Question

Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of

• A. Blood cells
• B. Skin surface
• C. Nerve cells
• D. Nucleus of cells

Answer 1

The correct option is C

Nerve cells

The correct option is C.
Explanation for the correct option:
Option C:

1. When Paheli touches the flame with her hand, heat impulses move from the nerve cells in her hand to the neurons in her arm and finally to the brain.
2. After receiving these impulses, the brain produces a response signal, which causes Paheli to jerk her hand away from the flame.
3. In order for the signal to reach the brain, electrical charges are actually transferred from one neuron to the next.
4. A type of cell called a nerve cell is responsible for receiving and transmitting signals from the body to the brain and back again.
5. A modest electrical current is used to transmit the messages. known as a neuron as well.

Explanations for the incorrect options:
Option A:

1. Plasma is a fluid-suspended tissue that contains red blood cells, white blood cells, platelets, and other components.
2. Blood transports waste away and delivers nutrients and oxygen to the tissues.
3. Because the heat has killed your skin cells, getting burned hurts.
4. Minor burns heal similarly to how cuts do.
5. Frequently, a blister develops and covers the wound.
6. White blood cells penetrate beneath it to combat the infection, and fresh skin emerges from the burn's edges.

Option B:

1. Skin or skin surface refers to the comparatively thick layer that lies on top of the cellular foam.
2. This layer forms as a result of manufacturing-related heat exposure and/or contact with a mold.
3. The burned skin may be red and swollen after a burn injury.
4. As the skin ages, this redness gradually lessens and fades.

Option D:

1. In terms of genomics, a nucleus is an organelle within a cell that is membrane-enclosed and houses the chromosomes.
2. The nucleus carries the genes, and structures that hold the genetic information, and controls and regulates the functions of the cell (such as growth and metabolism).

Final answer: Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of nerve cells.