Cells and Living Things
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Plant and Animal Cells
SubtopicPlant and Animal Cells under Cells and Living Things for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
What is the name of the process where green plants make their own food?
A.Respiration
B.Photosynthesis
C.Excretion
D.Sensitivity
- 2.
Which of these describes an animal cell but NOT a plant cell?
A.Has a nucleus
B.Has an irregular shape
C.Contains cytoplasm
D.Has a cell membrane
- 3.
Which life process ensures that a species of animal continues to exist over many generations?
A.Reproduction
B.Excretion
C.Growth
D.Movement
- 4.
What part of the plant cell contains a watery solution of sugars and salts?
A.Chloroplast
B.Nucleus
C.Vacuole
D.Cytoplasm
- 5.
The flowchart shows the levels of biological organization in a human. Which label represents an organ?
A.Part B
B.Part D
C.Part C
D.Part A
- 6.
Which part of the microscope provides the first stage of magnification of the specimen?
A.The mirror
B.The objective lens
C.The coarse focus knob
D.The stage
- 7.
In a multicellular organism, the skin is classified as an organ because:
A.It is made of only one type of cell
B.It consists of different tissues working together
C.It is part of the cytoplasm
D.It contains a nucleus
- 8.
What is the biological definition of an 'organ system'?
A.A single cell that can perform all life processes.
B.A group of tissues that work together to perform a function.
C.A group of organs that work together to perform a major body function.
D.A collection of different organisms living in the same area.
- 9.
When comparing a cheek cell and a leaf cell under a microscope, which structure would be seen in the leaf cell but NOT in the cheek cell?
A.Nucleus
B.Cytoplasm
C.Large permanent vacuole
D.Cell membrane
- 10.
The cytoplasm is often described as 'jelly-like'. What is its primary function in the cell?
A.To store hereditary information.
B.To act as a medium for chemical reactions and support organelles.
C.To convert light energy into chemical energy.
D.To provide a rigid frame for the cell.
Download the worksheet for Cells and Living Things - Plant and Animal Cells to practice offline. It includes additional chapter-level practice questions.
Using a Microscope
SubtopicUsing a Microscope under Cells and Living Things for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
What is the total magnification if the eyepiece is and the objective lens is ?
A.B.C.D. - 2.
Which tool would a scientist use to look at a structure that is too small for the human eye to see?
A.Telescope
B.Microscope
C.Periscope
D.Magnifying glass
- 3.
What do we call the circle of light you see when you look through the microscope?
A.Light circle
B.Field of view
C.Lens area
D.The target
- 4.
Why is it better to start with the low-power objective lens?
A.It has the highest magnification
B.It is easier to find the specimen in a wider field of view
C.It is the most expensive lens
D.It doesn't require any light
- 5.
A student is using a microscope. They notice that the image is very blurry and the fine adjustment knob isn't helping. What is the most likely mistake?
A.The slide is upside down
B.The light is too bright
C.They haven't used the coarse adjustment knob first
D.They are using the wrong eyepiece
- 6.
Which part of the microscope is the light source usually reflected from in older models?
A.The stage
B.The mirror
C.The clips
D.The nosepiece
- 7.
If an object is long and is magnified , how long will its image appear to be?
A.B.C.D. - 8.
If you are using a eyepiece and a objective, what is the effect on the image compared to using a eyepiece and a objective?
A.The image is larger
B.The image is larger
C.The image is larger
D.The image is the same size
- 9.
An organism is long. How long would its image be at magnification?
A.B.C.D. - 10.
Which of the following would NOT improve the quality of a microscope image?
A.Using a stain to increase contrast
B.Increasing the magnification beyond the limit of resolution
C.Adjusting the condenser to focus the light
D.Cleaning the lenses with lens paper
Download the worksheet for Cells and Living Things - Using a Microscope to practice offline. It includes additional chapter-level practice questions.
Specialized Cells
SubtopicSpecialized Cells under Cells and Living Things for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
How do xylem cells become specialized to form an open pipe for water?
A.By growing very long
B.By losing their end walls and internal contents
C.By developing many chloroplasts
D.By growing a long tail
- 2.
Which specialized cell is the female gamete used in reproduction?
A.Sperm cell
B.Pollen grain
C.Egg cell
D.Neuron
- 3.
Nerve cells have short branched endings. What are these called?
A.Axons
B.Dendrites
C.Cilia
D.Flagella
- 4.
What is the primary purpose of specialization in cells?
A.To make all cells look the same
B.To allow cells to perform specific jobs efficiently
C.To help cells grow larger
D.To reduce the number of organelles
- 5.
Which cell is specialized for the transport of minerals from the soil to the rest of the plant?
A.Palisade cell
B.Root hair cell
C.Phloem cell
D.Guard cell
- 6.
Muscle cells often have many blood capillaries nearby. Why is this specialization important?
A.To keep the muscles warm
B.To provide a constant supply of glucose and oxygen for contraction
C.To remove the extra chloroplasts produced by the muscle
D.To allow the muscle to store more white blood cells
- 7.
In a root hair cell, how does the lack of a cuticle (a waxy layer) help the cell?
A.It makes the cell more colorful
B.It allows water to enter the cell easily by osmosis
C.It prevents the root from getting too hot
D.It allows the cell to breathe underwater
- 8.
When a cell becomes 'differentiated,' what has actually happened to it?
A.It has doubled its size to prepare for division
B.It has developed specific structural features to perform a particular function
C.It has lost all its organelles to make room for its nucleus
D.It has moved from the animal kingdom to the plant kingdom
- 9.
Sperm cells are attracted to the egg cell by a process called chemotaxis (moving toward a chemical). What part of the sperm cell is specialized to detect these chemicals?
A.The tail
B.The mitochondria
C.Specific receptors on the cell membrane of the head
D.The nucleus
- 10.
Spongy mesophyll cells are irregular in shape and have large air spaces between them. How does this specialization complement the work of the palisade cells?
A.It allows carbon dioxide to circulate and reach the palisade cells for photosynthesis
B.It provides a soft cushion for the palisade cells to rest on
C.It stores the sugar made by the palisade cells
D.It reflects light back up toward the palisade cells
Download the worksheet for Cells and Living Things - Specialized Cells to practice offline. It includes additional chapter-level practice questions.
Levels of Organization (Cells to Organisms)
SubtopicLevels of Organization (Cells to Organisms) under Cells and Living Things for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
Which statement is true about the levels of organization?
A.Organs are made of organ systems
B.Tissues are made of organs
C.Organisms are made of organ systems
D.Cells are made of tissues
- 2.
The urinary system is another name for which system that removes waste from the body?
A.Digestive system
B.Excretory system
C.Respiratory system
D.Circulatory system
- 3.
Which of the following would be found inside an organ?
A.Organ systems
B.Organisms
C.Tissues
D.Whole animals
- 4.
Which level of organization is represented by a group of similar nerve cells?
A.Nervous tissue
B.The brain
C.The nervous system
D.An organism
- 5.
Which of the following is an example of an organ in the human body?
A.The Bladder
B.The Excretory System
C.An Epithelial Cell
D.Muscle Tissue
- 6.
If you are looking at 'Connective Tissue' in a laboratory, you are looking at which level?
A.A level higher than an organ
B.A level higher than a cell but lower than an organ
C.The highest level of biological organization
D.The same level as a respiratory system
- 7.
Which of these is the simplest level of organization in a multicellular organism?
A.Organ
B.Organism
C.Cell
D.Tissue
- 8.
If we compare a 'city' to an 'organism', what would the 'individual workers' represent in the biological levels of organization?
A.Organs
B.Tissues
C.Cells
D.Systems
- 9.
Why does a multicellular organism need an organ system like the 'circulatory system'?
A.Because individual cells are too large to move
B.To transport materials to and from specialized cells that are far from the environment
C.To make sure every cell can perform photosynthesis
D.Because tissues cannot survive without being in a system
- 10.
A 'meristem' is a region in plants where cells actively divide. These similar cells working to grow the plant constitute a:
A.Cell
B.Tissue
C.Organ
D.Organ system
Download the worksheet for Cells and Living Things - Levels of Organization (Cells to Organisms) to practice offline. It includes additional chapter-level practice questions.