250+ Biology One Liner Questions Part-II (RRB/RRC, SSC 10+2, LDC, MTS, CGL, CPO And Other Competitive Exams)

Biology

(RRB/RRC, SSC 10+2, LDC, MTS, CGL, CPO and other competitive exams)

For all the students, you all need to know the now a days you need to know Science in depth to face a competitive exam as well as you need to know biology subject to make yourself safe in exam. now a days it is a neck to neck fight to achieve a position in competitive exam.

Here we are giving a lot of one liner questions. it will be in some part. This is part-II & it is containing 250+ questions . In future we will upload other parts.

what this chapter containing..... 

Some questions and answer

***Platelets are dead - in the spleen
***The sex of the child is determined by the chromosome (XY) of the father. 
***Fad's heart consists of three parts. 
***Malaria is transferred by one person to another- Anaphylase mosquito 
***Old and endangered: Where red blood cells are destroyed - Spleen 
***Which are the most sensitive indicators of  health of community - infant mortality rate 
***What is the life span of red blood cells (RBC) of man - 120 days
***Fish is a first-class protein because it contains - essential amino acids.

***Which disease is caused by iron deficiency- Anemia

***What is the protein part of an enzyme - apozyme

***The vitamin very variable and is easily destroyed during cooking and storage,which is-C

***Iodine test is used to check the presence of-carbohydrates 
 
 Except these questions there are 250+ more question and answer in the providing PDF. Download this pdf by clicking the download button.

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NCERT Science 2nd Chapter (IS MATTER AROUND US PURE?)

NCERT Science 2nd Chapter

(IS MATTER AROUND US PURE?)

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Here We Mention What The Chapter Contains:

2.1 What is a Mixture?

Mixtures are constituted by more than one

kind of pure form of matter. We know that

dissolved sodium chloride can be separated

from water by the physical process ofevaporation. However, sodium chloride is itself

a pure substance and cannot be separated by

physical process into its chemical constituents.

Similarly, sugar is a substance which contains

only one kind of pure matter and its

composition is the same throughout.

Soft drink and soil are not single pure

substances. Whatever the source of a

pure substance may be, it will always have

the same characteristic properties.

Therefore, we can say that a mixture

contains more than one pure substance.

2.2 What is a Solution?

A solution is a homogeneous mixture of two

or more substances. You come across various

types of solutions in your daily life. Lemonade,

soda water etc. are all examples of solutions.

Usually we think of a solution as a liquid that

contains either a solid, liquid or a gas

dissolved in it. But, we can also have solid

solutions (alloys) and gaseous solutions (air).

In a solution there is homogeneity at the

particle level. For example, lemonade tastes the

same throughout. This shows that particles of

sugar or salt are evenly distributed in the

solution.

Sl. no.	Dispersed phase	DispersingMedium	Type	Example
1	Liquid	Gas	Aerosol	Fof, Cloud, Mist
2	Solid	Gas	Aerosol	Smoke, automobile exhaust
3	Gas	Liquid	Foam	Shaving cream

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NCERT Science 1st Chapter (MATTER IN OUR SURROUNDINGS)

NCERT Science 1st Chapter

(MATTER IN OUR SURROUNDINGS)

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Here we mention what the chapter contains:

1.1.1 MATTER IS MADE UP OF PARTICLES

For a long time, two schools of thought prevailed

regarding the nature of matter. One school

believed matter to be continuous like a block

of wood, whereas, the other thought that matter

was made up of particles like sand. Let us

perform an activity to decide about the nature

of matter – is it continuous or particulate?................. continue....

1.2.1 PARTICLES OF MATTER HAVE SPACE

BETWEEN THEM

In activities 1.1 and 1.2 we saw that particles

of sugar, salt, Dettol, or potassium

permanganate got evenly distributed in water.

Similarly, when we make tea, coffee or

lemonade (nimbu paani ), particles of one type

of matter get into the spaces between particles

of the other. This shows that there is enough

space between particles of matter...............continues

1.5.2 HOW DOES EVAPORATION CAUSE

COOLING?

In an open vessel, the liquid keeps on

evaporating. The particles of liquid absorb

energy from the surrounding to regain the

energy lost during evaporation. This

absorption of energy from the surroundings

make the surroundings cold.........continue............

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