Science Flashcards
Name a square frame used in biological sampling?
Quadrant
Name a line along which systematic sampling occurs?
Transect
Name any organism that photosynthesises at the start of a food chain?
Producer
What is the scientific name for burning?
Combustion
Name an organism in a food chain which consumes other organisms?
Consumer
Rain, sleet, snow, and hail are all examples of…?
Precipitation
Describe a change of state from liquid to a gas?
Evaporation
What is the variety of living organisms in an area called?
Biodiversity
Name a type of precipitation that is acidic due to air pollution?
Acid Rain
What name is given to clearing trees from an area which will then be used for other purposes?
Deforestation
Name a conservation method in zoos to breed captive animals together to increase numbers and the gene pool?
Breeding Programme
What is the total number of all organisms of the same species in an area?
Population
What is a group of different species living in the same area called?
Community
What is the contest between organisms for resources such as food and shelter?
Competition
Name the term that describes how species depend on one another?
Interdependence
What are the non-living parts of the environment called?
Abiotic Factors
What are the living parts of the environment called?
Biotic Factors
What is an organism that is not native to the environment?
Invasive Species
Describe the interaction between a community of living organisms and the nonliving components?
Ecosystem
A type of adaption based on physical features such as body shape?
Structural Adaptation
What is the minimum energy particles must have to react?
Activation energy
What is a substance that lowers activation energy and provides an alternate pathway?
Catalyst
Name molecules that act as catalysts in biological systems?
Enzymes
Name a system where substances cannot escape or enter?
Closed system
The term used to describe the forward and reverse reaction happening at the same rate?
Dynamic Equilibrium
Name a line drawn on a curve to identify the gradient?
Tangent
Name a piece of equipment used to collect gas products?
Gas syringe
Name an upside down piece of equipment used to measure gas production?
Inverted measuring cylinder
Name the store of energy found in moving objects?
Kinetic energy
What is the force acting over an area as a result of collisions between particles and the walls of their container?
Pressure
What is the number of particles dissolved in a solvent called?
Concentration
Name a substance with a very high surface area
Powder
What is the formula to calculate the volume of a regular object?
B x H x L
What is calculated from: Values added/ Total number of values?
Mean
Describe a straight section on a graph?
Linear
Describe a curved section on a graph?
Non-linear
Describe a graph which shows a linear relationship but does not go through the origin
Proportional
Describe a graph which shows a linear relationship and passes through the origin (0)?
Directly Proportional
Describe a graph which shows that when one variable increases, the other variable decreases, or vice versa?
Inversely Proportional
Name a piece of glassware that can be used for reacting chemicals together safely?
Conical Flask
What is the maintenance of a constant internal environment?
Homeostasis
Always a muscle or gland?
Effector
The brain and the spine are part of the …?
Central Nervous System
Name a group of cells which detect a stimulus and trigger electrical impulses?
Receptor
Name a neuron that carries electrical impulses to the central nervous system?
Sensory Neurone
Name a neuron that carries electrical impulses within the central nervous system?
Relay Neurone
Name a neurone that carries electrical impulses away from the central nervous system to the effector?
Motor Neurone
Name the gap between neurons?
Synapse
Name an automatic response that you do not think about?
Reflex Response
Name the pathway of neurons in a reflex action?
Reflex Action
Name a structure in the body that releases hormones?
Gland
Name the master gland that affects other glands in the body?
Pituitary Gland
Name a hormone that lowers blood glucose?
Insulin
Name a storage form of glucose stored in the liver?
Glycogen
Name a medical condition diagnosed in young people who do not purpose insulin?
Type 1 Diabetes
Name a medical condition diagnosed later in life preventing the person responding to insulin?
Type 2 Diabetes
Name a female sex hormone produced in the ovaries?
Oestrogen
Name a male sex hormone produced in the testes that controls puberty?
Testosterone
Name a process that causes the release of an egg from an ovary?
Ovulation
Name a method of contraception that prevents sperm from reaching an egg?
Barrier
