RNR 4037 Green, LSU, Exam 3 Final Questions & Answers 2024/2025
Single stomach for digestion - ANSWERSDefine monogastric.
- visual
- mechano-reception
- chemoreception
- electroreception - ANSWERSWhat are the 4 ways of feed acquisition in fish?
Lateral line - ANSWERSWhat is an example...
Single stomach for digestion - ANSWERSDefine monogastric.
- visual
- mechano-reception
- chemoreception
- electroreception - ANSWERSWhat are the 4 ways of feed acquisition in fish?
Lateral line - ANSWERSWhat is an example of mechanoreception?
- Barbels
- Tastebuds
- Rosettes - ANSWERSWhat are some examples of chemoreception?
Ampullae - ANSWERSWhat is an example of electroreception?
Overtaking prey items by swimming faster - ANSWERSDefine ram feeding.
Creating a negative pressure in order to feed, usually characteristic of an inferior mouth -
ANSWERSDefine suction feeding.
Biting, rasping, and masticating food in order to handle it - ANSWERSDefine manipulation.
- Mechanical breakdown of food
- Prey handling
- Mucous release - ANSWERSWhat are the 3 purposes of the mouth and buccal cavity?
,- Grasp and retain prey
- Manipulation
- Filtration - ANSWERSWhat are the 3 purposes of gill rakers and teeth?
Esophagus - ANSWERSWhat is this term?
The beginning of the alimentary canal that retains food and release enzymes for the start of digestion
Stomach - ANSWERSWhat organ is responsible for the first chemical breakdown of carbs, proteins, and
lipids?
HCl - ANSWERSWhich compound found in the stomach denatures proteins?
- Sac-shaped (catfish)
- Y-shaped (salmonids)
- J-shaped (milkfish)
- "Straight" or no stomach (carp, larval fish) - ANSWERSWhat are the 4 types of stomachs in fish and give
an example for each?
Finger-like projections from the anterior intestine that increases the surface area of the intestine -
ANSWERSDefine pyloric cecae.
Intestine - ANSWERSWhich organ is the site of digestion?
Rapid uptake and evacuation - ANSWERSThe intestine of herbivores is long and thin-walled for what
reasons?
Short retention time - ANSWERSThe intestine of carnivores is short with many cecae for what reason?
, Slow uptake and evacuation - ANSWERSThe intestine of omnivores is short and thick-walled for what
reasons?
Long, thin-walled - ANSWERSHerbivores have what type of intestines?
Short with many cecae - ANSWERSCarnivores have what type of intestines?
Short, thick-walled - ANSWERSOmnivores have what type of intestines?
Rectum - ANSWERSWhich organ holds digested material prior to evacuation via the anus?
Rectal glands - ANSWERSWhat unique structure to elasmobranchs helps aid in getting rid of salt?
Endogenous feeding: Egg yolk is used for feeding as the fish have a primordial gut and no stomach for
protein digestion. Cell differentiation occurs here
Early exogenous feeding: the fish still have no true stomach, but they take part in pinocytosis and
phagocytosis which is the engulfing of food items by the intestines. Exogenous enzymes also play a role
here.
Later exogenous feeding:
A true stomach is present and adult feeding habits ensue - ANSWERSWhat are the 3 stages of gut
development? Describe them.
Physiological need for food - ANSWERSDefine hunger.
Desire to eat - ANSWERSDefine appetite.
Sense of fullness - ANSWERSDefine satiety.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R168,38. You're not tied to anything after your purchase.
