Question

Protein and oil content of soybean is ________% and ________%, respectively.

• A. 43 and 20
• B. 35 and 30
• C. 30 and 35
• D. 20 and 43

Hint:

Soybean is known as a high protein oilseed, with protein content running close to double its oil content.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
The question asks for the average protein percentage and oil percentage found in soybean seed, the two figures that make soybean valuable both as a protein source and as an oilseed crop.

Step 2: Key Formula or Approach:
Soybean seed composition is a standard fact taught in oilseed agronomy. On a dry seed basis, soybean carries roughly 40 to 43 percent protein, about 18 to 20 percent oil, and the remaining share as carbohydrate, fibre and ash. Protein content is always clearly higher than oil content in soybean, unlike a typical oilseed such as groundnut or mustard where oil dominates.

Step 3: Detailed Explanation:
Matching this known composition against the four options, protein near 43 percent with oil near 20 percent fits soybean exactly.
The option pairing 35 and 30 would make protein and oil almost equal, which does not match soybean, where protein is roughly double the oil content.
The option pairing 30 and 35 wrongly gives oil a higher share than protein, which is the reverse of soybean's actual composition.
The option pairing 20 and 43 flips the two figures entirely, putting oil above protein, which again contradicts the known fact that soybean is protein dominant.
So only the 43 percent protein and 20 percent oil pairing agrees with the accepted composition of soybean seed.

Step 4: Final Answer:
Soybean seed contains about 43% protein and about 20% oil. \[ \boxed{43\% \text{ protein}, 20\% \text{ oil}} \]