DIVISION PRETEST SCIENCE 7
Quiz by Jenny Dela Vega
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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 an instrument that can enlarge the cell.
It is a tool that scientists use in conducting experiments.
It is a laboratory instrument used in studying the specimens of living things.
30sS7LT-IIa-1 - Q2
Who was the scientist who examined bacteria, blood cells, yeasts, and protozoans using the microscope that he invented?
Robert Hooke
Zacharias Janssen
Galileo Galilei
Anton van Leeuwenhoek
30sS7LT-IIa-1 - Q3
Which part of the microscope should be manipulated if the Low Power Objective (LPO) needs to be adjusted?
Coarse adjustment knob
Light source
Stage
Eyepiece
30s - Q4
What is the function of a light source in the compound light microscope?
It makes the image of the specimen visible.
It magnifies the image of the specimen
It provides illumination to the specimen.
It enlarges the size of the specimen.
30sS7LT-IIa-1 - Q5
Which of the following statements is the correct way of preparing a specimen?
Lift the coverslip before covering the specimen.
Avoid the contamination of the specimen by covering it with a cover slip.
Cover the specimen quickly using a coverslip.
Position the coverslip at an angle to the slide before covering the entire specimen.
30s - Q6
Which part of the microscope contains a magnifying lens
where you look through to observe the specimen?
C
B
A
D
30sS7LT-IIa-1 - Q7
Which part will you adjust while viewing under HPO if the
cut out small letter “e” you are observing is not clear?
D
C
A
B
30sS7LT-IIa-1 - Q8
If a microscope has a 4x ocular lens and a 10x objective, what is the total magnification of the object being viewed?
14x
4x
400x
40x
30sS7LT-IIa-1 - Q9
Which of the following shows the letter “e” as seen under the microscope?
30sS7LT-IIa-1 - Q10
Why is it necessary for the specimen to be thinly sliced so it can be observed under the microscope?
The image would be bigger
The light could pass through the specimen.
The image will be clearer.
The high magnification objective can be used.
30sS7LT-IIb-2 - Q11
Which sequence of biological levels of organization is correctly arranged from most complex to simplest?
organism > organ system > organ > tissue > cell
cell > organ > organ system > tissue > organism
organism > organ > organ system > tissue > cell
cell > tissue > organ > organ system > organism
30sS7LT-IIc-3 - Q12
Which level of organization in an organism is the basic unit of life?
organ system
tissue
cell
organ
30sS7LT-IIc-3 - 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?
Muscle: Support
Lung: Respiration
Kidney: Excretion
Heart: Circulation
30sS7LT-IIc-3 - Q14
Which of the following statements correctly describe the organ system of plants?
Plant’s shoot system is made up of flower, leaf and stem.
Plants have flowers that reproduce asexually.
Plants have a nervous system that coordinates the functions of other organs.
Plant’s shoot system is made up of flower, leaf and stem.
30sS7LT-IIc-3 - Q15
Which of the following examples describes a population?
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.
Six birds spotted this morning nesting on different trees at the Marikina River Park
Five Carabaos seen in Marikina City in 2019.
30sS7LT-IIc-3
