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WorksheetsTopic 2 definitions - Levels, cells, molecules and movement
Total questions: 27
Worksheet time: 14mins
What is the basic building block of all living organisms?
Organelle
Cell
Tissue
Organ
What is a specialised structure found inside a cell?
Organ
Tissue
Organelle
Cell
What are aggregations of tissues performing specific functions called?
Organs
Cells
Organ systems
Organelles
What are groups of organs that work together to form organisms?
Tissues
Organ systems
Cells
Organelles
What is a group of cells with a similar structure and function called?
Organ
Tissue
Organelle
Cell
What is the process by which a cell becomes specialised to its function?
Cell differentiation
Cell division
Cell respiration
Cell synthesis
What is a partially permeable barrier that surrounds the cell?
Cell wall
Cell membrane
Cytoplasm
Nucleus
What is an outer, structural layer that surrounds some cells?
Cell membrane
Chloroplast
Cell wall
Ribosome
What is an organelle which is the site of photosynthesis?
Mitochondria
Ribosome
Chloroplast
Nucleus
What is a jelly-like substance that contains all the organelles of the cell?
Cytoplasm
Nucleus
Ribosome
Chloroplast
What is an organelle which is the site of respiration?
Chloroplast
Mitochondria
Ribosome
Nucleus
What organelle contains the genetic material of the cell?
Ribosome
Chloroplast
Nucleus
Cytoplasm
What are organelles that are the site of protein synthesis?
Ribosomes
Mitochondria
Chloroplasts
Nuclei
What is an undifferentiated cell that can divide to produce many specialised cells?
Stem cell
Nerve cell
Muscle cell
Blood cell
What is the function of a vacuole in plant cells?
It stores cell sap and supports the cell.
It synthesizes proteins.
It transports nutrients.
It produces energy.
What is the role of the active site in an enzyme?
It binds to the substrate.
It stores energy.
It transports molecules.
It breaks down lipids.
What are amino acids?
Small molecules from which proteins are assembled.
Large molecules that store energy.
Catalysts that speed up reactions.
Sugars that provide energy.
What is the function of enzymes in living organisms?
They increase the rate of reactions.
They store genetic information.
They transport oxygen.
They provide structural support.
What is glycogen?
A large carbohydrate made from many glucose molecules.
A protein that speeds up reactions.
A lipid that stores energy.
A nucleic acid that stores information.
What are lipids made from?
Long fatty acid chains and glycerol.
Amino acids.
Glucose molecules.
Nucleotides.
What are proteins composed of?
Amino acids.
Fatty acids.
Glucose molecules.
Nucleotides.
What is starch?
A large carbohydrate molecule made up of many glucose molecules.
A protein that provides structure.
A lipid that stores energy.
A nucleic acid that stores genetic information.
What is active transport?
Movement of substances against the concentration gradient using energy.
Passive movement of substances down the concentration gradient.
Diffusion of water across a membrane.
Movement of gases in the lungs.
What does the concentration gradient refer to?
The difference in concentration between two areas.
The movement of water molecules.
The energy required for active transport.
The size of the cell.
What is diffusion?
The spreading out of particles from an area of higher concentration to lower concentration.
The movement of water molecules across a membrane.
The active transport of ions.
The synthesis of proteins.
What is osmosis?
The diffusion of water molecules across a partially permeable membrane.
The active transport of nutrients.
The breakdown of glucose.
The synthesis of lipids.
What does the surface area to volume ratio (SA:V) describe?
The size of the object compared with the amount of area that contacts the environment.
The concentration of solutes in a solution.
The energy required for active transport.
The rate of diffusion.
