Posted on: 10:39 Wed, 30 May 2018




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Exam Time: Thursday 31st May 2018
OBJ & Essay – Biology – 10:00am – 12:30pm++++++++++++++++++++++++++++++++++


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BIOLOGY OBJ:-
1-10: BBEADBEEEC
11-20: DADBDCDDDB
21-30: ADECBDADEC
31-40: DADAAAACBA
41-50: BCEABCCCDB
51-60: EABBDDCCBB

SUBSCRIBERS GET ANSWERS ON TIME

BIOLOGY THEORY ANSWER:-

(1a)
(i) Sunlight: It is source of energy for during photosynthesis
(ii) Chlorophyl: It traps solar energy and coverts it to chemical energy during photosynthesis  

(1b)
(i) Humerus
(ii) Radius
(iii) Ulna
(iv) Scapula
(v) The ball and socket joint

(1c)
(i) They help in gathering food for the caste
(ii) circulating and maintaining the colony’s pheromones and food among each other via trophallaxis,
(iii) They help in tending to the eggs and nymphs
(iv) They help in taking care of the queen and king
(v) They help in constructing or repairing the nest, tunnels, galleries, feeding tunnels

(1d)
Ecosystem is a community of interaction between organisms and their environment.

(1e)
DRAWING

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(2ai)
Gene can be defined as the basic unit of iheritance which carries hereditary factors or materials such DNA. It is found in the chromosone of all cells

(2aii)
Implantation refers specifically to the attachment of the fertilized egg to the uterine lining, which occurs approximately 6 or 7 days after conception (fertilization).

(2aiii)
Group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

(2aiv)
A saprophytes are organism which feeds on dead decayed organic matter.

(2bi)
(i)It gives support and shape to the body
(ii) It helps in the production of white blood cells
(iii) It aids free movements
(iv) It helps in the attachment of muscles

(2bii)
(i) Biceps
(ii) Triceps

(2biii)
(i) Lipase
(ii) Maltase
(iii) Amylase

FUNCTION:
-Lipase breaks down dietary fats into smaller molecules called fatty acids and glycerol.
-Maltase converts maltose to glucose
-Amylase converts starch to maltose

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(3a)
(i) Diabetes modditues
(ii) Gell stone
(iii) infective hepatitis
(iv) cancer of the Liver

(3aii)
TABULATE:
Under Plant cell
(i) presence of cell wall
(ii) presence of chloroplast
(iii) Presence of sparse cytoplasm
(iv) presence of small vacuole
(v) Absence of centrosome

Under Animal cell
(i) Absence of cell wall
(ii) Absence of chloroplasts
(iii) Presence of dense cytoplasm
(iv) Presence of small vacuole
(v) Presence of Centrosome

(3b) DRAW THE DIAGRAM


(3ci)
(i) Parenchyma
(ii) Collenchyma

(3cii)
(i) it ensure fertilization takes place intenolsy
(ii) the released the eggs and despite on the egg as they move down the widuct

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(4ai)
Diffusion is the movement of (molecules atoms ions) from a region in which they are in higher concentration until an equilibrium is established

(4ai)
Osmosis this is a spontaneous movement of water molecules through a semi-permeable membrane into a region of higher solute concentration

(4aii)
Plasmolysis this is a shrinking away of protoplam linear from a cell wall of a paintor bacterium due to water loss from osmosis

(4b)
(i) lack of sleep
(ii) lack of privacy
(iii) poor hygiene
(iv) lost if physical contact

(4bii)
(I)prevention of pollution to prevent the destruction of aquatic life
(ii)prohibition of killing or poaching of animals in game reserve

(4biii)
(I)dog
(ii)horse

(4ci)
Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal’s body structure through cell growth and differentiation.

(4cii)
(i)cockroaches
(ii)termites

(4ciii)
(i)Tomatoes
(ii)Oranges


Completed

:- Emmanuel Yohanna, Emmanuel Yohanna,