Unit 1：Nutrients and their sources

1、单选题：
​(    ) is negatively related to animal body water.‎
选项：
A: Fat
B: Protein 
C: Mineral
D:  Carbohydrate
答案: 【 Fat】

2、单选题：
‎（  ）is the most abundant chemical element in plants and animals.‌
选项：
A: Oxygen
B: Carbon 
C: Hydrogen
D: Nitrogen
答案: 【 Oxygen】

3、单选题：
‎Carbohydrates don’t include（  ）.​
选项：
A: Cellulose 
B: Hemicellulose
C: Crude fiber
D: Lignin
答案: 【 Lignin】

4、单选题：
‍After deducting ADF from NDF, the remaining part is（   ）‍
选项：
A: Cellulose
B: Hemicellulose   
C: Crude fiber
D: Lignin
答案: 【 Hemicellulose   】

5、单选题：
‌The content of (    ) in plant seeds is lower than that in stems and leaves（  ）‏
选项：
A: Protein
B: Fat 
C: Nitrogen-free extract 
D: Crude fiber
答案: 【 Crude fiber】

6、多选题：
‌The content of (    ) in animals greatly exceeds that in plants.‎
选项：
A: Calcium 
B: Phosphorus
C: Potassium 
D: Sodium
E: Chlorine
答案: 【 Calcium ;
Phosphorus;
Sodium】

7、多选题：
​Primary moisture is also called（  ）‏
选项：
A: Free water 
B: Bound water
C: Unbound water 
D: irreducible water
E: Adsorbed water
答案: 【 Free water ;
Unbound water 】

8、多选题：
‍（  ） can not be analyzed by proximate analysis methods.‏
选项：
A: Crude protein
B: Crude fiber
C: Amino acid
D: Calcium
E: Water
答案: 【 Amino acid;
Calcium】

9、多选题：
​The main substance of ash in animals is（  ） ‎
选项：
A: Potassium 
B: Calcium
C: Phosphorus
D: Sodium
E: Sulfur 
答案: 【 Calcium;
Phosphorus;
Sodium;
Sulfur 】

10、多选题：
‌The feed proximate analysis method can measure the（  ）content in the feed.‏
选项：
A: Calcium
B: Phosphorus
C: Crude protein
D: Crude fat
E: Neutral detergent fiber
答案: 【 Crude protein;
Crude fat;
Neutral detergent fiber】

11、判断题：
​Water can be classified as a pure nutrient.‍
选项：
A: 正确
B: 错误
答案: 【 正确】

12、判断题：
​Nutrients can be simple chemical elements or complex compounds.‏
选项：
A: 正确
B: 错误
答案: 【 正确】

13、判断题：
‏The remaining part of the feed after the free water is removed is called dry matter.‌
选项：
A: 正确
B: 错误
答案: 【 错误】

14、判断题：
‍Animal diet is called feed.‍
选项：
A: 正确
B: 错误
答案: 【 正确】

15、判断题：
‏The content of nitrogen-free extracts in the feed can be directly determined.‍
选项：
A: 正确
B: 错误
答案: 【 错误】

16、判断题：
​Animals and plants contain basically the same types of chemical elements, with carbon being the most common.‏
选项：
A: 正确
B: 错误
答案: 【 错误】

17、判断题：
‌The water in the feed includes free water and bound water.‏
选项：
A: 正确
B: 错误
答案: 【 正确】

18、判断题：
‎The average nitrogen content of crude protein in the feed sample was 16%.​
选项：
A: 正确
B: 错误
答案: 【 正确】

19、判断题：
​Crude fiber is the main component of plant cell walls, including cellulose, hemicellulose, lignin and cutin.‍
选项：
A: 正确
B: 错误
答案: 【 正确】

20、判断题：
‎Crude ash is mainly inorganic substances such as mineral oxides or salts, and sometimes contains a small amount of sediment.‎
选项：
A: 正确
B: 错误
答案: 【 正确】

Week 2 Metabolism & function of nutrients

1、单选题：
‎Expressions of net energy for production（NEp）are not included（ ）‍
选项：
A: Weight gain
B: Hair production
C: Service
D: Breathing
答案: 【 Breathing】

2、单选题：
‌Nitrogen-corrected metabolic energy（MEn）is often used in（ ）‌
选项：
A:  Pig
B: Poultry
C: Ruminant
D: Aquatic animal
答案: 【 Poultry】

3、单选题：
‌The gas in the digestive tract mainly comes from（ ）‌
选项：
A: Methane
B: Hydrogen
C: Carbon monoxide
D: Methane and hydrogen
答案: 【 Methane】

4、单选题：
‍When the body water decreases（ ）, there will be loss of appetite and weight loss.​
选项：
A: 1%-2%
B: 8%
C: 10%
D: 20%
答案: 【 8%】

5、单选题：
‎（ ）is characterized by water loss, while electrolyte loss is relatively small.‎
选项：
A: Hypertonic dehydration
B: Hypotonic dehydration
C: Isotonic dehydration
D: General dehydration
答案: 【 Hypertonic dehydration】

6、单选题：
‎The first limiting amino acid of the swine corn-soybean meal diet is（ ）‎
选项：
A: Lys
B: Met
C: Thr
D: Trp
答案: 【 Lys】

7、单选题：
‌The amino acid that has a typical antagonistic relationship with Lys are（ ）‍
选项：
A: Arg
B: Met
C: Thr
D:  Glu
答案: 【 Arg】

8、单选题：
‍Which of the following amino acids are not essential amino acids for pigs（ ）‎
选项：
A: Lys
B: Met
C: Gly
D: Thr
答案: 【 Gly】

9、单选题：
‍The short-term storage form of carbohydrates in the body is（ ）​
选项：
A: Protein
B: Fat
C: Glycogen
D: Amino acid
答案: 【 Glycogen】

10、单选题：
‎（ ）is an important form of simple lipids.​
选项：
A: Monoglyceride
B: Diglycerides
C: Triglycerides
D: Cholesterol
答案: 【 Triglycerides】

11、单选题：
‌The only inorganic element that makes up thyroxine is（ ）‎
选项：
A: Chromium
B: Iodine
C:  Arsenic
D: Vanadium
答案: 【 Iodine】

12、单选题：
‍The main trace mineral elements that make up hemoglobin are（ ）‏
选项：
A: Iron
B: Copper
C: Zinc
D: Manganese
答案: 【 Iron】

13、单选题：
‍Which of the following vitamins is also called tocopherol（ ）‏
选项：
A: VA
B: VD
C: VE
D: VK
答案: 【 VE】

14、单选题：
‎The following vitamins related to blood clotting are（ ）‌
选项：
A: VA
B: VK
C: VC
D: VE
答案: 【 VK】

15、单选题：
‎Which of the following vitamins are part of coenzyme A and acyl carrier protein（ ）‎
选项：
A:  Niacin
B: VB6
C: Pantothenic acid
D: VB12
答案: 【 Pantothenic acid】

16、多选题：
‌Apparent metabolizable energy（AME）is the remaining energy after subtracting（ ）from the gross energy.‌
选项：
A: Fecal energy
B: Urine energy
C: Metabolizable fecal energy
D: Gas energy
E: Endogenous urine energy
答案: 【 Fecal energy;
Urine energy;
Gas energy】

17、多选题：
‏The physiological functions of water include（ ）‍
选项：
A: Forms the body
B: As a solvent
C: Maintains osmotic pressure
D: Body temperature regulation
E: Lubrication
答案: 【 Forms the body;
As a solvent;
Maintains osmotic pressure;
Body temperature regulation;
Lubrication】

18、多选题：
‏The ways animals lose water include（ ）‍
选项：
A: Excretion of feces
B: Perspiration
C: Respiration
D: Excretion through the product
E: Excretion of urine
答案: 【 Excretion of feces;
Perspiration;
Respiration;
Excretion through the product;
Excretion of urine】

19、多选题：
‍Which of the following amino acids are branched chain amino acids?（ ）‏
选项：
A:  Met 
B: Leu
C:  Ile
D: Thr
E:  Val
答案: 【