Category: 4. Patwari (HP), JBT (HP)

Even without movement, the body keeps respiring mainly to support A Skin colour change B Bone length increase C Hair

Why do organisms need to respire even when they are resting quietly A To store food B To make vitamins

A student says “bile digests fat like enzymes do”; the best correction is that bile mainly A Digests protein chains

In a person who eats very fast without chewing well, digestion becomes harder mainly because A Less stomach acid B

In humans, the organ that pushes food down by muscular waves after swallowing is the A Trachea B Liver C

When a mosquito takes blood using a tube-like mouthpart, this feeding is best called A Chewing food B Tearing flesh

In most animals, the first step of nutrition is called A Absorption B Assimilation C Ingestion D Egestion Explanation Nutrition

In a destarched plant, if the covered part of a leaf still turns blue-black after iodine test, the most logical

In the leaf “destarching” step, keeping a plant in darkness for 24–48 hours is done mainly to A Increase leaf

During the starch test, why is a leaf first boiled in water before alcohol treatment in the lab setup A