Critical Thinking

Which of the following is the most abundant organic compound present in the cell?

a) Lipids
b) Carbohydrates
c) Proteins
d) all are present in equal proportions.

According to biologists Ron Sender and Ron Milo of the Weizmann Institute of Science in Israel, your body replaces around 330 billion cells per day. At that rate, your body is making over 3.8 million new cells every second. Most of those are blood cells, followed by cells in your gut.

The word “muscle” comes from Latin word "musculus," meaning “little mouse“, which is what Ancient Romans thought flexed bicep muscles resembled.

Q #1) A student covers distance of 2 km from his house to school and returns back the distance and displacement covered by the student is:

A) 2000 m , Non zero
B)4000 m , Non zero
C) 2000 m , Zero
D) 4000 m , Zero

(Part-2)

*Between*
It is used in comparison
b/w two subjects

*Among*
It is used to show
comparison b/w many subjects

*Beside*
It is used to show the position

*Besides*
It is used to show in
addition to (Kay ilawa )

*After*
It is Used to show later(breadman)

*Behind*
It is used to show position which means at the back of

*Above*
It is used to show inferior in ability, status, position, figure

*Over*
It is used to show superior to in every part and also gives meaning of towards
*Since*
Point of time

*For*
-Period of time, Length of time, exchanging of things, purpose

*From*
It is used to show place of coming, place of leaving g, start of
time, and place

PREPOSITIONS OF TIME*

(Part-1)

*AT*
'At' is used for precise times

• *At* 10.30am
• *At* 8 o'clock
• *At* bedtime
• *At* breakfast
• *At* dawn/dusk
• *At* dinnertime
• *At* midday
• *At* night/noon
• *At* Southern
• *At* sunrise/sunset
• *At* ten o'clock
• *At* that time
• *At* the beginning
• *At* the end
• *At* the moment
• *At* the present
• *At* the same time
• *At* the weekend

*IN*
'In' is used for months, years, decades, centuries, and long periods of time

• *In* 16 year's time
• *In* 1991
• *In* December
• *In* January
• *In* the 1970's
• *In* the 21st century
• *In* the 70's
• *In* the afternoon
• *In* the Christmas holiday
• *In* the Dark Ages
• *In* the evening
• *In* the future
• *In* the morning
• *In* the past
• *In* the seventies
• *In* the Summer
• *In* this century

*ON*
'On' is used for days and dates

• *On* a Summer evening
• *On* Christmas day
• *On* Christmas
• *On* Friday
• *On* holiday
• *On* January 3rd
• *On* my birthday
• *On* my wedding day
• *On* that day
• *On* the 10th
• *On* the 10th of January
• *On* the first day
• *On* the last day
• *On* Tuesday night
• *On* Wednesday.

*PREPOSTIONS*
*At*
It shows party, place, festival, function, rate, speed, time, village, town, and ability of the subject

*On*
It is used to show physical contact, attachment, day, about

*In*
It is used to show city, country, continent

*Into*
It is used to show rest,
change in position

*Of*
It is used to show relation, consisting of, making of, about, due to

*Of*
It is used to show away from, aside from and it gives different meanings in different sentences

*Beneath*
It is used to show
inferior to inability, status, position,
and gives the meaning of unworthy

*Under*
It is used to show close
against, in subordination, and working progress

*With*
It is used to show
accompanied by against, work done by an instrument

*By*
It is used to show near, bymeans of, according to, quantities, by which things are sold, and work done by an agent

The radii of Noble gases is known as:

a) Atomic radii
b) Vander waal radii
c) Ionic radii
d) Covalent radii

The greatest decrease in size of atoms is observed in which of the following period of periodic table?

a) Period 3
b) Period 4
c) Period 5
d) Period 6

Do You Know?

Like Noble Gases, there are some metals known as
Noble metals.
They are known as Noble metals because
They are non-reactive or very less reactive.
These metals are Cu, Ag and Au present in group lB of periodic table.

Which one of the following is common for all the derivatives of Carboxylic acid?

a) Hydrolysis
b) Alcoholysis
c) Ammonilysis
d) None