BIO FLIPBOOK : MOLECULES OF LIFE

BIOLOGY SB015 ASSIGNMENT
2022/2023

BIO FLIPBOOK

MOLECULES OF LIFE
&

CELL STRUCTURES AND FUNCTIONS






NAME: NUR BATRISYIA HUDA BINTI JAIS
MATRICS NUMBER: MS2113173153
PRATICUM: H6T01B
LECTURER'S NAME: DR. HIDAYATUL ILLAH BINTI AHMAD SAAD

MAIN TYPES Water
OF Carbohydrates
MOLECULES Lipids
OF LIFE Proteins
DNA and RNA molecules

STRUCTURE Consists of an oxygen atom and 2
OF WATER hydrogen atoms.
MOLECULE Two hydrogen atoms form polar
covalent bond with an oxygen atom.
Water molecules are held together by
a hydrogen bond.

Water is a polar molecule

STRUCTURE -oxygen region has a partial negative charge
OF WATER -both the hydrogen regions have a partial

......positive charge

MOLECULE

Angle between the 2 hydrogen atoms
is 104.5°

STRUCTURE Each water molecule can form
OF WATER hydrogen bonds with up to maximum 4
MOLECULE other water molecules.

BODY TEMPERATURE MAY Water has high latent heat of vaporisation.
RISE DURING HOT DAYS. High amount of heat energy is required or
HOW CAN SWEATING absorbed to turn 1g of water from liquid state
HELP TO GIVECOOLING into water vapour.
EFFECT FOR OUR BODY? Evaporation of sweat uses a lot of heat energy
WHAT ABOUT ANIMALS and this energy has a cooling effect to the skin
THAT DO NOT SWEAT and helps prevent overheating.
SUCH AS ELEPHANTS? Elephants do not sweat will bathe or wet
GIVE EXPLANATION BY themselves with water to prevent their bodies
APPLYING THE CONCEPT from overheating during hot days. That provides
RELATED TO THE an immediate cool-down.
PROPERTIES OF WATER. The intricate pattern of wrinkles and crevices in
elephants skin traps water, which evaporates
SDSC | New Members and transfers heat into the air, much the way
sweating cools them down.

WATER MOLECULES OSMOSIS
MOVE INTO OR OUT OF Osmosis is a movement of water molecules from
CELLS THROUGH
OSMOSIS. EXPLAIN ON higher water potential region to lower water
OSMOSIS AND potential region across a selectively permeable
COMPARE IT WITH THE
OTHER TYPES OF membrane until equilibrium is reached
PASSIVE TRANSPORT.

WATER MOLECULES SIMPLE O S M O
S I S
MOVE INTO OR OUT OF D I F F U
S I O N
CELLS THROUGH
OSMOSIS. EXPLAIN ON Kinetic energy due to Kinetic energy due to
OSMOSIS AND random molecular random molecular
COMPARE IT WITH THE motion o
f water
OTHER TYPES OF motion of t
he diffusing molecules.
PASSIVE TRANSPORT. paticles.

Net movement of particles Simple diffusion of water
(ions or molecules) down molecules from a high

the concentration water potential region to a
grad
ient low water po
tential region

through a selectively
permeable membrane.

Eg:Movement of Eg:Movement of water
fats,oxyg
en,carbon into and out
of cells via
dioxide through the lipid
portion of the membrane. membrane pores.

WATER MOLECULES
MOVE INTO OR OUT OF
CELLS THROUGH
OSMOSIS. EXPLAIN ON
OSMOSIS AND
COMPARE IT WITH THE
OTHER TYPES OF
PASSIVE TRANSPORT.