Multiple Choice Flashcards
When bonds are broken…
Energy is released.
Fermentation is a(n) ______ process.
Anaerobic.
To form ATP from ADP one of the following must occur.
Lose 2 phosphate groups.
These molecules store the most energy.
Carbohydrates.
Aerobic stages of respiration take place in the _________.
Mitochondria.
Alcoholic fermentation produces 2 products. What are they?
Ethanol & carbon dioxide.
Plants are considered to be…
Autotrophic.
What is the net gain of ATP during glycolysis?
2
The following equation best respects what process? C6H12O6 + 6O2 –> 6CO2 + 6H2O
Fermentation
Some organisms do not need sunlight and instead use a process called…
Chemosynthesis.
Glycolysis breaks down glucose in this substance.
Co-enzyme A.
If oxygen is not available during glycolysis which of the following happens?
The process will enter fermentation.
The Krebs Cycle takes place in the…
Mitochondrial Matrix.
Why do we study digestion?
All of the above.
_________ is the process of taking the digested portions of feed into the blood stream.
Absorption.
What is the primary reason we feed concentrates?
High energy.
What is the purpose of the cardia valve?
Prevents food from coming back into the esophagus.
What type of digestive system does a camel have?
Ruminant.
What section of the ruminant stomach collects foreign material?
Reticulum.
What is the largest section of a ruminant’s stomach?
Rumen.
What 2 gasses can accumulate in the reticulum?
CO2 & Methane.
What organ allows animals like horses and rabbits to digest large amounts of roughages?
Cecum.
What type of digestion system does a pig have?
Monogastric.
Percentage of dry matter is one of the four things that affects Total digestible nutrients.of the following which is another factor.
All of the above.
This is partially digested food from the stomach that can be found in both ruminants and nonruminant animals.
Chyme.
Why can ruminants digest roughages easier than a non-ruminant animal?
Both A & B
A common hormone used in beef cattle is…
Melange stroll acetate (MGA)
The growth hormone estrogen is responsible for…
The development of the Female Reproductive Tract.
Thyroxine is a growth hormone responsible for…
Regulating metabolism.
Glucocortoids are produced by the adrenal gland and are responsible for…
Bone & muscle growth.
The function of nutrients includes the following:
All of the above.
Nutrition is…
The process of animals consuming and utilizing food.
How many essential nutrients are there?
6
Proper nutrition affects:
All of the above.
Carbohydrates are fed to animals as a source of…
Energy.
Fats can have more than ____ times the energy of carbs.
2
_______ will only be used as energy when carbs and fats are not adequate in the diet.
Protein.
What are the two types of minerals?
Macro & micro.
Proteins are made up of…
Amino acids.
What nutrient is the forgotten nutrient?
Water.
The lining of the stomach is called the…
Epithelium.
The stomach contains a digestive enzyme called pepsin. Pepsin’s main role is to digest what nutrient?
Protein.
Why are enzymes used?
Both A & B.
What is the corpus luteum?
The structure that produces the hormones that support a fertilized egg.
How does the vulva change during estrus?
It sweeps and becomes inflamed.
A freemartin is…
An infertile heifer exposed to male hormones.
Metritis is an infection of the…
Uterus.
This hormone ends an estrus cycle.
PGF2a
Hormones are…
Chemical messengers secreted by tissue and carried by blood to different tissue with a direct specific effect.
Why does the body need two kinds of messenger systems?
One is for short term immediate messages; the other is for long term changes.
These are the cells of the male reproductive tract that actually produce the sperm.
Sertoli cells.
These cells produce testosterone.
Leydig cells
What happens to sperm in the Epididymis?
It is mixed with nutritive substances and matured.
What happens to sperm in the Vas Deferens?
It is kept unchanged until ejaculation.
