CORRECT 2016 ONDO STATE JOINT EXAM BIOLOGY ANSWERS NOW AVAILABLE

VERIFIED BIOLOGY OBJ ANSWER

.1-10: DBCDCCCBAD
11-20: CBCABDCAAA
21-30: CCBCDDCABA
31-40: CCCAABBDCD

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1a)
-As Indepedent And Free Living Organisms
-As A Colony
-As A Filament
-Cells As Part Of A Living Organism

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b)
*As Indepedent And Free Living Organisms. Example - Ameoba
*As A Colony. Example - Volvox
*As A Filament. Example - Spirogyra

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c)
DIFFERENCES BETWEEN PLANT AND ANIMALS CELLS
NB: TABULATE IT WHEN WRITING IT DOWN
PLANT CELL
-Cellulose cell wall present
-Chloroplasts present
-Centrioles absent
-A large central vacuole present
ANIMAL CELL
-Cellulose cell wall absent
-Chloroplasts absent
-Centrioles present
-Small vacuoles may be present or absent

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SIMILARITIES BETWEEN PLANT AND ANIMALS CELLS
-They both have mitochondria
-They both have endoplasmic reticulum
-They both have vacuoles
-They both have chromosomes

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2a)
Respiration is
the biochemical process in which the
cells of an organism obtain energy by
combining oxygen and glucose, resulting
in the release of carbon dioxide, water,
and ATP (the currency of energy in cells).
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b)
Aerobic Respiration and Anaerobic
Respiration
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c)
C6H12O6 + 6 O2 ----> 6 CO2 + 6 H2O + light
+ heat.
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d)
-Pneumoconiosis
-Epistaxis
-Emphysema
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e)
i) Cell Membrane
ii) Tracheal System
iii) Chloroplast

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4a)
Pollution can be defined as the release of harmful or toxic substances into the environment that can damage plant and animals.
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bi)
-Carbon Monoxide
-Nitrogen Oxide
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bii)
- Death of Aquatic animals
- Diseases
- Destruction of ecosystems
- Disruption of food chains
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ci)
- The government should strictly make law and legislations against the pollution of water.
- Treatment of drainage water.
- Sewage treatments.
- Public Awareness should be made about the effect of polution.
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ii)
- Transportation
- Social events
- Commercial and industrial activities
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iii)
- It can lead to hear problem
- It can lead to sleeping disorders
- It can also lead to health problems

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5ai)
The stomach releases food into
the small intestine in a controlled
and regulated manner.
Chewed food passes from the
esophagus into the stomach; the flow
is somewhat regulated by the
esophageal sphincter but more
importantly depends on how fast you
eat and if you are eating both solids
and liquids. The passage of food from
the stomach to the small intestine is
controlled by the pyloric sphincter. The
crushed and mixed food is liquefied to
form chyme and is pushed through the
pyloric canal into the small intestine.
A network of blood vessels and nerves
surrounds the stomach; this is
responsible for the regulation of the
secretion and the motion of stomach
muscles that churns food.
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bi)
- Taproot
- Stem Tuber
- Rhizome
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bii)
- Taproot e.g carrot
- Stem Tuber e.g potato
- Rhizome e.g Iris pseudacorus
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c)
This is Because an athlete must take
something that will digest very fast in other
to give energy.


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