: Nosepiece

The part of the microscope to which the objectives are attached is the nosepiece, at the bottom of the body tube. It is the rotating part of the microscope.

Question: The purpose of melanocytes is to protect the other cells from becoming damaged and turning into cancer cells.

Answer: False

The basic function of melanocytes is the production of the pigment melanin, that determines colour of the skin, eyes and hair. These pigment-producing cells are located in the basal layer of epidermis.

Question 12: It is amazing that when we swim in a pool, we do not absorb the water from the pool into our bodies. Which layer of the epidermis is responsible for this?

Answer: e. stratum corneum

The stratum corneum is the most superficial layer of the epidermis which forms the apical surface of the skin. The cells that compose the stratum corneum are dead keratin cells, waterproofs the body.

Question 13: Which knob moves the stage up and down more quickly - the coarse focus knob or the fine focus knob?

Answer: a. coarse focus knob

The coarse focus knob - moves the stage up and down more quickly, enables larger focusing and it uses low power.

The fine focus knob - moves the stage up and down slightly, enables sharp focusing and  it uses high power.

Question: Which of the following organ systems does the pancreas belong to:

Answer: a. endocrine, d. digestive

The pancreas belong to the endocrine as well as the digestive system. The pancreas secretes hormones in addition to digestive systems.

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