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WorksheetsCHAPTER 2 : CELL AS A BASIC UNIT OF LIFE
Total questions: 35
Worksheet time: 19mins
Why is Paramecium a unicellular organism?
because it is an animal cell
because it is only made of one cell
because it has many cells
because it is a plant cell
Below shows the order of cell organization.
cell ⟶ tissue ⟶ organ ⟶ Z ⟶ organism What is an example of Z ?
brain
heart
blood plasma
blood circulatory
Why are humans considered complex organisms?
Choose THREE answers.
The human body contains millions of cells.
The human body carries out all life processes.
Cells form tissues, organs and systems that enable the body to function properly.
The human body is only made up of one cell.
What is the correct hierarchy of cells?
tissues-cells-systems-organs-organisms
cell-organisms-tissues-organs-systems
cells-tissues-organs-systems-organisms
organs-tissues-cells-systems-organisms
What is the biggest function of the muscular system?
to help digest food
to help us move
to help us breathe
to help us remove waste
What is the biggest function of the respiratory system?
to pump blood
to help us digest food
to take in oxygen and release carbon dioxide
to help us fight disease and infection
This is...
cheek cells
nerve cells
onion cells
muscle cells
A leaf and a fruit are examples of _____________ in plants.
organ
system
cell
tissue
Which of the following is NOT a plant cell?
Palisade cell
Epidermal cell
Guard cell
Epithelium cell
A plant's leaves, stems and roots work together to transport water to different parts of the plant. These organs make up the _______________________.
transportation system
excretory system
skeletal system
respiratory system
Photosynthesis process and cell respiration process complements each other. Green plants carry out photosynthesis with the presence of sunlight and produces gas X. Gas X will be used by human and animals to carry out respiration and gas Y is produced. Gas Y will be used by green plants to carry out photosynthesis.
Which of the following is correct about gas X and gas Y?
Gas X: Nitrogen; Gas Y: Oxygen
Gas X: Oxygen; Gas Y: Hydrogen
Gas X: Carbon dioxide, Gas Y: Oxygen
Gas X: Oxygen; Gas Y: Carbon dioxide
The test for starch is done for area X and area Y after three days. What is the results of the test?
X: Turns dark blue; Y: Turns dark blue
X: Turns to green; Y: Turns to yellow
X: Turns to white; Y: Does not turn white
X: Turns dark blue; Does not turn dark blue
What is the factor that is not needed in photosynthesis process?
Sunlight
Chlorophyll
Oxygen
Carbon dioxide
What are the components that exist in animal cells ?
Nucleus, cytoplasm, mitochondria, cell membrane
Cell membrane, cell wall, cytoplasm, mitochondria
Chloroplast, nucleus, cell wall, mitochondria
Mitochondria, vacuole, cell membrane, nucleus
Which of the following components in cell controls all activities in the cell and contains chromosomes consisting of DNA ?
Cell membrane
Nucleus
Mitochondria
Cell wall
What is the function of Epithelium cell ?
Send information (impulse)
Protects the surface layer of the skin and internal organs
Transport oxygen
Destroy bacteria
What is the function of Guard cells ?
Reduces the water loss and enable the gaseous exchange
Control the size of the stoma (leaf pore)
Contain a large amount of chloroplasts for photosynthesis
Absorb water and mineral salts from the soil
Cells can undergo the process in this image to form new cells and replace damaged cells. What does this image represent?
Nuclues
Cell division
Prokaryotic Cells
Uni-Celluar
Which cell does not have a nucleus?
White blood cell
epithelium cell
Red blood cell
Brain cell
Single celled organisms are called
unicellular organisms
multicellular organisms
What structure tells you this diagram is of a plant cell and not an animal cell?
cell wall
mitochondrion
nucleus
cell membrane
What is cell ?
Living organism
A brick
Basic unit of life
component that combine together to form an organ
Which of the following is the function of mitochondria ?
Medium where chemical reactions occur
Controls the flow of material in and out of the cell
Produces energy for reactions
Absorbs light energy for the process of photosynthesis
Plant make their own food through ?
Respiration
Photosynthesis
What is the function of lymphatic system ?
Break down complex food into simpler form
Protect the body from infections of bacteria, virus and others
Removes excretory waste from the body
Carries oxygen, nutrients and hormones to all parts of the body
Carries information from the brain to the entire body in the form of impulse
Plant make their own food through ?
Respiration
Photosynthesis
Why the leaf must be dipped into boiling water ?
To change the colour of the leaf
To break the cell wall
To extract out chlorophyll
To detect the presence of starch
Cells with the same function combine to form a
organ
tissue
system
organism
A few organs with related functions that work together for a specific function forms a
cell
tissue
organism
system
What are the TWO products of photosynthesis ?
Oxygen
Carbon dioxide
Glucose
Chlorophyll
Which is the example of a system.
Brain
Heart
Blood Plasma
Blood circulation
A red blood cell transports ____________ .
food
water
mineral salts
oxygen
The diagram shows an _____________________.
plant cell
animal cell
red blood cell
cheek cell
What type of human body system shown in the diagram?
Respiratory system
Digestive system
Muscular system
Nervous system
