Cysteine, cystine, and methionine are classified as sulfur-containing ____________________?
Show answer Hide answer
Answer: A. Sulpher containing
Explanation
Amino acids serve as the fundamental building blocks for constructing cellular proteins. Certain amino acids incorporate sulfur atoms into their side-chain molecular structures. Cysteine, cystine, and methionine are standard amino acids that contain sulfur in their structures. Sulfur-containing amino acids play critical roles in forming stabilizing disulfide bonds in proteins. Methionine is an essential amino acid that animals must obtain directly from their diets. Cysteine helps form structural proteins like keratin found in hair, skin, and nails.
Animal nutritionists balance sulfur amino acid levels in livestock feed to promote optimal growth. Human nutritional diets rely on legumes and grains to supply adequate sulfur amino acids. Biochemists study disulfide bonds to understand how proteins achieve stable three-dimensional shapes. Hydrogen containing describes nearly all organic molecules and is not a specific diagnostic group. Copper containing describes metalloproteins rather than this specific trio of standard amino acids. Mg containing refers to minerals like magnesium found in chlorophyll rather than these proteins.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
Related questions
Q1. The development of distorted, swollen leaves that appear translucent and later turn necrotic is termed_________________?
Show answer Hide answer
Answer: C. Vitrification
Plant tissue culture environments can sometimes induce abnormal physiological growth responses. High humidity and restricted gas exchange inside culture vessels cause leaves to absorb excess water. This physiological mal...
Q2. Boron deficiencies can be remediated via soil or foliar application of_________________?
Show answer Hide answer
Answer: D. All the above
Micronutrient deficiencies can severely limit crop yields and overall plant health. Boron is an essential trace element required for cell wall formation and reproductive growth. Boron deficiencies can be corrected using...
Q3. The predominant soil orders mapped across Pakistan comprise___________________?
Show answer Hide answer
Answer: D. All the above
Soil classification systems group soils based on their formation processes and climatic conditions. Arid climates and alluvial sediment deposition shape the landscape across Pakistan. These regional factors give rise to...
Q4. Cytochrome oxidase and alcohol dehydrogenase serve as classic examples of____________________?
Show answer Hide answer
Answer: A. Oxidoreductases enzymes
Cytochrome oxidase and alcohol dehydrogenase facilitate crucial electron transfer and metabolic oxidation reactions. These biochemical transformations involve the removal of hydrogen atoms from specific substrate molecul...
Q5. The horticultural cultivation of grapevine crops is designated___________________?
Show answer Hide answer
Answer: C. Viticulture
Viticulture specifically refers to the agricultural science and specialized practice of growing grapevines. This scientific discipline encompasses all aspects of vineyard management from planting to harvesting fruit. The...
Q6. Hybrids generated by crossing mandarins with grapefruits yield________________________?
Show answer Hide answer
Answer: B. Tangelos
Crossing mandarin oranges with grapefruits successfully produces distinctive citrus hybrids known as tangelos. This controlled breeding process combines the sweet flavor profile of mandarins with tart grapefruit characte...