Set A
Set B
Set C
Set D
100
Identify the class of animals: "they have front two limbs as wings"
Birds
100
Identify the class of animals: "their eggs have no shells and are laid in water"
Fish
100
Identify the class of plant: "they flowers in the multiples of four"
Dicot plant
100
Magnification of image produced by electron microscope
x500000
200
What is the structural similarity between Chloroplast and mitochondria
They have a double membrane
200
Identify the independent variable for following:
"Investigating how temperature affects the rate of diffucsion"
Temperature
200
Which transport process requires membrane carrier proteins
Active Transport
200
Smaller units of DNA are called ___________
Nucleotides
300
Weak growth and yellowing of leaves is a symptom for which deficiency in plants?
Nitrates
300
Identify the point where Light intensity is not a limiting factor
B-C
300
State the role of amylase in digestion
Breakdown of Starch to Maltose
300
What is the orientation of Xylem and phloem in the given image
400
Arrange the following in logical sequence:
movement of Oxygenated blood
Aorta, one way valve, pulmonary vein, left ventricle, lungs, left atrium, parts of the body, semi-lunar valve
Lungs - pulmonary vein - left atrium - one way valve - left ventricle - semilunar valve - aorta - parts of the body
400
label the blood vessels 1, 4, 5
1- pulmonary artery
4- renal artery
5- hepatic vein
400
Define "active immunity"
long-term defence against a pathogen by antibody production in the body
400
what happens to the diaphragm, rib cage, volume of thorax and intercostal muscle during inhalation
Diaphragm: contracts and lowers
Rib cage: raised/ move upwards and outwards
Intercostal muscle: contracts
Volume of Thorax: Increases
500
Complete the following sentence for when a person enters a dark room:
When theciliary muscles _________ the suspensory ligaments ________ and the lens ___________. The _________ cells are now receive the stimulus while the ________ cells do not.
1- contracts
2- slacken
3- bulge
4- Rod
5- cones
500
Enlist down how blood sugar is regulated when a person has eaten a meal rich with carbohydrates
cells of pancreas receive signal - insulin secreted - liver cells stimulated to absorb excess glucose - glucose converted to glycogen - blood glucose level reduced
500
The diagrams below show the structure of two flowers – Flower A and Flower B.
Compare the structural adaptations of Flower A and Flower B.
500
In cows, the gene for coat colour shows codominance. The allele R codes for red hair and the allele W codes for white hair. A heterozygous cow (RW) has roan coat colour (a mix of red and white hairs).
A farmer crosses a roan bull with a red cow.
Give the possible genotypes and phenotypes of the offspring
Genotype: 50% homozygous red and 50% heterozygous roan
Phenotype: 50% red and 50% Roan