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lora16 [44]
3 years ago
13

Use the following information to answer Questions 18 through 20. Despite its name, the Pacific sea horse is actually a type of f

ish. Its horse-shaped head gives it its name. This creature lives in the Pacific waters off the west coast of the Americas, from Peru to Southern California. Like many other ocean fish, sea horses face the constant challenge of losing water to their saltier environment.
18) When a Pacific sea horse’s body loses water to its environment, which process is responsible?

A) Exocytosis


B) Facilitated diffusion


C) Osmosis

19) When the sea horse eats a meal, its body breaks down organic molecules in the food. Some of those molecules enter cellular respiration, which ultimately produces the molecule ATP. In which part of the sea horse’s cells is ATP produced?

A) Golgi apparatus


B) Vacuoles


C) Mitochondria

20) When a sea horse sees a predator, its nervous system kicks into high gear. A charge reversal wave will travel the length of the nerve cell. When the impulse reaches the end of one nerve cell it must travel across the synapse to the next cell. Neurotransmitters exit one cell and enter another via a method of active transport called, exocytosis. Which structure is responsible for transmitting signals from one nerve cell to the next via this process?

A) Ribosome


B) Cell Membrane


C) Nucleus
Biology
2 answers:
alexgriva [62]3 years ago
8 0

18.

The correct answer is option C) Osmosis.

The transport of the water molecules takes place through the process of osmosis. Osmosis is the movement of the water molecules down the concentration gradient through a semipermeable membrane.

19.

The correct answer option C) Mitochondria.

In the eukaryotic cells, the mitochondria is the site of the ATP synthesis, that is why, it is also referred as powerhouse of the cell.

20.

The correct answer is option B) Cell Membrane .

During the excitation of the cells, depolarization of the cell membranes takes place by the exchange of the ions. Hence, the cell membrane are responsible for the transmission of the signals propulsion.


Whitepunk [10]3 years ago
7 0
20. Cell Membrane 19. Mitochondria 18.<span> Osmosis</span>


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