NEET 2020 NEWS
NATIONAL LEVEL OFFLINE TEST
Physiology is the science of life. It is that branch which focuses on comprehending the mechanisms of all living organisms. Research in Physiology provides knowledge as to how the body functions pertaining to health, how it responds and takes on the challenges of everyday life.
The chapter will help you to understand what goes wrong when we are diseased, assisting in the development of new treatments and presenting guidelines for preserving the human and animal health. The functioning of the entire body that will help you to distinguish physiology from other branches of life sciences. Read the article to get simple definitions, sample questions, and preparation tips.
Digestion and Absorption- The human digestive system is regarded as an intricate system of organs and glands that process the food. The human digestive system consists of the following parts-
Question: The small intestine mainly has 3 parts, the 1st part is called
Breathing and exchange of gases- There is plenty of difference between breathing and Respiration. Breathing is merely the process of taking and giving out hair whereas on the other hand respiration refers to the process of the breakdown of the food/glucose for the release of energy during the presence of oxygen.
It is followed by what are respiratory organs, the role of diffusion in the respiratory process, the detailed explanation on the human respiratory system.
Question: The human skin cannot operate as a respiratory organ because of the following-
Body Fluids and circulation- The circulatory system is focused on the circulation of bodily fluids to distribute various substances to different body parts. The circulatory system is also known as the cardiovascular system.
This is followed by functions of the circulatory system, difference between open and close circulatory system, human heart, circulation of the human heart etc.
Question: ------- is the blood disorder wherein haemoglobin is defective.
Excretory Products and their elimination- The excretory system is a biological system that facilitates the removal of unnecessary, waste, excess substances from the body fluids of an organism to preserve the internal chemical balance and curb any damage to the body. The excretory system consists of two kidneys, two ureters, one urinary bladder and a urethra.
Followed by the detailed discussion on the different parts of the excretory system and urine formation.
Question: Bowman Capsule is located in --------.
Locomotion and Movement- Locomotion can be defined as the ability to move from one location to another. Example- walking, running, crawling, jumping etc. on the other hand movement can be defined as a voluntary or involuntary action and not merely the transfer of a cell from one place to another.
This is followed by locomotor movements, types of movements, types of muscles, skeletal muscles.
Question: Which of the following is correct?
Neural Control and Coordination- The nervous system is regarded as a very vital component of the human body, supervising both voluntary and involuntary actions of the body.
Followed by nerve impulse, detailed structure of the brain, what are neurons/nerve cells etc.
Question: Wernicke’s area is associated with?
Chemical control and coordination- The endocrine system comprises mainly of duct glands that give out chemical messengers called hormones that circulate via the blood stream to reach to different organs. Glands that secrete hormones initially into one’s blood stream are further termed as endocrine glands.
Followed by classification of hormones, hypothalamus, pineal gland, thyroid gland etc.
Question: Endocrine glands produce --------.
As far as experts are concerned, all the subtopics are important, however some are should be given more importance than the others like-
Transportation in plants is a complex process which involves the transport of all nutrients and water to all parts of the plant for survival. When it comes to plants a major concern is the transport of water and how it becomes a limiting factor pertaining to the growth of the plant. To bring the same under control, the tree makes use of several other processes like translocation, storing, absorption and utilization of water.
It occurs in 3 main levels-
Question: Which of the following is not a feature of the process of facilitated transportation in plants –
Answer: 2; being non selective in nature is not held to be a characteristic of the facilitated transportation in plants.
Nutrients are characterized into two divisions-
Question: Which of the elements below are not essential for the plant in the process of a normal, healthy growth?
Answer: 2; as it is toxic even in smaller concentrations
Photosynthesis can be defined as the process via which plants absorb the energy from the sunlight, use that to convert carbon dioxide and water into molecules which accelerate the procedure of growth. These converted molecules comprise of enzymes, sugars and chlorophyll. This chlorophyll further helps to absorb the light energy.
Mentioned below is the light equation-
Question: Which of the following is correct for photosynthesis?
Plant respiration is mostly a chemical reaction with the help of which plants respire, in other words, stay live. The equation for the same would be Glucose + Oxygen -------- Carbon Dioxide+ Water + Energy
Respiration can be categorised as –
Types of respiration-
Reaction of the process of respiration is as follows-
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
Question: Fill in the blanks-
-------- is a product of unaerobic respiration.
Plant- Growth and Development- Growth is the most primary characteristic of a living organisms and is followed by the several metabolic processes powered by energy. These processes can be catabolic or anabolic. In case of a plant, first it develops into a seedling, then gradually becomes an adult plant over the years. Plants display indefinite growth.
This is followed by characteristics of growth, experiment to study the different stages of growth or types of growth.
Question: ------ tissues synthesize natural cytokinins.
Question 1: Leaf fall occurs when content of ----------
Answer- b, auxin plays an important role in the detachment of leaves and flowers, so as long as young leaves and flowers produce auxin they remain connected to the stem.
Question 2: The opening of the flower and the drooping of the bud are?
Answer- b; epinasty is a movement in which the plant part (leaves, flower petal) is bent downwards and sometimes outward.
Question 3: The internal lining of trachea is made up of ---------
Question 4: When the sympathetic nerve gets activates which hormone does it release?
Question 5: Which of the mentioned below is the largest cranial nerve?
Best of Luck to all the aspirants for the upcoming NEET 2020 examination!