Explanation

Curd is a classic example of a gel in colloid chemistry,

It is formed by the coagulation of proteins.

Structure: Solid protein network (casein) trapping liquid whey.

Similar Examples: Cheese, jelly, butter, and gelatin

Explanation

They have the general formula R−O−R′,

Where R and R′ represent the organyl groups.

Additional information

• R-CO-R: Ketones
• R-OH: Alcohols
• R-CHO: Aldehydes

Last updated question 17-02-2026

Explanation

Active transport is a critical process in the nephron used to reabsorb solutes against their concentration gradients

Proximal Tubule:

This is the primary site of active transport, where approximately 65–70% of filtered sodium is reabsorbed via the Na⁺/K⁺-ATPase pump.

It also uses secondary active transport to reabsorb 100% of filtered glucose and amino acids.

Last updated question 17-02-2026

Explanation

•  Mammary glands are modified sweat glands.
•  They produce milk for offspring.
•  Structurally, they retain sweat gland features.
•  They are present in mammals only.
•  Hormones regulate their secretion.

Last updated question 17-02-2026

Explanation

 Sodium is most heavily reabsorbed in the proximal tubule of the kidney,

Accounts for approximately 65% to 70% of the total filtered sodium. 

Last updated question 17-02-2026

Explanation

•  The lateral line detects water movements.
•  It helps fish sense predators and prey.
•  It consists of mechanoreceptors called neuromasts.
•  It runs along the sides of the body.
•  It is essential for navigation in water.

Last updated question 17-02-2026

Explanation

Taiga, also called boreal forest, occurs in high northern latitudes.

Characterized by long, cold winters and short, mild summers.

Snow cover persists for much of the year.

Dominated by coniferous trees like pine, spruce, and fir.

Adapted for cold climate with needle-like leaves and conical shape to shed snow.

Explanation

The dependent variable is the factor that is measured or observed as a response to changes made by the experimenter.

In this specific experiment, the scientist is investigating how salt affects plant life

Therefore, the number of plants is the measured outcome that "depends" on the salinity levels.

Explanation

Explanation