Worksheets2nd Quarter Reviewer in Science 7
Total questions: 20
Worksheet time: 10mins
At which level of biological organization do interactions occur between living and non-living components in a defined area?
organism level
ecosystem level
cellular level
organ level
What is the function of the mirror in a microscope?
To support the specimen
To house the objective lenses
To control the light source
To magnify the image
Which term refers to the association of similar cells doing the same function?
organ
tissue
organism
organ system
Which cellular structure is responsible for controlling the passage of substances into and out of animal and plant cells?
cytoplasm
golgi bodies
vacuole
cell membrane
What will be the field to view for an image with high magnification but low in resolution?
clear and enlarged
blurred but the same size
blurred and enlarged
no change in size and quality
What is the other term for sex cell (egg or sperm)?
gamete
pollen
offspring
embryo
What major organelle that plant cells have while animal cells don't?
cell wall
ribosome
nucleus
cell membrane
Who studied a piece of cork under a microscope?
Ernst Abbe
Anton Van Leeuwenhoek
Robert Hooke
Zacharias Janssen
Which correctly describes asexual reproduction? It is a process of reproduction which involves .
fertilization
only one parent
pollination
two or more parents
Which of the following tools is used to observe a miniscule specimen?
mirror
microscope
telescope
binoculars
In plants, what is the structure responsible for producing male gametes (pollen)?
ovary
anther
petal
pistil
Which organelle is known as the "powerhouse" of the cell and is responsible for ATP production?
mitochondria
chloroplast
ribosome
endoplasmic reticulum
Which represents an abiotic component of the environment?
grass on the fields
sprouting mongo seeds
sea cow nursing its young
weather in an area
Which part of a microscope holds the specimen to be observed?
stage
eyepiece
fine adjustment knob
nosepiece
Which plant part is commonly used in vegetative propagation to produce a new individual plant?
flower
petals
stem
seed
What is the name of the jelly-like substance that is inside the cell?
cytoplasm
chloroplast
nucleus
cell wall
What level of biological organization is next to organism?
Population
Ecosystem
Community
Biosphere
At which smallest level of organization in an organism can the characteristics of life be carried out?
cell
organ
organ system
tissue
During focusing, which part of the microscope is responsible for making small, precise adjustments to achieve a sharp image?
Stage
Fine adjustment knob
Diaphragm
Eyepiece
Which is the correct sequence - from biggest to smallest - of the levels of organization in an organism?
cell → organ → organ system → tissue
organ → organ system → tissue → cell
organ system → organ → tissue → cell
tissue → cell → organ → organ system.
