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WorksheetsSECOND QUARTER EXAM IN SCIENCE 7
Total questions: 50
Worksheet time: 25mins
The following statements describe how to focus a specimen under the compound microscope, EXCEPT:
(A) Aim the mirror at your light source.
(A) Use the fine adjustment knob to bring the specimen into focus.
(A) Adjust the stage in order to find the center focus of the specimen.
(A) Move the coarse adjustment knob towards you only.
When does a zygote being produced?
During fission
During conjugation
During fertilization
During pollination
A cell is observed to contain a nucleus, mitochondria and chloroplasts. From this information you can conclude that the cell is _______.
a plant cell
an animal cell
a bacterial cell
a prokaryotic cell
It is known as the powerhouse of the cell.
Chloroplast
Mitochondria
Nucleus
Vacuoles
He created powerful lenses that could see bacteria in a drop of water.
Anton van Leeuwenhoek
Robert Hooke
Marcello Marphigi
Robert Kock
Which part of the cell gives the cell its shape?
Cell membrane
Cell wall
Cytoplasm
Ribosome
What is the building block of life?
Cell
Metabolism
Organ
Secretion
Which of the following is the simplest level of ecological organization?
A population
A community
An ecosystem
An individual or species
What organelles serves as a 'highway' of the cell?
Cell wall
Cell membrane
Endoplasmic reticulum
Vacuoles
Which of the following is an example of tuber?
Ginger
Onion
Potato
Strawberry
Which of the following differentiates organs from tissues?
Organs and tissues are made up of cells.
Organs and tissues make up an organ system.
Organs make up organ system; cells make up tissues.
Organs make up organ system; tissues make up organs.
It is a dot-like organelle that produces proteins for the cell.
Cell membrane
Nucleus
Mitochondria
Ribosomes
Which of the following organelle functions for the storage of water, food, and waste products of the cell?
Cell wall
Chloroplast
Mitochondria
Vacuoles
How many parent/s is/ are required in asexual reproduction?
Four
One
Six
Two
The organ systems of plants consist of the root and shoot systems. Why is it important for these organ systems to work together?
To grow and survive
To avoid pests and other animals
To avoid floods and strong winds
To survive during earthquakes
What is one advantage of sexual reproduction over asexual reproduction?
It is faster and produces more offspring.
It allows offspring to adapt better due to genetic variation.
It produces offspring identical to the parent.
It does not require a mate.
Which of the following units is the highest level of biological system?
Biosphere
Community
Ecosystem
Population
It holds and revolves the objective lenses.
Adjustment knob
Diaphragm
Revolving nosepiece
Mirror
Which part of the microscope is used to support the entire instrument?
Arm
Base
Stage
Diaphragm
Cell organelles are located within the _____ of the cell.
cell membrane
cytoplasm
lysosome
nucleus
Which of the following statements is TRUE?
Groups of organs working together are called cells.
Groups of cells working together are called tissues.
Groups of organs working together are called organisms.
Groups of tissues working together are called organ systems.
A plant cell is viewed using a 10x eyepiece magnification and 43x HPO. How many times will it be magnified?
10 times
143 times
43 times
430 times
How do you call the collection of organisms that belong to different populations but all live in the same area and interact with one another?
Community
Ecosphere
Ecosystem
Population
Which two parts of the light microscope magnify the image of an object?
Eyepiece and mirror
Objectives and mirror
Eyepiece and objective
Objectives and diaphragm
Which of the following describes asexual reproduction?
Sex cells are not involved. Single parent only
It involves the union of similar gametes.
A new individual develops from a sex cell.
It involves the union of two kinds of gametes.
What organelle gives the plant cell its rectangular shape?
Cell wall
Cell membrane
Nucleus
Mitochondria
These are tiny organs that have a specific function inside the cell.
Organelles
Organisms
Systems
Tissues
Which of these structures helps plant cells maintain their rectangular shape?
Cell Wall
Cell Membrane
Chloroplast
Nucleus
Which of the following describes abiotic component?
It has a living and non-living organism.
It is a living organism in an ecosystem.
It is a non-living thing in an ecosystem.
It is an organism that lives in an ecosystem.
Julia was observing an onion cell under the High Power Objective (HPO) and noticed that it moved upward and then to the right. What does this tell Julia about the actual movement of the specimen?
The specimen moved upward and to the left.
The specimen moved upward and to the right.
The specimen moved downward and to the right.
The specimen actually moved downward and to the left.
At which smallest level of organization in an organism can the characteristics of life be carried out? Basic unit of life.
Cell
Organism
System
Tissue
What is one advantage of sexual reproduction over asexual reproduction?
It is faster and produces more offspring.
It allows offspring to adapt better due to genetic variation.
It produces offspring identical to the parent.
It does not require a mate.
Which process involves the combination of male and female sex cells?
Budding
Binary fission
Sexual reproduction
Vegetative propagation
What mode of asexual reproduction is it when an organism undergoes a period of growth and then splits into two separate organisms?
Budding
Fission
Regeneration
Spore formation
This organelle functions in cell respiration. "Powerhouse of the cell"
Endoplasmic Reticulum
Lysosome
Mitochondrion
Ribosome
A tool which can help see tiny objects and living organisms making them look bigger.
Kaleidoscope
Microscope
Periscope
Telescope
Which of the following instrument would you use to see a plant cell?
Kaleidoscope
Microscope
Periscope
Telescope
Which is the correct sequence - from the lowest to highest- of the levels of organization in an organism?
Cells -Tissues -Organs -Organ systems -Organisms -Population -Community -Ecosystem -Biosphere
Cells -Tissues -Organs -Organ systems -Organisms -Community -Population -Ecosystem -Biosphere
Cells -Organs -Tissues -Organ systems -Organ -Organisms -Population -Community -Ecosystem -Biosphere
Cells -Tissues -Organ systems -Organ -Organisms -Population -Community -Ecosystem -Biosphere
When looking at letter 'e' under the microscope, what is the position of the letter as seen under the microscope?
The position stays the same.
The 'e' is positioned diagonally.
The letter 'e' appears larger and inverted.
The position cannot be identified due to its enlarged magnification.
Which of the following organelles can be found in a plant cell but NOT in an animal cell?
Chloroplast
Mitochondria
Nucleus
Vacuole
What level of biological organization is made up of a group of similar cells that perform a specific function?
Organ
Organism
System
Tissue
It is a non-living component of an ecosystem.
Abiotic
Biotic
Consumer
Decomposer
It is a component of the environment that includes living organisms.
Abiotic
Biotic
Consumer
Producer
What abiotic component is made up of small particles of rock mixed with decomposed living things like animals?
Oxygen
Temperature
Soil
Water
In an/a __________, living organisms work along with the physical component of a habitat to maintain life.
atmosphere
biosphere
ecosystem
environment
Which of the following is a biotic component of an ecosystem?
Soil
Warm sun
Water
Worm
Which of the following is an abiotic component of an ecosystem?
Ant
Bacteria
Oxygen gas
Snail
The following are examples of abiotic components of an ecosystem EXCEPT.
bird
rock
sunlight
water
________1. It is an ecological relationship whereby one is benefited while
the other is harmed.
Mutualism
Parasitism
Commensalism
Predation
________1. It is an ecological relationship whereby both organisms benefit from each other.
Mutualism
Parasitism
Commensalism
Predation
