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NEET Biology: Metabolism And Body Weight

NEET Biology: Metabolism And Body Weight

Edited By Irshad Anwar | Updated on Nov 05, 2024 05:03 PM IST | #NEET

Perhaps you can eat whatever you want without putting on weight, or perhaps you know someone who has this mysterious capability, but either way, we have heard of those who never need to worry about what type of food they eat. In this image-obsessed society, this capability is generally an advantage, but for those who are light-weighted, this boon can feel more like a curse. According to conventional wisdom, eating loads of calories should make an individual gain weight, thus it can be confusing as well as frustrating if you want to put on some pounds but can’t obtain results regardless of consuming lots of food. Before we attack this problem, let’s start with the basics. What can you do about it? To find out, don’t take your eyes off and keep reading as Careers360 explains.

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NEET Biology: Metabolism And Body Weight
NEET Biology: Metabolism And Body Weight

Still, there’s presumably a reason for it, if the body seems to disobey the laws of thermodynamics by burning calories without losing weight. The answer to this question is quite complex as several factors are at play; be it nutrition, genetics, or behavioral factors. Actually, there are numerous factors that usually cause this effect. Factors affecting this effect are given below: -

Role of Genetics

Genetics plays a part in managing body weight as it influences hormone sensitivity and metabolic rate which allows burning calories faster in some people than others. Also, it makes them less sensitive to food cues and thus resists cravings.

In contrast to this, Dr. Ines Barroso – a researcher at the University of Cambridge in England – says that there is no evidence that some people are born to burn more energy than others. In contrast to this, researchers have identified more than 250 distinct regions linked with obesity. In the study published in PLOS Genetics in the year 2019, thin participants were found to have some of the genes linked with obesity.

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Metabolism

Probably, you have heard the term “metabolism” before, but you might not be familiar with the term BMR or basal metabolic rate. BMR is the rate of minimum energy expenditure to maintain life processes; in other words, it is the number of calories you need to burn to derive energy when you are at rest. This rate differs from person to person, based on several factors that include diet, genetics, and activity level. If you eat loads of food but never gain weight, there is a possibility that your BMR is high. In other words, some people need more energy to do the same task or even during rest and thus burn more calories and eventually need more calories through food.

Leptin Sensitivity

Leptin is a starvation hormone that regulates appetite. People who have a higher sensitivity to leptin hormone control the craving better. The body doesn’t respond to the brain signal in the absence of leptin and can cause weight gain due to uncontrolled feeding. So, people with leptin deficiency can gain weight.

Food Choices and frequency

It may feel like “eating a lot” is the only reason to gain some pounds but choices of food you eat also matter as much. After all, it is calories that matter; a plate of grilled vegetables or salad does not contain as many calories as slithery sandwiches or fries. If you want to put on weight, include a few calorie-dense foods such as cheese, full cream milk, and meat.

Actually, the people who seem to eat a lot in front of you eat as much as you do. It might be possible for those people to compensate for it later by having a little meal or only one or two meals in a day. It means their consumed calories per day remain the same as yours.

Physical Activity

You burn more calories during physical activity such as daily routine activity or while working out. An individual who works out regularly burns more calories even at rest than those who don’t exercise or work out; thus having an effect on your weight. However, fat storage in some conditions is appropriate such as in lactation, pregnancy, growth, and development. Otherwise, it is not desirable.

The same amount of ENERGY IN (calories consumed) and ENERGY OUT (calories burned) over time = weight stays the same = energy balance at equilibrium

More Intake than expenditure over time = weight gain

More expenditure than Intake over time = weight loss

The Set-Point

The brain and the body have a set point or defended position of weight according to research published in the "International Journal of Obesity Supplements" in the year 2016. The neural system of an individual tries to maintain this set point. Environmental factors, genetic factors, and diet could be blamed to have an impact on set point which is adaptable to some degree.

Sleep

Sleep deprivation stimulates the hormone cortisol which plays an important part in regulating hunger and results in weight gain. So, a sound sleep of 7-8 hours is a must to maintain weight.

Malabsorption

It is a condition in which a person is unable to absorb the nutrients and calories effectively from the consumed food. This issue is found common in those individuals who have digestive ails such as celiac complaints or cystic fibrosis and lactose intolerance. This issue could be blamed for not gaining weight.

How to gain weight

There are many points that you should keep in mind while trying to gain weight. Desserts and junk food contain a lot of calories and can help you to increase your weight but this gained weight would be unhealthy visceral fat that might leave you worse off. So, gaining weight is not always healthy. Any fat gain should be balanced with muscle mass by limiting the rate of gaining weight and consuming more protein in your diet.

You can increase your calories input without increasing the quantity or volume of the food. The calories can be added easily to a dish by cooking food with oils such as coconut oil or olive oil without increasing the volume by gravies or condiments.

Include calorie-thick whole grains -- whole grain chuck, cereals, or pasta -- and stiff vegetables, similar as sludge or sweet potatoes, at each mess and snack.

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Questions related to NEET

Have a question related to NEET ?

Hello,

The situation might make some problem arise while giving the marksheets before the admission committee, if you keep different names of your mother on your 10th and 12th mark sheets. Sometimes, all such documentation consistencies go very important to the concern, and they might find this as trouble for you. But does not say that your form will certainly be rejected, after all. Hence, to escape all of these complications,

Affidavit or Notarized Declaration: There could be an affidavit or a notarized declaration that these two names refer to the same person. This would enable a legal confirmation of identity.

Additional Supporting Documents: Collect all supporting documents like a passport and Aadhar card, which bear your mother's name as at least one of these two variations.

Contact the NEET Authorities: If possible, contact the authorities of NEET examinations or even check out the official guidelines so that discrepancies, if any, can be sorted out well in advance.

This helps avoid problems in the process of verification.

There is very least possibilities that Your mother's or father's Aadhar Card will be required at any step , so logically there should be no problem but sometimes they ask why there is discrepancy in names at yhe time of document verification if you have a reason then they take affidavit from you and you get admission.


Mostly 10th Marksheet is required as a date of birth proof these are very minor mistakes they will understand

At the end Your name should be correct and date of birth


Good luck..

Hi

For the NEET , the examination covers only three subjects:

Physics, Chemistry, and Biology (PCB) . NEET does not include Mathematics (M) as part of its syllabus , so the exam is designed  for students with a background in Biology along with Physics and Chemistry in 12th grade .

If you are preparing for NEET , you need to focus on PCB , as Mathematics is not  for this exam . NEET is primarily aimed at medical and dental program admissions , so the focus is on Biology instead of a broader range of subjects like PCMB .

For more information about NEET exam , you can drop message .

All the best

Hello

Here’s a important tips for cracking the NEET exam :

1. Understand the Syllabus : Familiarize yourself with the syllabus ( PCB ) .

2. Study Material : Use NCERT textbooks and reference books .

3. Create a Study Plan : Develop a structured , consistent study schedule .

4. Conceptual Clarity : Focus on concepts , specially in Physics and Chemistry  topics .

5. Practice Regularly : Solve previous years papers and give mock tests .

6. Time Management : Practice managing your time effectively during the exam .

7. Revision : Regularly revise topics and create summary notes .

8. Stay Healthy : Maintain a healthy lifestyle with good nutrition and sleep .

9. Seek Help : Ask for clarification on challenging topics and join study groups .

10. Stay Positive : Keep a positive mindset and manage stress effectively .

All the best





Hi

NEET 2025 examination , the application process is expected to begin in the 1st week of February 2025 ,  last date for submission tentatively set for the 1st week of March 2025 .

The application fee payment deadline second week of March 2025 .  there will be a correction available in March 2025 .

The NEET UG 2025 exam on 4 may, 2025 . this date is still to be officially confirmed .

All the best for your exam

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Column I ( Salivary gland)

 

Column II ( Their location)

Parotids

I

Below tongue

Sub-maxillary / sub-mandibular

Ii

Lower jaw

Sub-linguals

Iii

Cheek

Option: 1

a(i), b(ii) , c(iii)

 


Option: 2

a(ii), b(i), c(iii)

 


Option: 3

a(i), b(iii), c(ii)


Option: 4

a(iii), b(ii), c(i)


Ethyl \; ester \xrightarrow[(excess)]{CH_{3}MgBr} P

the product 'P' will be ,

Option: 1


Option: 2


Option: 3

\left ( C_{2}H_{5} \right )_{3} - C- OH


Option: 4


 

    

           

 Valve name                            

             

Function

    I   Aortic valve     A

Prevents blood from going backward from the pulmonary artery to the right ventricle.

    II   Mitral valve     B

 Prevent blood from flowing backward from the right ventricle to the right atrium.

    III   Pulmonic valve     C

 Prevents backward flow from the aorta into the left ventricle.

    IV   Tricuspid valve     D

 Prevent backward flow from the left ventricle to the left atrium.

 

Option: 1

I – A , II – B, III – C, IV – D


Option: 2

 I – B , II – C , III – A , IV – D


Option: 3

 I – C , II – D , III – A , IV – B


Option: 4

 I – D , II – A , III – B , IV – C 

 

 


Column A Column B
A

a) Organisation of cellular contents and further cell growth.  

B

b) Leads to formation of two daughter cells.

C

c) Cell grows physically and increase volume proteins,organells.

D

d)  synthesis and replication of DNA.

Match the correct option as per the process shown in the diagram. 

 

 

 

Option: 1

1-b,2-a,3-d,4-c
 


Option: 2

1-c,2-b,3-a,4-d


Option: 3

1-a,2-d,3-c,4-b

 


Option: 4

1-c,2-d,3-a,4-b


0.014 Kg of N2 gas at 27 0C is kept in a closed vessel. How much heat is required to double the rms speed of the N2 molecules?

Option: 1

3000 cal


Option: 2

2250 cal


Option: 3

2500 cal


Option: 4

3500 cal


0.16 g of dibasic acid required 25 ml of decinormal NaOH solution for complete neutralisation. The modecular weight of the acid will be

Option: 1

32


Option: 2

64


Option: 3

128


Option: 4

256


0.5 F of electricity is passed through 500 mL of copper sulphate solution. The amount of copper (in g) which can be deposited will be:

Option: 1

31.75


Option: 2

15.8


Option: 3

47.4


Option: 4

63.5


0.5 g of an organic substance was kjeldahlised and the ammonia released was neutralised by 100 ml 0.1 M HCl. Percentage of nitrogen in the compound is

Option: 1

14


Option: 2

42


Option: 3

28


Option: 4

72


0xone is

Option: 1

\mathrm{KO}_{2}


Option: 2

\mathrm{Na}_{2} \mathrm{O}_{2}


Option: 3

\mathrm{Li}_{2} \mathrm{O}


Option: 4

\mathrm{CaO}


(1) A substance  known as "Smack"

(2) Diacetylmorphine

(3) Possessing a white color

(4) Devoid of any odor

(5) Crystal compound with a bitter taste

(6) Obtained by extracting from the latex of the poppy plant

The above statements/information are correct for:

Option: 1

Morphine


Option: 2

Heroin


Option: 3

Cocaine


Option: 4

Barbiturates


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