The part of the plant embryo that develops into the root is the: MCQ with Answer and Explanation

Explanation:
Adiponectin is an abundant protein hormone secreted by adipose tissue. Uniquely, its plasma levels are inversely correlated with body fat percentage; obese individuals have lower levels. Its primary functions are highly beneficial for metabolic health: it enhances insulin sensitivity in the liver and muscles, promotes the oxidation of fatty acids (reducing fat accumulation), inhibits glucose production by the liver, and has potent anti-inflammatory and anti-atherogenic effects on the blood vessels. Low levels of adiponectin are associated with insulin resistance, type 2 diabetes, and cardiovascular disease.

Explanation:
Gel electrophoresis, especially agarose gel electrophoresis, separates DNA, RNA, or protein fragments based on size and charge under an electric field. Smaller fragments move faster through the gel matrix. Centrifugation separates by density, chromatography by differential partitioning, spectrophotometry measures light absorption. Electrophoresis is a fundamental tool in molecular biology.

Explanation:
The counter-current mechanism involves the Loop of Henle and the vasa recta (blood capillaries surrounding the loop). The flow of filtrate in the two limbs of the Loop of Henle is in opposite directions, and the flow of blood in the two limbs of vasa recta is also counter-current. This mechanism helps maintain a high osmolarity gradient in the medullary interstitium, essential for concentrating urine.