Showing posts with label AIPMT. Show all posts
Showing posts with label AIPMT. Show all posts

Sunday 15 April 2018

Class 11/12 - Biology - Classification of Plants (#cbsenotes)(#eduvictors)

Biology - Classification of Plants - Herbs, Shrubs and Trees and Other Types

Class 11/12 - Biology - Classification of Plants (#cbsenotes)(#eduvictors)

Q1: Based on habit i.e. Based on height, duration and nature of stem, how plants are classified?

Answer:
Herbs
Shrubs
Trees


Q2: On the basis of On the basis of flowering frequency, how plants are classified?

Answer:
Monocarpic - These plants flower and fruit only once in their lifetim
Polycarpic - These plants bear flowers and fruits repeatedly.


Q3: On the basis of life span, how plants are classified?

Answer:

Annuals
Biennials
Perennials


Thursday 5 April 2018

CBSE Class 12 / AIPMT / NEET - Biology MCQs

Class 12 / AIPMT / NEET - Biology MCQs 

CBSE Class 12 / AIPMT / NEET - Biology MCQs


Multiple Choice Questions


Q1: Which of the following is a ‘club moss’ ?

(a) Selaginella
(b) Equisetum
(c) Lycopodium
(d) None of these


Q2: The morphological nature of rhizophore of Selaginella is _______

(a) Root like
(b) Stem like
(c) Both root and stem like
(d) Rhizoid like


Q3: Pinus is a _____

(a) Tree
(b) Shrub
(c) Herb 
(d) None of these

Wednesday 28 March 2018

CBSE Class 11 - Biology - The Living World - Taxonomical Aids (#eduvictors)(#cbsenotes)

Biology - The Living World - Taxonomical Aids


Q1: What are Taxonomical Aids?

Answer: These are articles helpful in correct identification & classification of organisms are called taxonomical aids.


Q2: What is a Herbarium?

Answer:
1. The storehouse of collected plant specimens that are dried, pressed & preserved on sheets.
2. Sheets are arranged according to a universally accepted classification system.
3. Used as a ready reference in scientific studies.

Tuesday 19 December 2017

CBSE Class 12/Class 11/Class 9 - DISCOVERIES IN ATOMIC STRUCTURE (#eduvictors)(#cbsenotes)

DISCOVERIES IN ATOMIC STRUCTURE

CBSE Class 12/Class 11/Class 9 - DISCOVERIES IN ATOMIC STRUCTURE (#eduvictors)(#cbsenotes)

1. Dalton(1803) : Proposed Atomic Theory

2. Julius Plucker (1859) : First discoverer of cathode rays

3. Goldstein(1886) : Discovered anode rays and proton

4. Sir.J.J.Thomson(1897) : Discovered electron and determined charge/mass(e/m) ratio for electron

5. Rutherford(1891) : Discovered nucleus and proposed atomic model

Wednesday 22 November 2017

Class 12 - Biology - Human Reproduction System - Very Short Questions and Answers (#cbseNotes)(#eduvictors)

Human Reproduction System - Very Short Questions and Answers

Class 12 - Biology - Human Reproduction System - Very Short Questions and Answers (#cbseNotes)(#eduvictors)

Q1: Define menarche.

Answer:  A female's first menstrual period. It is marked by the maturation of ovaries.


Q2: Which female reproductive system that regulates the condition of the endometrium?

Answer: progesterone.


Q3: What is amenorrhea?

Answer: It is failure to menstruate.


Q4: What is erythroblastosis?

Answer: It is a disease that occurs when the infant’s blood and the mother’s blood are incompatible. It is due to RH factor incompatibility.


Sunday 17 September 2017

CBSE Class 10 - Biology - - Arteries vs Veins (#cbseNotes)

Biology - Arteries vs Veins

Areteries vs Veins
credits: Kelvinsong (Wikimedia) under CC-BY-SA-3.0


Arteries and Veins are parts of closed circulatory system and both carry blood. Here follows the differences between the two:


Wednesday 23 August 2017

CBSE Class 12 - Biology - Human Nutrition (Worksheet) (#cbseNotes)

Human Nutrition (Worksheet)

CBSE Class 12 - Biology - Human Nutrition (Worksheet) (#cbseNotes)
Digestive System
By Mariana Ruiz Villarreal(LadyofHats) (Own work)
[Public domain], via Wikimedia Commons

Fill in the blanks


1. ______________ is a hormone released by the mucosa of duodenum.


2. The process by which the complex food materials are changed to simple molecules is called _______.


3. Trypsinogen in the presence of __________ enzyme breaks into Trypsin + Inactive dipeptides.


4. Bile salts with the help of _________ emulsify fats.


Sunday 20 August 2017

Class 9 - Biology - Tissues - 15 Amazing Facts About Blood That You Should Know (#cbseNotes)

15 Amazing Facts About Blood
That You Should Know

Class 9 - Biology - Tissues - 15 Amazing Facts About Blood That You Should Know (#cbseNotes)

Human heart pumps the blood 36 thousand liters of blood in the distance of 20 thousand kilometers in a day.

Blood is a fluid connective tissue.

Human blood is red in colour due to the presence of red pigment i.e. haemoglobin.





The blood is always not red in all animals. The cockroach has white blood where as there is blue coloured blood in a snail.

Saturday 12 August 2017

CBSE Class 12 - Chemistry - Chapter 2 - Solutions (Important Points) (#cbseNotes)

Solutions - Important Points

Class 12 - Chemistry - Chapter 2
CBSE Class 12 - Chemistry - Chapter 2 - Solutions (Important Points) (#cbseNotes)



1. A solution is a homogeneous mixture of two or more substances.

2. Solutions are classified as solid, liquid and gaseous solutions.

3. The component that is having more number of moles is known as solvent.

4. Solvent determines the physical state of the solution.

5. Water is an universal solvent.

6. The concentration of a solution is expressed in terms of
- mole fraction,
- molarity,
- molality and
- in percentages.

Wednesday 19 July 2017

CBSE Class 11 - Physics - Gravitation - Kepler's Laws (#cbseNotes)

Kepler's Laws

Class 11 - Physics - Gravitation 
CBSE Class 11 - Physics - Gravitation - Kepler's Laws (#cbseNotes)


Kepler's Laws


There has always been a great interest in the motion of planets. Part of the reason is that some people believe that it changed the course of science and laid foundation to Newtonian Laws. By 16th century, a lot of data on the motion of planets had been collected by many astronomers. Based on that data Johannes Kepler, after a life time study, worked out three empirical laws which govern the motion of planets and are known as Kepler's laws of planetary motion.

The laws for planets orbiting the sun, they hold equally well for satellites, either natural or artificial, orbiting Earth or any other massive central body.

The three laws are:

The law of orbits
Law of areas
Law of periods

Saturday 15 July 2017

CBSE Class 11 / 9 - Physics - Gravitation - Understanding Mass and Weight (#cbseNotes)

Understanding Mass and Weight

Physics - Gravitation

CBSE Class 11 / 9 -  Physics - Gravitation - Understanding Mass and Weight (#cbseNotes)

Mass and Weight
The quantity of matter in a body is known as mass of the body. Mass is quantitative measure of inertia. Mass is an intrinsic property of matter and does not change as an object is moved from one location to another. Weight, in contrast, is the gravitational force that earth exerts on the object and can vary, depending on how far the object is above the earth's surface or whether it is located near another body such as the moon. The relation between weight W and mass m can be written in one of two ways:

W = GMₑm / r²
W = mg

According to the Newton's second law,
Force = mass ✕ acceleration

or mass = force / acceleration

Mass is of two types :
i) Inertial mass

ii) Gravitational mass


1. Inertial Mass:
Ratio of the applied external force and the acceleration produced in the body is known as inertial mass,

mi = External force applied / Acceleration produced.

Friday 23 June 2017

CBSE Class 11 / NEET/ PMT - Biology - Ch 7 - Animal Tissues - Part 1 (Very Short Question and Answers) (#cbseNotes)

Animal Tissues (Part-1)

Very Short Q & A 

CBSE Class 11 / NEET/ PMT - Biology - Ch 7 - Animal Tissues - Part 1 (Very Short Question and Answers) (#cbseNotes)

Q1: Define tissue?

Answer: A group of cells similar in structure, function and origin.


Q2: Can cells in a tissue be dissimilar in structure or function?

Answer: Yes the tissue cells can be dissimilar in structure and function but they are always similar in origin.


Q3: Who coined the word 'animal tissue'?

Answer: Bichat

😇 Note:
Marie François Xavier Bichat, a french anatomist. He is also known as father of histology. Unfortunately he died very young at the age of 30.





Thursday 27 April 2017

CBSE Class 11/12, AIPMT/NEET - Biology - List of Important Proteins and Their Occurrence (#cbsenotes)(#biologynotes)

List of Important Proteins and Their Occurrence



Protein Found Where
Albumin Egg White, Milk, Blood Plasma
Actin Muscle Fibres (Contractile protein)
Collagen Tendon, Bones
Casein Milk, Egg Yolk
Keratin Hair, Horn, feathers, Nail
Cytochrome Mitochondria
Elastin Arteries, Ligaments,Yellow Fibres

Tuesday 25 April 2017

CBSE NEET/AIPMT Class 12 Biology - Animal Nutrition and Digestive System (MCQs) (#cbsenotes)

Animal Nutrition and Digestive System 

(Biology MCQs) For NEET, Pre-Medical and AIPMT  

CBSE NEET/AIPMT Class 12 Biology - Animal Nutrition and Digestive System (MCQs) (#cbsenotes)


Q1 (AIPMT 2014): An alga which can be employed as food for human being is _______.

(a) Ulothrix
(b) Spirogyra
(c) Chlorella
(d) Polysiphonia


Q2: Carrier ions like Na⁺ facilitate the absorption of which of the following substances:

(a) glucouse and fatty acids
(b) amino acids and glucouse
(c) glycerol and fatty acids
(d) fructose and some amino acids


Q3: Which of the following food components reach totally undigested in human stomach?

(a) Protein and Starch
(b) Starch and Fat
(c) Fat and Cellulose
(d) Starch and Cellulose

Monday 10 April 2017

Biology - Famous Indian Biologists (AIPMT/NEET/NTSE) (#ntse)(#neet)

Famous Indian Biologists

 Biology - Famous Indian Biologists (AIPMT/NEET/NTSE) (#ntse)(#neet)


Father Of India Bryology (Bryphytes) : Shiv Ram Kashyap

Discovered recurrent annual wheat rust on Indian Plants : K C Mehta

Father of Indian Palynology : P K Nair

Father of Indian Ecology : Ram Deo Mishra

Father of Indian Plant Embryology : Panchanan Maheshwari

Father of Indian Paleobotany : Birbal Sahani

Father of Indian Plant genetics : B P Pal

Sunday 2 April 2017

CBSE Class 12 - Biology - Chapter - Genetics (MCQs for AIPMT/NEET) (#cbsenotes)

Genetics 

CBSE Class 12 - Biology - Chapter - Genetics (MCQs for AIPMT/NEET) (#cbsenotes)

CBSE Class 12 - Biology - 
(MCQs for AIPMT/NEET)


Q1: Removal of introns and joining the exons in a defined order in a transcription unit is called

(a) Splicing
(b) tailing
(c) transformation
(d) capping


Q2: Klinefelter’s syndrome is indicated by an XXY sex chromosome combination. This abnormality is due to:

(a) gene deletion.
(b) gene duplication.
(c) gene translocation.
(d) non-disjunction.


Q3: Molecular basis of organ differentiation relies on modulation in transcription by

(a) RBA polymerase
(b) ribosome
(c) anticodon
(d) transcription factor

Thursday 23 March 2017

CBSE Class 11/12 - Biology - Environmental Biology (MCQs for AIPMT/NEET)

Environmental Biology 

CBSE Class 11/12 - Biology - Environmental Biology  (MCQs for AIPMT/NEET)

(MCQs for AIPMT/NEET)

Q1: Green-house effect is warming due to

a) infra-red rays reaching the earth
b) moisture layer in atmosphere
c) increase in temperature due to increase in carbon dioxide concentration of atmosphere
d) ozone layer of atmosphere


Q2: The relation between algae and fungi in a lichen is 

a) symbiosis
b) parasitism
c) commensalism
d) protocooperation


Q3: Major aerosol pollutant in jet plane emission is

a) Sulphur dioxide
b) carbon monoxide
c) methane
d) chlorofluoro-carbons

Monday 20 February 2017

CBSE Class 11/12/NEET/AIPMT Plants Of Interests Having Specific Features (#neet)(class11biology)(#biologyquiz)(#cbsenotes)

Plants Of Interests Having Specific Features

CBSE Class 11/12/NEET/AIPMT Plants Of Interests Having Specific Features (#neet)(class11biology)(#biologyquiz)(#cbsenotes)
Plants Of Special Interests
(image credits: wikipedia)

Very Short Q & A


Q1: Name the largest Angiosperm.

Answer: Eucalyptus sps.


Q2: Name the smallest Angiosperm.

Answer: Lemma


Q3: Name the Largest seed.

Answer: Lodoicea


Q4: Which plant has the largest leaf?

Answer: Victoria amazonica


Q5: Name the biggest orchid.

Answer: Grammato phyllum speciosum


Sunday 4 December 2016

CBSE Class 11/AIPMT - Plant Nutrition (MCQs)

Plant Nutrition

Biology Quiz
CBSE Class 11/AIPMT - Plant Nutrition (MCQs)
Azolla - an aquatic fern has Nitrogen Fixing capability

MCQs for AIPMT/CEET/Pre Medical


Q1: Nitrifying bacteria converts

(a) atmospheric nitrogen into soluble forms
(b) convert ammonia to nitrate
(c) ammonia to nitrogen
(d) nitrate to nitrogen.


Q2: Amino acids are mostly synthesized from

(a) mineral acids
(b) fatty acids
(c) volatile acids
(d) alpha-ketoglutaric acid


Q3: Which of the following is a micro-nutrient for plants?

(a) Pottassium
(b) Iron
(c) Iodine
(d) Zinc


Q4: If a plant’s younger leaves are yellowing but older one remains green, what could be the most probable cause of plant’s blight?

(a) Improper sunlight
(b) Lack of nitrogen fixing bacteria in soil
(c) Deficiency of immobile mineral nutrient
(d) Deficiency of mobile mineral nutrient


Q5: Enzyme involved in nitrogen assimilation is ___________.

Saturday 19 November 2016

CBSE Class 11/ Class 12/ NEET - Biology - Kingdom Fungi (MCQs)

Kingdom Fungi 

CBSE Class 11/ Class 12/ NEET - Biology - Kingdom Fungi (MCQs)
Fungus, Mushroom
credits: Copyright Pam Brophy

MCQs for AIPMT, PreMedical, NEET


Q1: Black rust of wheat is caused by ________

(a) Puccinia
(b) Mucor
(c) Aspergillus
(d) Rhizopus


Q2: Adhesive pad of fungi enters into the host with the help of

(a) mechanical pressure and enzymes
(b) hooks and suckers
(c) softening by enzymes
(d) only by mechanical pressure


Q3: Which fungal disease spreads by seed and flowers?

(a) Corn stunt
(b) Loose smut of wheat
(c) Covered smut of barely
(d) Soft rot of potato


Q4: Zygospores are formed in

(a) Puccinia
(b) Penicillium
(c) Alternaria
(d) Rhizopus.