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Worksheetse-Practical Reinforcement
Total questions: 32
Worksheet time: 16mins
When focusing on a new specimen, always begin with
4x objective lens and coarse adjustment knob
10x objective lens and fine adjustment knob
40x objective lens and coarse adjustment knob
40x objective lens and fine adjustment knob
All of the following are safety rules while in laboratory EXCEPT
Students wear lab coat properly
Students wear covered shoes
Tie up long hair
Student wear sandals
What is the actual magnification of 40x objective lens?
4x
10x
100x
400x
All of the following is a proper clean-up procedure EXCEPT.
Wash the slide properly after the experiment
Arrange and place all the apparatus back into the basket
Leave the slide on the stage
Ensure the work station is always left neat and clean
Student takes more than one leaf from the main plant.
True
False
Which of the following is the last step once you have finished using the microscope?
Replace the dust cover
Remove the slide on the stage
Neatly wrap the cord around the base
Turn off the light switch
Students use a cover slip to cover the specimen on the slide.
True
False
Before observing the specimen, make sure the 10x objective lens is placed above the specimen.
True
False
You can have your long hair loose and hanging in your face during lab.
True
False
Which of the following footwear is most appropriate in the lab?
sandals
covered shoes
slippers
open-toed shoes
This component moves the stage up or down.
Rotating Nosepiece
Slide Adjustment Knob
Coarse Adjustment Knob
Fine Adjustment Knob
Which objective lens is used to view specific part of the specimen.
4x objective lens
10x objective lens
40x objective lens
100x objective lens
Which part of the microscope should you use to sharpen the image when using 40x objective lens?
Stage
Condenser
Fine adjustment knob
Coarse adjustment knob
All of the following are scientific drawing EXCEPT
horizontal and straight line for labels
using a sharp 2B pencil
labels on left or right side of the diagram only
shading the drawing
Aini has just finished using the microscope. What is the safest way for her to turn off the microscope?
Switch off the microscope, then unplug the microscope by pulling the cord away from the wall
Switch off the microscope
Unplug the microscope by pulling the cord away from the wall, then switch it off
Unplug the microscope from the wall, then switch it off
Did the plant produce O2 when the light was turned off?
Yes
No
Maybe
Don’t know
Where does light dependent reaction take place?
Stroma
Inner membrane
Matrix
Thylakoid membrane
What are the products of photosynthesis?
Water and carbon dioxide
Oxygen and glucose
Oxygen and carbon dioxide
Oxygen and water
Chloroplasts are...
Structures of animal cells to produce ATP
Organelles where lipids are elaborated
Specialized organelles of plants where food is made
Waste organelle of plants
What is chlorophyll and how does it help plants?
A pigment that absorbs light energy and makes glucose
A protein that changes shape in the presence of sunlight
A receptor that binds carbon dioxide when energized by light
An enzyme that catalyzes the production of glucose when exposed to light
Organisms, such as plants, that make their own food are called
Autotrophs
Heterotrophs
Thylakoids
Pigments
The substances needed for photosynthesis EXCEPT?
water
light energy
carbon dioxide
oxygen
Why do we need to put a drop of distilled water in preparing the slide of Elodea sp. leaf?
To stick the specimen between the slide and cover slip
To suspend the specimen between the slide and cover slip
To prevent the slide from breaking
To facilitate focus of specimen
What is the shape of a typical Elodea sp. cell?
square
longitude
fixed shape
rectangular
How to place the cover slip onto the leaf?
Place the cover slip horizontally on the sample
Place the cover slip with touching the slide
Place the cover slip angle over the sample
Place sample angle over the cover slip
What is the precaution of the Experiment Chloroplast in Aquatic Plant?
To avoid specimen not being focused
To prevent slides from breaking
to prevent air bubbles from being trapped above the cover slip
to prevent air bubbles from being trapped under the cover slip while placing the cover slip over the sample
FIGURE 1
FIGURE 1 shows the cell of Elodea sp. leaf
What is the organelle and structures that are found in FIGURE 1?
Chloroplast, cell wall and plasma membrane
Chloroplast, cell wall and nucleus
Mitochondria, cell wall and plasma membrane
Mitochondria, cell wall and nucleus
What is the importance of aquatic plants such as Elodea sp. in the freshwater ecosystem?
Consumer
Producer
Decomposer
Detritivore
Why don’t we need any stain to observe the chloroplasts in the tissue of Elodea sp.?
Because chloroplasts in the tissue of Elodea sp. are translucent and thin
Because chloroplast contain chlorophyll
Because the stain interferes with the appearance of green colour
Because the stain will mix with the green colour
The substances required by the plants to carry out the photosynthesis process are
Carbon dioxide, chlorophyll and water
Carbon dioxide, light energy and water
Carbon dioxide, light energy, chlorophyll and water
Oxygen, light energy, chlorophyll and water
The function of chloroplast in plant cell is
acts as site of protein synthesis
acts as site of cellular respiration
acts as photosynthesis
acts as site of photosynthesis
What is the arrangement of description when you write the reference?
Author’s name, Title, Year/Edition, Publishing Country, Publisher
Author’s name, Year/Edition, Title, Publisher, Publishing Country
Author’s name, Year/Edition, Title, Publishing Country, Publisher
Author’s name, Title, Year/Edition, Publisher, Publishing Country
