SCIENCE 7 2ND QUARTER PRETEST
Quiz by Jane Ethel David
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- Q1
Which of the following BEST describes the function of a microscope?
It is an optical instrument that can magnify the image of atoms and cells.
It is a laboratory instrument used in studying the specimens of living things.
It is a tool that scientists use in conducting experiments.
It is an instrument that can enlarge the cell.
120s - Q2
Who was the scientist who examined bacteria, blood cells, yeasts, and protozoans using the microscope that he invented?
Anton van Leeuwenhoek
Zacharias Janssen
Galileo Galilei
Robert Hooke
120s - Q3
Which part of the microscope should be manipulated if the Low Power Objective (LPO) needs to be adjusted?
Stage
Eyepiece
Light source
Coarse adjustment knob
120s - Q4
What is the function of a light source in the compound light microscope?
It makes the image of the specimen visible.
It enlarges the size of the specimen.
It provides illumination to the specimen.
It magnifies the image of the specimen.
120s - Q5
Which of the following statements is the correct way of preparing a specimen?
Position the coverslip at an angle to the slide before covering the entire specimen.
Avoid the contamination of the specimen by covering it with a cover slip.
Lift the coverslip before covering the specimen.
Cover the specimen quickly using a coverslip.
120s - Q6
Which part of the microscope contains a magnifying lens where you look through to observe the specimen?
A
D
B
C
120s - Q7
Which part will you adjust while viewing under HPO if the cut out small letter “e” you are observing is not clear?
A
E
B
C
120s - Q8
If a microscope has a 4x ocular lens and a 10x objective, what is the total magnification of the object being viewed?
4x
14x
40x
400x
120s - Q9
Which of the following shows the letter “e” as seen under the microscope?
120s - Q10
Why is it necessary for the specimen to be thinly sliced so it can be observed under the microscope?
The image will be clearer.
The image would be bigger.
The high magnification objective can be used.
The light could pass through the specimen.
120s - Q11
Which sequence of biological levels of organization is correctly arranged from most complex to simplest?
organism - organ system - organ - tissue - cell
cell - tissue - organ - organ system - organism
cell - organ - organ system - tissue - organism
organism - organ - organ system - tissue - cell
120s - Q12
Which level of organization in an organism is the basic unit of life?
organ system
organ
tissue
cell
120s - Q13
An organ system of a complex form of organism is made up of different organs that perform a specific function. Which of the following organs DOES NOT match its function?
Heart: Circulation
Lung: Respiration
Kidney: Excretion
Muscle: Support
120s - Q14
Which of the following statements correctly describe the organ system of plants?
Plants and animals have the same set of organ systems
Plants have flowers that reproduce asexually.
Plant’s shoot system is made up of flower, leaf and stem.
Plants have a nervous system that coordinates the functions of other organs.
120s - Q15
Which of the following examples describes a population?
Six birds spotted this morning nesting on different trees at the Marikina River Park.
Eight dogs and two cats roaming in one of the Barangays in Marikina.
Five varieties of plants in a rectangular pot sold yesterday in Imelda’s Garden located in Marikina.
Five Carabaos seen in Marikina City in 2019.
120s
