Revision term 1

• Science
• Lower Secondary (Key Stage 3)

Revision term 1

Year 9

What is the basic structural and functional unit of all living organisms?

1. Organism
2. Cell
3. Organ
4. Tissue

Which organelle is responsible for protein synthesis?

1. Ribosome
2. Nucleus
3. Mitochondria
4. Golgi Apparatus

Which structure regulates the movement of substances in and out of the cell?

1. Cytoplasm
2. Endoplasmic Reticulum
3. Cell Membrane
4. Lysosome

What is the site of cellular respiration in eukaryotic cells?

1. Nucleus
2. Chloroplast
3. Mitochondria
4. Vacuole

Which organelle contains genetic material and controls cell activities?

1. Vacuole
2. Peroxisome
3. Nucleus
4. Centriole

Which organisms can produce cellulose?

1. Plants
2. Bacteria
3. Algae
4. Fungi

What is the primary function of cellulose in plants?

1. Facilitating cellular respiration.
2. Providing structural support and rigidity to plant cells.
3. Promoting muscle contraction.
4. Acting as a neurotransmitter.

What is the main function of the cell wall in a plant cell?

1. Produces energy for the cell
2. Provides support and protection for the cell
3. Regulates movement of substances into and out of the cell
4. Stores genetic material of the cell

Which organelle is responsible for photosynthesis in plant cells?

1. Golgi apparatus
2. Nucleus
3. Mitochondria
4. Chloroplasts

What is the function of xylem cells?

1. Conducting photosynthesis
2. Producing flowers and fruits
3. Transporting water and minerals
4. Storing food and nutrients

Which specialized plant cell contains chloroplasts?

1. Guard cells
2. Palisade cells
3. Phloem cells
4. Root hairs

Which specialized plant cell absorbs water and nutrients from the soil?

1. Companion cells
2. Meristem cells
3. Root hairs
4. Vascular cambium

What is the function of red blood cells?

1. Digesting food
2. Producing hormones
3. Pumping blood to the heart
4. Transporting oxygen to body tissues

Which cell type is responsible for transmitting nerve impulses?

1. Nerve cells
2. Epithelial cells
3. Muscle cells
4. Fat cells

Which cell type is specialised for moving egg cells in the oviducts?

1. Epithelial cells
2. Skin cells
3. Liver cells
4. Bone cells

What is the function of muscle cells?

1. Carrying oxygen
2. Storing fat
3. Producing enzymes
4. Generating force and movement by contracting.

What is magnification?

1. The process of enlarging an object
2. The process of illuminating an object
3. The process of rotating an object
4. The process of reducing an object

What is the formula to calculate magnification?

1. Magnification = Object size / Image size
2. Magnification = Image size / Object size
3. Magnification = Image size x Object size
4. Magnification = Object size - Image size

What is the unit of magnification?

1. No unit (it is a dimensionless quantity)
2. Meter
3. Gram
4. Second

Which subatomic particle has a positive charge?

1. Electron
2. Neutron
3. Proton
4. Atom

What is the total number of protons and neutrons in an atom called?

1. Electron configuration
2. Valence electrons
3. Atomic number
4. Mass number

Which subatomic particle is located outside the nucleus of an atom?

1. Electron
2. Neutron
3. Proton
4. Atomic mass

What is the positively charged center of an atom called?

1. Electron cloud
2. Nucleus
3. Atomic radius
4. Atomic weight

Who proposed the plum pudding model of the atom?

1. J.J. Thomson
2. Ernest Rutherford
3. Niels Bohr
4. John Dalton

Who discovered the nucleus of the atom?

1. John Dalton
2. Niels Bohr
3. Ernest Rutherford
4. J.J. Thomson

Which scientist developed the planetary model of the atom?

1. Ernest Rutherford
2. John Dalton
3. Niels Bohr
4. J.J. Thomson

Who proposed the theory of atomic structure with electron shells?

1. John Dalton
2. J.J. Thomson
3. Niels Bohr
4. Ernest Rutherford

Which scientist is known as the father of modern atomic theory?

1. John Dalton
2. Ernest Rutherford
3. Niels Bohr
4. J.J. Thomson

Which property allows metals to be hammered into thin sheets?

1. Ductility
2. Malleability
3. Brittleness
4. Rigidity

Which property of metals allows them to conduct electricity?

1. Resistance
2. Thermal conductivity
3. Electrical conductivity
4. Insulation

Which property makes metals shiny and reflective?

1. Transparency
2. Luster
3. Opacity
4. Dullness

Which property makes metals solid at room temperature?

1. Volatility
2. High melting point
3. Low melting point
4. Gas state

Which property gives metals the ability to be stretched into wires?

1. Brittleness
2. Ductility
3. Malleability
4. Rigidity

Which of the following is a property of non metals?

1. High melting point
2. Low electrical conductivity
3. Malleability
4. Good heat conductivity

Non metals are generally ______ at room temperature.

1. Liquids
2. Plasma
3. Solids
4. Gases

Which of the following is NOT a property of non metals?

1. Low melting point
2. Dull appearance
3. Brittle
4. High density

Which of the following is a property of non metals?

1. Ductility
2. High conductivity
3. Brittleness
4. Malleability