Question

State the functions of the following.

#Plant hormones.
#Periphereral nervous system.
#Central nervous system.
#Gibberellin.
#Hind-brain.
#Medulla oblongata.
#Spinal cord.
#Cerebellum.
#Nervous tissue.​

Answer 1

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Functions of :

Plant hormones

Plant hormones as signal molecules regulate cellular processes in targeted cells locally and when moved to other locations of the plant. They also determine the formation of the root, stem, leaf, and flower and facilitate the shedding of leaves and the development and ripening of fruits.

Peripheral nervous system

The peripheral nervous system (PNS) is the division of the nervous system containing all the nerves that lie outside of the central nervous system (CNS). The primary role of the PNS is to connect the CNS to the organs, limbs, and skin.

Central nervous system

The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.

Gibberellin

Gibberellins (GAs) are plant hormones that are essential for many developmental processes in plants, including seed germination, stem elongation, leaf expansion, trichome development, pollen maturation and the induction of flowering (Achard and Genschik, 2009).

Hind brain

The brainstem is one of the most important parts of the entire central nervous system, because it connects the brain to the spinal cord and coordinates many vital functions, such as breathing and heartbeat.

Medulla oblongata

Medulla oblongata is located at the base of your brain, where the brain stem connects the brain to your spinal cord. It plays an essential role in passing messages between your spinal cord and brain. It's also essential for regulating your cardiovascular and respiratory systems.

Spinal cord

The brain and spinal cord are your body's central nervous system. The brain is the command center for your body, and the spinal cord is the pathway for messages sent by the brain to the body and from the body to the brain.

Cerebellum

Major function of the cerebellum is to coordinate the timing and force of these different muscle groups to produce fluid limb or body movements. Motor learning. The cerebellum is important for motor learning.

Nervous Tissue

Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. It stimulates muscle contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning.

Answer 2

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$\bf\huge\underline{✯Plant \:hormones}$

Ans:- Some of the function performed by plant hormones are :

• Cell elongation and cell enlargement.
• Germination of seeds.
• Breaking dormancy of seeds.
• Growth of roots, stem and leaves.
• Flowering of plants.
• Ripening of fruits.

$\bf\huge\underline{✯Peripheral \:nervous \:system}$

Ans:- Peripheral nervous system consisting of cranial nerves and spinal nerves ficilitates communication between the central nervous system and different parts of the body.

$\bf\huge\underline{✯Central \:nervous \:system}$

Ans:- The primary function of central nervous system consisting of the brain and spinal cord is to recieve information from all parts of the body and to integrate it.

$\bf\huge\underline{✯Gibberellin}$

Ans:- Gibberellin is a plant harmone which help in the growth of the stem.

$\bf\huge\underline{✯Hind-brain}$

Ans:- The hind-brain along with mid-brain controls all involuntary actions of the body other than reflex action.

$\bf\huge\underline{✯Medulla \:oblongata}$

Ans:- Medulla oblongata in the hind-brain controls involuntary actions such as blood pressure, salivation and vomiting.

$\bf\huge\underline{✯Spinal \:cord}$

Ans:- The functions of spinal cord are—

• Recieves information from all parts of the body and transmits it to the brain ti think about it.
• Control reflex action.

$\bf\huge\underline{✯Cerebellum}$

Ans:- Cerebellum is a part of the hind brain. Its main function include:

• Maintaining the posture and balance of the body.
• Brining about precision in voluntary actions.

$\bf\huge\underline{✯Nervous \:tissue}$

Ans:- The main function of nervous tissue are:

• Collection of information from the receptor.
• Conveying information to the central nervous system.
• Conveying information to the muscle cells or glands for action.