AnswersSummer School LA-Biology CRThe Musculoskeletal and Integumentary Systems

The Musculoskeletal and Integumentary Systems — Cumulative exam Answers

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21
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Which shows the pathway of structures that sperm pass through or by to exit the body?

A
testes → urethra → glands → sperm duct → penis
B
penis → urethra → glands → sperm duct → testes
C
testes → sperm duct → glands → urethra → penis
D
sperm duct → glands → urethra → testes → penis
22
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Gerald is admitted to the hospital because he has pneumonia. His blood work shows a low number of T-cells.The doctor wants to order a test to see if Gerald is HIV positive. Why would the doctor do this?

A
HIV attacks T-cells. If Gerald has HIV, he will have a lower T-cell count, and his immune system will be less able to protect him from other diseases.
B
HIV attacks the pneumonia virus and uses cells to reproduce. If Gerald has HIV, he will also have pneumonia.
C
Gerald may have taken antibiotics for HIV. These antibiotics would make his immune system more susceptible to pneumonia.
D
Bacteria create an infection that strengthens the immune system to fight off HIV, but not pneumonia. This is why Gerald still has pneumonia.
23

Which is the jellylike substance within cells?

A
plasma membrane
B
DNA
C
cytoplasm
D
ribosomes
24

Which statement describes the general process of diffusion?

A
Molecules move from inside of the cell to outside of the cell.
B
Molecules start out unevenly distributed and end up evenly distributed.
C
Molecules start out evenly distributed and end up unevenly distributed.
D
Molecules move from outside of the cell to inside of the cell.
25

Which describes the role of carbon dioxide in photosynthesis?

A
It is a reactant, so it is released by the plant.
B
It is a product, so it is released by the plant.
C
It is a reactant, so it enters the plant.
D
It is a product, so it enters the plant.

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