Second Quarter Science 7 Pretest
Quiz by Kimberly A. Regollen
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- Q1
Which of the following BEST describes the function of a microscope
multiplem:// 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 tool that scientists use in conducting experiments
30s - Q2
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?
Kidney-Excretion
Heart-Circulation
Lung-Respiration
multiplem://Muscle-Support
30s - Q3
multiplem://Who was the scientist who examined bacteria, blood cells, yeasts, and protozoans using the microscope that he invented.
Anton Van Leeuwenhoek
Robert Hooke
Galileo Galilei
Zacharias Janssen
15s - Q4
multiplem://Which part of the microscope should be manipulated if the Low Power Objective (LPO) needs to be adjusted?
Stage
Light source
Coarse adjustment knob
Eyepiece
15s - Q5
multiplem://What is the function of a light source in the compound light microscope?
It enlarges the size of the specimen.
It magnifies the image of the specimen
It provides illumination to the specimen
It makes the image of the specimen visible
15s - Q6
Which of the following statements is the correct way of preparing a specimen?
Avoid the contamination of the specimen by covering it with a cover slip
multiplem://Position the cover slip at an angle to the slide before covering the entire specimen
Cover the specimen quickly using a cover slip
Lift the cover slip before covering the specimen
30s - Q7
Which part of the microscope contains a magnifying lens
where you look through to observe the specimen?
multiplem://D
B
C
A
30s - Q8
Which part will you adjust while viewing under HPO if the
cut out small letter “e”you are observing is not clear?
C
multiplem://A
D
B
30s - Q9
If a microscope has a 4x ocular lens and a 10x objective, what is the total
magnification of the object being viewed?
14x
multiplem://40x
4x
400x
30s - Q10
Which of the following shows the letter “e” as seen under the microscope?
30s - Q11
Which of the following statements correctly describe the organ system of plants?
multiplem://Plant’s shoot system is made up of flower, leaf and stem.
Plants have flowers that reproduce asexually
Plants and animals have the same set of organ systems.
Plants have a nervous system that coordinates the functions of other organs
30s - Q12
Which level of organization in an organism is the basic unit of life?
multiplem://cell
organ system
tissue
organism
30s - Q13
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 high magnification objective can be used
multiplem://The light could pass through the specimen
The image will be clearer
30s - Q14
Which of the following examples describes a population?
multiplem:// Five Carabaos seen in Marikina City in 2019.
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
Eight dogs and two cats roaming in one of the Barangays in Marikina
30s - Q15
Which of the following pairs is NOT correctly matched?
ribosomes-proteinsynthesis
chloroplasts-photosynthesis
cell membrane-differentially permeable
multiplem://mitochondria-digestive enzymes
30s
