DIAGNOSTIC TEST SCIENCE 7
Quiz by Jenny Dela Vega
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- Q1
Which of the following statements BEST describes a compound light microscope?
It uses light and has one lens with low magnification.
It uses a beam of electrons and has a very high magnification
It uses light and has two or more lenses with high magnification.
It uses both light and beam of electrons to magnify an image
45sS7LT-IIa-1 - Q2
Jim observes the pollens from a plant under a compound light microscope. Which mechanical part should he adjust if he wants to change the objective from Low Power Objective (LPO) to High Power Objective (HPO)?
Coarse adjustment knob
Revolving nosepiece
Fine adjustment knob
Body tube
45sS7LT-IIa-1 - Q3
Why do you need to position the coverslip at an angle to the slide before covering the entire specimen?
to prevent the cover slip from being broken
to avoid the contamination of the specimen
to prevent the formation of bubbles on the specimen
to view the specimen clearly
45sS7LT-IIa-1 - Q4
Which part should be turned on first to provide illumination to the microscope?
Stage
Eyepiece
Coarse adjustment knob
Light source
45sS7LT-IIa-1 - Q5
In carrying the microscope, which parts should be handled carefully?
Base and Eyepiece
Coarse focus knob and arm
Arm and Base
Coarse focus knob and base
45sS7LT-IIa-1 - Q6
Allen examines a specimen of onion under the microscope. He observes that the image of the onion cells is slightly dim. Which of the following parts of the microscope should he adjust to change the intensity of light?
Revolving nosepiece
Objectives
Iris diaphragm
Eyepiece
45sS7LT-IIa-1 - Q7
Which of the following shows letter “e” as seen under the microscope?
45sS7LT-IIb-2 - Q8
If a microscope has a 4x ocular lens and a 10x objective, what is themicroscope's total magnification?
400x
4x
40x
14x
45sS7LT-IIb-2 - Q9
Which sequence of biological levels of organization is correctly arranged from most complex to simplest?
organism > organ system > organ > tissue > cell
organism > organ > organ system > tissue > cell
cell > tissue > organ > organ system > organism
cell > organ > organ system > tissue > organism
45sS7LT-IIc-3 - Q10
Which level of organization in an organism is the basic unit of life?
organ
tissue
organ system
cell
45sS7LT-IIc-3 - Q11
What level of biological organization refers to a group of organisms of similar species found within a specific area at a given time?
community
population
organism
ecosystem
45sS7LT-IIc-3 - Q12
How is each biological level of organization interconnected?
The biosphere level of organization starts from an organism that is a part of population, all of the populations make up an ecosystem.
An organism is made of different organ systems, an organ system is made up of multiple organs, an organ is made up different tissues, and each tissue is made up of cell.
Cells make up the tissues, tissues make up the organs, multiple body systems form an organ
All are correct.
45sS7LT-IIc-3 - Q13
At which level of biological organization is a group of organs that work together to perform a specific physiological process found?
cell
organism
organ
organ system
45sS7LT-IIc-3 - Q14
Which of the following cannot be performed by a plant if its chloroplasts are damaged?
give instruction for the cell to reproduce
excrete waste materials
protect the whole cell
make food for the cell
45sS7LT-IIc-3 - Q15
What do you call the organelle that plays a role in animal cell division?
cytoplasm
mitochondrion
vacuole
lysosome
45sS7LT-IIc-3
