Fish Quiz

Question 1

Esophagus

Answer 1

extends from the mouth to the stomach

Question 2

Stomach

Answer 2

a strong muscle. the stomach wall secretes hydrochloric acid (acid 2.0) and digestive enzymes. they soften and break down food.

Question 3

What can stop hydrochloric acid

Answer 3

bile

Question 4

Pyloric Ceca

Answer 4

small finger-like pouches that absorb the nutrients that were in the food

Question 5

Pancreas

Answer 5

produces insulin. releases digestive enzymes into the intestine. break down food.

Question 6

Intestine

Answer 6

finish the job of absorbing energy and digestion

Question 7

Liver

Answer 7

produces bile and excretes it to the gallbladder

Question 8

Gallbladder

Answer 8

stores bile

Question 9

Multiple functions of the bile in the liver

Answer 9

1. emulsification
2. neutralizes hydrochloric acid
3. ensure toxins are returned to the intestine for excretion

Question 10

Emulsification

Answer 10

breaking down lipids so they can fit through the cell and be absorbed and used as nutrients

Question 11

Swim Bladder

Answer 11

fish fill the bladder w/ oxygen. when its inflated the fish float the the surface and when its deflated they sink

Question 12

Urinary Bladder

Answer 12

pink thing near the swim bladder that stores urine untill it is excreted

Question 13

Kidney

Answer 13

brown thing next to the swim bladder that helps to control the amount of water in their bodies. used to remove urea and waste from the blood.

Question 14

Heart (purpose)

Answer 14

closed circulatory system. pumps blood around the body.

Question 15

Pattern of blood

Answer 15

heart->gills->rest of the body

Question 16

Parts of the heart

Answer 16

1. sinus venosus
2. atrium
3. ventricle
4. bulbous arteriosis

Question 17

Sinus venous

Answer 17

oxygen-poor blood from the veins collects in the sinus venosus

Question 18

Atrium

Answer 18

large muscular chamber, a one-way compartment for blood about to go to the vesicle

Question 19

Ventricle(of the heart)

Answer 19

much bigger, and stronger because it has to push all over the fish’s body

Question 20

Bulbus Arteriosis

Answer 20

maintains a steady flow of blood to the gills

Question 21

Where is blood pumped after the bulbous arteriosis?

Answer 21

the vertical aorta which is connected to the BA.

Question 22

Fish Respiration

Answer 22

fish exchange gasses using gills located on either side of the pharynx. they pull oxygen-rich water over their gill filaments and push oxygen-poor water out through the opening in the sides of the pharynx.

Question 23

Countercurrent exchange

Answer 23

how to fish exchange oxygen in their blood

Question 24

Lamella

Answer 24

used to increase the surface area in contact with the environment to maximize gas exchange

Question 25

Operculum

Answer 25

hard bony flap composed of four fused bones that protect the gill opening

Question 26

Excretion

Answer 26

consequence of protein breakdown

Question 27

Role of ammonia in excretion

Answer 27

when proteins are broken down the amino group removed must be dealt with. the amnio group is changed to ammonia (toxic, soluble in water)

Question 28

IF the organism has a sufficient source of water.... (something to do with ammonia)

Answer 28

the organism will dilute ammonia and then excrete it from the body. the liver will then convert the ammonia into urea which is less toxic and uses less water to excrete.

Question 29

The effect of salt on saltwater fish

Answer 29

they tend to lose water because of osmosis. to get rid of excess salt, they pump salt through cells in their gills and their kidneys. this is reversed in freshwater fish

Question 30

Lateral Line

Answer 30

a sense organ that consists of a row of scales that most fish have extending from their head to tail, senses movement in the water

Question 31

Nervous system

Answer 31

the brain is situated at the anterior end of the spinal cord and has several different parts

Question 32

5 parts of the brain we learned

Answer 32

1. olfactory nerve 2. cerebrum 3. optic lobe 4. cerebellum 5. medulla oblongata

Question 33

Olfactory Nerve

Answer 33

helps to smell. at the front are the smaller (olfaction) detectors a.k.a. the olfactory nerves

Question 34

Cerebrum

Answer 34

voluntary activities of the body. used in most vertebrates.

Question 35

Optic Lobe

Answer 35

fish can distinguish colors (for mating)

Question 36

Cerebellum

Answer 36

coordinates body movements

Question 37

Medulla Oblongata

Answer 37

controls automatic functions (heart breathing, digestion, blood vessels) transfers messages (brain and spinal cord)

Question 38

Bile

Answer 38

prevents ulceration of the intestine

Question 39

Lungfish

Answer 39

when the rivers dry up they bury themselves in the mud and make a mucus egg like thing around themselves and they leave one hole for breathing. they can stay in it for up to 4 years

Question 40

LAteral Line

Answer 40

helps fish detect movement and vibration in the surrounding water including predators and prey

Question 41

Reproduction

Answer 41

the eggs of fish are always fertilized wether externally or internally

Question 42

Oviparous

Answer 42

eggs that hatch after they have been laid by the parent . the embryos obtain food by the yolk in the egg

Question 43

Ovovivipaurous

Answer 43

the eggs stay in the mother after fertilization. mom doesnt provide food because it is the yolk "young born "alive"".

Question 44

Viviparous

Answer 44

the embyos stay in the mothers body after internal fertilization. they get their food 1st form the yold and then from the mothers body. sometimes they eat other embryos.

Question 45

Species of fish that can live in saltwater but breed in the freshwater

Answer 45

anadromous fish (salmoln and sturgeon live in the ocean but lay eggs in freshwater.)

Question 46

fish that fish that live in freshwater but migrate to the ocean to breed

Answer 46

catadromous fish

Question 47

European eels

Answer 47

swim out to the Sargasso Sea to lay eggs. The young eels find their way to freshwater and migrate upstream to live, then back to saltwater to breed.

Question 48

3 types of fish

Answer 48

jawless, cartilaginous, and bony

Question 49

Bony

Answer 49

bony fish make up the class osteichthyes. almost all living bony fish are ray-finned.

Question 50

Cartilaginous

Answer 50

the skeletons of these fish are made out of cartilage (sharks, rays, skates, lumpfish, sawfish, etc...)

Question 51

Rays

Answer 51

are kite-shaped with whip-like tails that are longer than their bodies and have stinging spines (viviparous)

Question 52

Skates

Answer 52

shorter tail, are rounder, and have fleshier tails with a small fin (oviparous)