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Biology
UTME / JAMB 2015
Reproduction in Plants & Animals
Solution
The part that supplies food from the mother to the foetus is
A
Amnion
B
Chorion
C
Umbilical Cord
D
Placenta
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Option D is correct. This is because, placenta establishes an intimate connection between the embryo and the mother. This connects the placenta to transfer food,water and oxygen from mother to the embryo or foetus
The placenta supplies food and nutrients to the fetus, not the umbilical cord. The placenta is the organ that develops in the uterus during pregnancy and attaches to the uterine wall, providing the fetus with oxygen and nutrients through the umbilical cord. The umbilical cord is the structure that physically connects the fetus to the placenta.
Source: Myschool Past Questions Archive (Record #41239)
Biology
UTME / JAMB 2015
Nervous, Hormonal Coordination & Sense Organs
Solution
Which of these is not the part of the eye?
A
Cochlea
B
Conjunctiva
C
Cornea
D
Iris
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Option A is the correct answer. This is because, cochlea is the structure of the mammalian hearing organ called ear.
Source: Myschool Past Questions Archive (Record #41242)
Biology
UTME / JAMB 2015
Transport System in Plants & Animals
Solution
De-oxygenated blood is transported to the lungs through the
A
renal vein
B
hepatic portal vein
C
pulmonary artery
D
pulmonary vein
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Option C is correct. This is because for deoxygenated blood (blood containing carbon (iv) oxide) in the heart to be returned back to the lungs for the removal of the CO2,pulmonary artery aids in the process.
Source: Myschool Past Questions Archive (Record #41244)
Biology
UTME / JAMB 2015
Variety of Organisms & Classification of Living Things
Solution
One of the following is the unit of life
A
cell
B
tissues
C
organ
D
system
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Option A is correct. This is because, cell is the basic functional and structural unit of life.
Source: Myschool Past Questions Archive (Record #41246)
Biology
UTME / JAMB 2015
Reproduction in Plants & Animals
Solution
The following are examples of a true fruit, except
A
mango
B
oil palm
C
orange
D
pineapple
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Options A, B and C are not correct. This is because, they are all true fruits (i.e, the fruits that develops solely from a fertilized ovary.
Option D is correct. This is because, pineapple is a false fruit (a fruit developed or formed from the ovary and other floral parts of the plant or fruit flowers.
Source: Myschool Past Questions Archive (Record #41247)
Biology
UTME / JAMB 2015
Growth, Micro-organisms & Public Health
Solution
The vector that transmit trypanosome is the
A
butterfly
B
housefly
C
mosquito
D
tsetse fly
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Option D is correct. This is because, tsetse fly is the vector that transmits trypanosome that causes trypanosomiasis or sleeping sickness.
Source: Myschool Past Questions Archive (Record #41248)
Biology
UTME / JAMB 2015
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
The following are ductless glands except
A
adrenal
B
pancreatic
C
parathyroid
D
salivary
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Option D is correct. This is because, salivary glands are found in the mouth, which secretes a juice called saliva that contains an enzyme called ptyalin.
Source: Myschool Past Questions Archive (Record #41249)
Biology
UTME / JAMB 2015
Transport System in Plants & Animals
Solution
White blood cells are also known as
A
erythrocytes
B
leucocytes
C
lymphocytes
D
phagocytes
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Option B is correct. This is because, leucocytes is another name for white blood cells
Source: Myschool Past Questions Archive (Record #41250)
Biology
UTME / JAMB 2015
Digestive System & Feeding Mechanisms
Solution
The removal of remnant particles of digestion from the body is called
A
assimilation
B
egestion
C
elimination
D
excretion
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Option B is correct. This is because, the removal of the remnant particles of digestion called faeces is done through a process called egestion.
Source: Myschool Past Questions Archive (Record #41251)
Biology
UTME / JAMB 2015
Digestive System & Feeding Mechanisms
Solution
Enzyme ptyalin acts on starch in the
A
oesophagus
B
large intestine
C
mouth
D
stomach
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Options A and B are not correct.
Option C is correct. This is because, the mouth is the location where enzyme ptyalin acts on starchy food.
Option D is wrong. This is because, stomach is location for the action of renin and pepsin enzymes.
Source: Myschool Past Questions Archive (Record #41252)
Biology
WAEC / WASSCE 2015
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The structure of the cell membrane is a
A
double layer and a double protein layer
B
middle bi-layer of protein with a lipid layer on either surface
C
middle bi-layer of lipid with a protein layer on either surface
D
protein layer with two inner lipid layers
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #45342)
Biology
WAEC / WASSCE 2015
Respiration & Gaseous Exchange
Which of the following cells is a specialized cell?
A
Amoeba
B
Plasmodium
C
Guard cell
D
Meristematic cell
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #45343)
Biology
WAEC / WASSCE 2015
Cell & Its Environment (Diffusion, Osmosis & Transport)
When a Spirogyra filament is placed in a concentrated salt solution for 30 minutes, the cell would become
A
plasmolysed
B
turgid
C
shortened
D
elongated
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #45344)
Biology
WAEC / WASSCE 2015
Variety of Organisms & Classification of Living Things
Water and salts are both lost from the human body in
A
breath and sweat
B
breath and Urine
C
breath, urine and sweat
D
sweat and urine
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #45345)
Biology
WAEC / WASSCE 2015
Variety of Organisms & Classification of Living Things
Which of the following features could be used to determine the growth of a seedling?
A
Number of flowers
B
Number of leaves
C
Length of flowers
D
Length of radicle
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #45387)