Midterm exam Flashcards
Compared to ruminants, mono gastric animals cannot utilize cellulose because they cannot produce enzymes that can break down the _____ linkage.
a. a 1-4
b. a 1-6
c. B 1-4
d. B 1-6
c
Which of these 3 molecules contain ribose?
a. Ribonucleic acid (RNA)
b. Deoxyribonucleic acid (DNA)
c. Adenosine diphosphate (ADP)
d. Adenosine triphosphate (ATP)
a, c, d
The 2 sulfur containing amino acids are?
a. Tryptophan
b. Methionine
c. Lysine
d. Cystine
b, d
Which 3 factors influence the biological value of protein?
a. Essential amino acid composition
b. Non-essential amino acid composition
c. Digestibility of a protein
d. Denaturing of a protein
a, c, d
When feeding corn-based diets, the 2 amino acids that are most limiting for milk production are?
a. Leucine
b. Lysine
c. Valine
d. Methionine
b, d
Saturated fatty acids contain(s) _____ bonds
a. Single carbon to carbon
b. 1 double
c. 2 double
d. 3 double
a
The two essential fatty acids are?
a. Lignoceric
b. Linoleic
c. a-Linolenic
d. Oleic
b, c
Which of the following is a source of essential fatty acids?
a. Canola seed
b. Flax seed
c. Fish oil
d. All of the above
d
What is the difference between a vitamin and a mineral?
a. Vitamins are organic chemicals; minerals are inorganic elements
b. Vitamins are water-soluble; minerals are fat-soluble
c. Vitamins are macronutrients; minerals are micronutrients
d. Vitamins are essential; minerals are non-essential
a
Which of the following are stored primarily in the skeleton (bones, skull)?
a. Fluoride
b. Magnesium
c. Phosphorus
d. All of the above
d
Lips are an example of what kind of digestive adaptation?
a. Prehension
b. Mastication
c. Degluttition
d. None of the above
a
Which of the following regulates the flow of pancreatic juices into the small intestine?
a. Sphincter of Sphynx
b. Sphincter of Oddi
c. Pyloric sphincter
d. Caecum
b
Which of the following is NOT a fermentative chamber?
a. Rumen
b. Abomasum
c. Large Intestine
d. Caecum
b
Chylomicrons are involved in the transport of which nutrients?
a. Lipids
b. Vitamin A
c. Both
d. Neither
c
Which transport system in the body is a closed system?
a. Lymphatic system
b. Circulatory system
c. Operating system
d. None of the above
b
True or False
Animal tissue contains a large amount of carbohydrates as a result of blood sugar and stored glycogen.
False
True or False
As plants mature, the content of lignin decreases, and this leads to a decrease in fiber digestibility.
False
True or False
During the process of protein synthesis, transcription occurs before translation.
True
True or False
Insulin plays a key role in regulating lipid metabolism.
True
True or False
The lipid content of oilseeds is low
False
True or False
With the exception of conditions including edema and diarrhea, the water balance in animals is always zero.
True
True or False
Microbial protein provides up to 60% of the amino acids required by ruminants to support growth, reproduction and lactation
True
True or False
Up to 65% of the energy required by ruminants is derived from the glucose that is absorbed from the rumen.
False
True or False
Water-soluble vitamins are not typically stored in the body.
True
True or False
Fat-soluble vitamins are transported through the lymphatic system before the circulatory system.
True
True or False
Macrominerals are macronutrients
False
True or False
Intervention studies can determine causal links (i.e determine that A causes B)
True
True or False
Placebo effect is when a subject changes his/her behavior under observation.
False
True or False
Control groups are only used in epidemiological studies.
False
True or False
Both epidemiological studies and intervention studies are important in advancing our understanding of science.
True
