对应课程:点击查看
起止时间:2020-12-16到2021-02-28
更新状态:已完结
Week 1 Nutrients and their sources Unit 1：Nutrients and their sources
1、 ( ) is negatively related to animal body water.
A:Fat
B:Protein
C:Mineral
D: Carbohydrate
答案: Fat
2、 （ ）is the most abundant chemical element in plants and animals.
A:Oxygen
B:Carbon
C:Hydrogen
D:Nitrogen
答案: Oxygen
3、 Carbohydrates don’t include（ ）.
A:Cellulose
B:Hemicellulose
C:Crude fiber
D:Lignin
答案: Lignin
4、 After deducting ADF from NDF, the remaining part is（ ）
A:Cellulose
B:Hemicellulose
C:Crude fiber
D:Lignin
答案: Hemicellulose
5、 The content of ( ) in plant seeds is lower than that in stems and leaves（ ）
A:Protein
B:Fat
C:Nitrogen-free extract
D:Crude fiber
答案: Crude fiber
6、 The content of ( ) in animals greatly exceeds that in plants.
A:Calcium
B:Phosphorus
C:Potassium
D:Sodium
E:Chlorine
答案: Calcium ;
Phosphorus;
Sodium
7、 Primary moisture is also called（ ）
A:Free water
B:Bound water
C:Unbound water
D:irreducible water
E:Adsorbed water
答案: Free water ;
Unbound water
8、 （ ） can not be analyzed by proximate analysis methods.
A:Crude protein
B:Crude fiber
C:Amino acid
D:Calcium
E:Water
答案: Amino acid;
Calcium
9、 The main substance of ash in animals is（ ）
A:Potassium
B:Calcium
C:Phosphorus
D:Sodium
E:Sulfur
答案: Calcium;
Phosphorus;
Sodium;
Sulfur
10、 The feed proximate analysis method can measure the（ ）content in the feed.
A:Calcium
B:Phosphorus
C:Crude protein
D:Crude fat
E:Neutral detergent fiber
答案: Crude protein;
Crude fat;
Neutral detergent fiber
11、 Water can be classified as a pure nutrient.
A:正确
B:错误
答案: 正确
12、 Nutrients can be simple chemical elements or complex compounds.
A:正确
B:错误
答案: 正确
13、 The remaining part of the feed after the free water is removed is called dry matter.
A:正确
B:错误
答案: 错误
14、 Animal diet is called feed.
A:正确
B:错误
答案: 正确
15、 The content of nitrogen-free extracts in the feed can be directly determined.
A:正确
B:错误
答案: 错误
16、 Animals and plants contain basically the same types of chemical elements, with carbon being the most common.
A:正确
B:错误
答案: 错误
17、 The water in the feed includes free water and bound water.
A:正确
B:错误
答案: 正确
18、 The average nitrogen content of crude protein in the feed sample was 16%.
A:正确
B:错误
答案: 正确
19、 Crude fiber is the main component of plant cell walls, including cellulose, hemicellulose, lignin and cutin.
A:正确
B:错误
答案: 正确
20、 Crude ash is mainly inorganic substances such as mineral oxides or salts, and sometimes contains a small amount of sediment.
A:正确
B:错误
答案: 正确
Week 2 Metabolism & function of nutrients Week 2 Metabolism & function of nutrients
1、 Expressions of net energy for production（NEp）are not included（ ）
A:Weight gain
B:Hair production
C:Service
D:Breathing
答案: Breathing
2、 Nitrogen-corrected metabolic energy（MEn）is often used in（ ）
A: Pig
B:Poultry
C:Ruminant
D:Aquatic animal
答案: Poultry
3、 The gas in the digestive tract mainly comes from（ ）
A:Methane
B:Hydrogen
C:Carbon monoxide
D:Methane and hydrogen
答案: Methane
4、 When the body water decreases（ ）, there will be loss of appetite and weight loss.
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