Animal 4 Flashcards

1
Q

all animals are ____tropic

A

heterotropic

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2
Q

overall flow and transformation of energy within an organism

A

bioenegtics

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3
Q

true or false:

not all energy and molecules that comes in body actually make it into cells of the body

A

true
gut is external space
nothing in here has necessarily gone through your body

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4
Q

the production/ synthesis of biological molecule

A

biosynthesis:

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5
Q

the metabolic rate of a non-growing endotherm that is at rest, has an empty digestive tract, and is not experiencing stress

A

Basal metabolic rate (BMR)

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6
Q

amount of energy used per unit time

A

metabolic rate

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7
Q

do large or small animals have higher BMRs

A

large animals has higher BMR than smaller animals overall but not per body mass

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8
Q

elephant or mouse uses more energy

A

mouse uses smaller overall, but more per unit body mass

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9
Q

can be used to determine what:

  • oxygen consumption
  • caloric intake vs out (food consumption/ waste production)
  • heat production
  • CO2 production
A

animal`s energy use

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10
Q

nutrients such as amino acids, fatty acids, and minerals that an animals needs to eat as their own body cannot produce them

A

essential nutrients

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11
Q

the chemical and mechanical breakdown of food into absorbable components

A

digestion

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12
Q

animal who plucks out food particles in water

A

suspension eater

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13
Q

filter eater:

A

type of suspension eater who uses special filter to obtain particles from water

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14
Q

animal that lives in or on its food source;

A

substrate feeders

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15
Q

animal that will drink fluid from a living host

A

fluid feeder

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16
Q

animal that consume large bites/ particles of food that need to be chewed or dealt with when they enter the body; most animals

A

bulk feeder

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17
Q

tube extending from mouth to anus

digestion system also consists of other organs

A

alimentary tube

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18
Q

the closing or constriction along the alimentary canal by circular muscles when flexed

A

the sphincter

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19
Q

first site of mechanical AND chemical digestion

A

oral cavity

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20
Q

role of salivary amylase

A

enzymatic breakdown of carbs

21
Q

PROCESS OF SWALLOWING FOOD

A

pharnyx opens to tracheea (wind pipe) and esophegous (tube to stomch)
while food passes, the epiglottis closes, cutting off tracheea so food doesnt go down wrong type

22
Q

the alternation contractions and relaxation of paired muscles, allows food to go down esophagus, and down into the stomach

A

process of peristalsis

23
Q

what is the stomach covered in

A

surface of stomach is covered in gastric pits and inside these are gastric glands

24
Q

3 cell types of gastric glands

A

1) mucous cell
2) chief cell
3) parietal cell

25
muccous cell function
produces mucus that provides protection of lining of stomcah
26
chief cell function
produces pepsinogens (inactive form of pepsin)
27
parietal cell function in stomach
yellow, releases H and Cl release ions into lumen (interior stomahc) and come together to form hydrochloric acis. HCl can break down layers around food cells and can activate inactive pepsinogen so it becomes active pepsin (pepsin is enzyme that breaks down proteins chemically)
28
the oral cavity, pharynx, and esophagus chemically digests which of these: carbs, protein, nucleic acids, and lipids
carbs
29
the stomach digests which of these | carbs, protein, nucleic acids, and lipids
protein
30
the pancreatic enzymes of the small intestine digest which of these carbs, protein, nucleic acids, and lipids
all of them
31
the epithelial enzymes of the small intestine digest which of these: carbs, protein, nucleic acids, and lipids
carbs proteins nucleic acids
32
why is liver considered accessory organsÉ
it produces bile that drips into the gallbladder where it is stored
33
what triggers bile from gallbladder to go into the small intestine to emulsify itÉ
animal fat
34
how does bile digest fatÉ
breaks the clumped up fat (from the hydrophyillic environment) into small globs so digestive enzymes have more surface area to break down the fat
35
how do we not digest ourselvesÉ
HCl and digestive enzymes are inactive until that are released into the alimentary canal of lumen and also there is a rapid turnover of cells lining the alimentary canal
36
finger like projections that increase surface area located on folds of the stomch
villi
37
smaller villi located on epifedial cells of villi
microvilli
38
how to villi absorb nutrietns
in each villi there is a capillary vessel and a blood vessel that takes nutrients to inside of the capillary lining
39
most of the large intestine is the _____-
colon
40
the structure that functions as fermenting plant material using bactreria that would otherwise be indigestible by our organs
cecum
41
____ and ____ regulate energy storage
glucagon and insulin
42
how does glucagon regulate energy storage
excess energy stored in liver and muscle as glucagon, then as fat in adipose cells
43
how does insulin regulate energy storage
tells body to take up glucose and store as glycagon
44
hormone produced by adipose tissue.
leptin
45
If the animal has good fat storage, leptin levels are ___--> _____ appetite on long-term basis
high | suppressing
46
if animal is undernourished and has little fat stores--> produces less_____,stimulation animal to go out and find food to eat
leptin
47
_____and ____ are secreted in response to food. triggers sensation of fullness. Tells animal to stop eating
PPY and insulin
48
Animal hasn't eaten--> ____ is secreted triggering nerve impulses indicating animal is hungry, has positive effect in satiety center in the brain
ghrelin