Fsc Part 2 Online Preparation for Biology Chapter 17 (Coordination and Control)

Question # 1

What is chlorosis? How it is caused/

Ans 1: Yellowing of plant leaves due to deficiency of chlorophyll is called chlorosis it is caused due to the deficiency of magnesium.

Question # 2

What is cushing's disease? Give its symptoms.

Ans 1: In cushing's disease too much cortical hormones are produced. Symptoms include an excessive protein breakdown resulting muscular and bone weakness.

Question # 3

Give role of human gut as endocrine tissue.

Ans 1: Human gut act as endocrine gland. Important hormones produced by gut are Gastrin: This hormone is produced by mucosa of pyloric region of the stomach. It stimulates the production of gastric juice. It produced under the influence of protein in the food.
Ans 2: Secretin: It produced from the duodenum when the acidic food from the stomach touches its lining. Affect the pancreas to produce and secrete pancreatic juice and also affect rate of bile production in the liver.

Question # 4

What is leutinnizing hormone(LH). Write its role

Ans 1: LH works with FSH to stimulate oestrogen secretion and rupture mature follicles to release ovum. It also causes leutinization of follicle after ovulation and along with prolactin maintains corpus leuteum.

Question # 5

What are the functions of oxytocin hormone?

Ans 1: It cause distention of cervix,its primary function is on smooth muscles,particularly on uterus during child birth and also cause milk ejection.

Question # 6

Compare sympathetic nervous system with parasympthetic nervous system.

Ans 1: Parasympathetic nervous system A few cranial nerves including the vagus nerve together with the fibre from bottom portion of spinal cord from PNS.it promotes all the internal responses which are associated with the relaxed state i.e,contraction of pupil,promotes food digestion and retards heart beat.
Ans 2: Sympthethic nervous system Most ganglion fibers of the sympathetic nervous system arise from the middle portion of the spinal cord and almost terminate in ganglia that lie near the cord.This system is important during emergency situation and associated with fight or flight.This system accelerates the heart beat and dilates the pupil and inhibits the digestion of food etc.

Question # 7

Define biorhythms and gives its types.

Ans 1: In living organisms the behavioral activities occur at regular intervals which are called biorhythms.
1. Circannual rhythms (365 days)
2. Diurnal rhythms (24 hours)

Question # 8

Sketch and label sensory neuron.

Ans 1: Differentiate between axons and dendrites.
Ans 2: Dendrite It is cytoplasmic fiber of neuron which is smaller in size but many in number and conduct nerve impluse towards cell body.
Ans 3: Axon It is cytoplasmic fiber of neuron which is very long in size and one in number and conduct nerve impulse away from cell body.

Question # 9

Differentiate between resting membrane potential and active membrane potential.

Ans 1: Resting membrane potential A typical neuron at rest is more positive outside than inside the cell membrane.This net difference in charge between the inner and outer surface of a non-conducting neuron is called resting membrane potential.
Ans 2: Active membrane potential In active membrane potential inner membrane surface become more positive than outside.it is from of impulse.This change is so brief that only a portion of it is in active membrane potential.

Question # 10

Differentiate between kineses and taxes.

Ans 1: Kineses: kineses is a behavior in which an organism changes the speed of random movement which helps them to survive in the environment.
Ans 2: Taxes: in contrast to kineses a taxis is a directed movement either towards or away from a stimulus.

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Fsc Part 2 Online Preparation for Biology Chapter 17 (Coordination and Control)

Online Short Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

Biology - 12th Class Biology Chapter 17 Short Questions Preparation

What is chlorosis? How it is caused/

What is cushing's disease? Give its symptoms.

Give role of human gut as endocrine tissue.

What is leutinnizing hormone(LH). Write its role

What are the functions of oxytocin hormone?

Compare sympathetic nervous system with parasympthetic nervous system.

Define biorhythms and gives its types.

Sketch and label sensory neuron.

Differentiate between resting membrane potential and active membrane potential.

Differentiate between kineses and taxes.

Prepare Complete Set Wise Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

12th Class Biology Chapter 17 Short Questions Preparation - Set 1

What is chlorosis? How it is caused/

What is cushing's disease? Give its symptoms.

Give role of human gut as endocrine tissue.

What is leutinnizing hormone(LH). Write its role

What are the functions of oxytocin hormone?

Compare sympathetic nervous system with parasympthetic nervous system.

Define biorhythms and gives its types.

Sketch and label sensory neuron.

Differentiate between resting membrane potential and active membrane potential.

Differentiate between kineses and taxes.

12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Give two commercial application of ethane.

Define synapse.

What is meant by resting membrane potential?

What is leutinnizing hormone(LH). Write its role

Define latent learning.

Differentiate between nerves and ganglia.

Give two characteristics of hormones.

What is chlorosis? How it is caused/

Write four similarities of nervous and chemical coordination.

What is cerebrospinal fluid?Give its function.

12th Class Biology Chapter 17 Short Questions Preparation - Set 3

What do you Know about saltatory nerve?

What are the commercial applications of cytokinins?

How brain is protected with various covers?

Define Nissl's Granules.

What is chlorosis? How it is caused/

Sketch and label sensory neuron.

Name various structural that protect our brain.

What are the function of parathyroid glands? Or What are two functions of parathyroid gland?

What are neurotransmitters?Give it example.

Differentiate between CNS and PNS

12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Give the name of structural components of limbic system.

Give the functions of androgens.

Differentiate between CNS and PNS

What is sodium potassium pump?

Define reflex arc and give its components.

Name hormones secreted by Islets of langerhans and their role.

Give role of human gut as endocrine tissue.

Name hormones released by adrenal gland.

Define habituation. Give its example.

What are the functions of oxytocin hormone?

12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Define biorhythms and gives its types.

What is chlorosis?

Differentitae between reflex arc and reflex action.

Differentiate between nerves and ganglia.

What are meissner's corpuscles?

Define habituation. Give its example.

What is reflex action?