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

Tuesday, 5 November 2019

CBSE Class 12/NTSE/ - Chemistry - Functions of Catalysts (#class12Chemistry)(AIPMT)(#eduvictors)

Chemistry - Functions of Catalysts

CBSE Class 12/NTSE/ - Chemistry - Functions of Catalysts (#class12Chemistry)(AIPMT)(#eduvictors)

Catalyst, in chemistry, any substance that increases or decreases the rate of a reaction without itself being consumed. Enzymes are bio catalysts i.e. naturally occurring catalysts responsible for many essential biochemical reactions.

Here is a list of catalysts used in various chemical reactions:


1. In Haber’s process for manufacture of ammonia
    Catalyst: Iron powder


Thursday, 31 October 2019

Biology Quiz-5 (AIPMT/NEET/CET) (#biologyquiz)(#eduvictors)

Biology Quiz-5 

(AIPMT/NEET/CET)
Biology Quiz-5 (AIPMT/NEET/CET) (#biologyquiz)(#eduvictors)


Multiple Choice Questions

Q1: A particular species of plant produces light, non sticky pollen in large numbers and its stigma are long and feathery. These modifications facilitate pollination by

(a) Insects
(b) Water
(c) Wind
(d) Animals


Monday, 15 April 2019

Physics Quiz for NEET, AIPM and JEE (MCQs) (#physicsquiz)(#eduvictors)

Physics Quiz for NEET, AIPM and JEE 

Physics Quiz for NEET, AIPM and JEE (MCQs) (#physicsquiz)(#eduvictors)

MCQs

Q1: Wavelength of a LASER beam can be used as a standard of 

(a) Time
(b) Temperature
(c) Angle
(d) Length


Q2: A mercury barometer is enclosed in a tall glass cylinder. What happens to the level of mercury if air is slowly removed from the enclosure by a vacuum pump? The level 

(a) steadily falls
(b) steadily rises
(c) remains unchanged
(d) suddenly falls to zero


Q3: Which of the following is not a thermodynamic function?

(a) enthalpy
(b) work done
(c) internal energy
(d) Gibb's energy

Wednesday, 27 March 2019

NEET Pre-Medical Biology Quiz: Biomolecules - Set 4 (#NEETQuiz)(#eduvictors)

NEET Biology Quiz: Bio-molecules

(Set -4)
NEET Pre-Medical Biology Quiz: Biomolecules (#NEETQuiz)(#eduvictors)

MCQs


Q1: Which of the following is a saturated fatty acid?

(a) Oleic Acid
(b) Linoeic Acid
(c) Archidonic Acid
(d) Palmitic Acid


Q2: Essential amino acids include

(a) leucine
(b) valine
(c) tryptophan
(d) all of these



Q3: Many elements are found in living organisms either free or in the form of compounds. One of the following is not found in living organisms.

(a) Silicon
(b) Magnesium
(c) Iron
(d) Sodium

Wednesday, 20 March 2019

AIPMT/NEET - Biology Quiz (#neetbiomcqs)(#eduvictors)

AIPMT/NEET - Biology Quiz 

AIPMT/NEET - Biology Quiz (#neetbiomcqs)(#eduvictors)
Honey Bee
(credits: Sandeep Handa)

Multiple Choice Questions

Q1: Which of the following structure is not found in bryophytes?
(a) A cellulose cell wall
(b) Chloroplast
(c) Sporangium
(d) Root


Q2: Which of the following statement about Bryophytes is/are incorrect?

(a) They lack xylem and phloem.
(b) The cell walls of their water conducting cells are lignified.
(c) They exhibit alternating heteromorphic generations.
(d) The sporophyte is usually nutritionally dependent on the gametophyte.


Q3: Which of the following is responsible for peat formation? (AIPMT 2014)
(a) Marchantia
(b) Riccia
(c) Funaria
(d) Sphagnum

Friday, 2 November 2018

CBSE Class 12 - Chemistry - Chapter 15: Polymers - Very Short Question Answers (#cbsenotes)(#eduvictors)

Chapter 15: Polymers :Very Short Question Answers 

CBSE Class 12 - Chemistry - Chapter 15: Polymers - Very Short Question Answers (#cbsenotes)(#eduvictors)


Q1: Define polymer.

Answer: A polymer may be defined as a high molecular weight compound formed by the combination of a large number of one or more types of small molecular weight compounds.


Q2: Based on the source, how polymers are classified?

Answer:
Natural: Found in plants and animals, e.g. Proteins, cellulose, natural rubber, silk, wool.
Synthetic: Man-made e.g. Nylon, polyester, neoprene, Bakelite, Teflon, PVC, polystyrene.


Q3: Based on structures, what are the three categories of polymers.

Answer:
Linear Polymers
Branched Polymers


Q4: Name a natural elastomer. 

Answer: Natural rubber.


Q5: Write the name of a synthetic polymer which is an ester. 

Answer: Nylon 6 or Nylon 6,6.


Monday, 8 October 2018

Class 9 - 12 - Biology - Know About Disease - Brief Notes About AIDS (#cbsenotes)(#eduvictors)

AIDS(A Brief Introduction)

Class 9 - 12 - Biology - Know About Disease - Brief Notes About AIDS (#cbsenotes)(#eduvictors)


Meaning of AIDS

The word AIDS stands for Acquired Immuno Deficiency Syndrome. This means a deficiency of the immune system, acquired during the lifetime of an individual indicating that it is not a congenital disease [disease or abnormality present from birth]. ‘Syndrome’ means a group of symptoms.


AIDS was first reported in 1981 and in the last twenty-five years or so, it has spread all over the world.

Luc Montagnier, Françoise Barré-Sinoussi, and their colleagues at the Pasteur Institute in Paris were the first to report the discovery of the virus now called the human immunodeficiency virus (HIV) associated with AIDS.


Causes of AIDS

Sunday, 7 October 2018

CBSE Class 12 - 9 - How Good Your are in Physics? - Simple Physics Quiz (1 Word Answers)(#cbsenotes)(#eduvictors)(#physicsquiz)

Physics Quiz (1 Word Answer)

CBSE Class 12 - 9 - How Good Your are in Physics? - Simple Physics Quiz (1 Word Answers)(#cbsenotes)(#eduvictors)(#physicsquiz)

Q1: Who firstly demonstrated experimentally the existence of electromagnetic wave?

Q2: The working of the quartz crystal in the watch is based on which effect?

Q3: What is the unit of Radioactivity?

Q4: What is the wavelength of the visible spectrum?

Q5: One astronomical unit is the average distance between___?

Q6: Number of basic S.I. units are ___.

Q7: What is the name of the scientist who stated that matter can be converted into energy?

Q8: The size of the atomic nucleus is of the order of___?

Q9: A temperature at which both the Fahrenheit and the centigrade scales have the same value?

Tuesday, 24 April 2018

AIPMT/ NEET CLASS 12 - BIOLOGY MCQs (#eduvictors)(#cbsenotes)

NEET/ AIPMT/ CET - BIOLOGY MCQs 

AIPMT/ NEET CLASS 12 - BIOLOGY MCQs (#eduvictors)(#cbsenotes)

1. Unicellular algae, diatoms and protozoans are the members of 

(a) Monera
(b) Fungi
(c) Protista
(d) Plantae

2. Which of the following is also known as ‘amphibian of the plant kingdom’?

(a) Algae
(b) Bryophytes
(c) Pteridophytes
(d) Gymnosperms


3. Yeast is not included in protozoas in fungi because

(a) chlorophyll is absent
(b) it has eukaryotic organisation
(c) cell wall is made up of cellulose and reserve food material as starch
(d) some fungal hyphae grow in such a way that they give the appearance of pseudomycelium


4. An association between roots of higher plants and fungi is called

(a) lichen
(b) fern
(c) mycorrhiza
(d) None of these


Sunday, 22 April 2018

CBSE CLASS 12 - Biology - Digestion - Five Digestive Juices (#cbsenotes)(#eduvictors)

Digestion - FIVE DIGESTIVE JUICES

CBSE CLASS 12 - Biology - Digestion - Five Digestive Juices (#cbsenotes)(#eduvictors)
Image credits: LadyOfHats (Wikimedia)

There are five digestive juices i.e.

Saliva,

Gastric juice

Pancreatic juice

Intestinal juice (succus entericus)

Bile juice

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