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WorksheetsCFA REVIEW 7th
Total questions: 37
Worksheet time: 19mins
What are the basic building blocks of tissues and organs?
Cells
Atoms
Molecules
Compounds
What is the primary source of energy for most ecosystems?
Wind
Sunlight
Water
Soil
Which process is responsible for converting sunlight into chemical energy in plants?
Respiration
Photosynthesis
Fermentation
Digestion
What is the role of chloroplasts in photosynthesis?
Absorb water
Store nutrients
Capture sunlight
Release oxygen
Which of the following is a product of photosynthesis?
Carbon dioxide
Oxygen
Nitrogen
Methane
What is the main function of decomposers in an ecosystem?
Produce energy
Break down dead material
Capture sunlight
Store water
What is a food web?
A single food chain
A network of interconnected food chains
A diagram of energy flow
A list of all organisms in an ecosystem
What is the significance of trophic levels in an ecosystem?
They indicate the age of organisms
They show the flow of energy
They measure the size of organisms
They determine the speed of growth
Which of the following is an example of an inherited behavior?
Riding a bicycle
Speaking a language
A bird building a nest
Playing a musical instrument
What is the role of producers in an ecosystem?
Consume other organisms
Decompose organic material
Produce energy through photosynthesis
Store nutrients
What is the chemical reaction involved in photosynthesis?
Conversion of glucose to energy
Conversion of sunlight to chemical energy
Conversion of oxygen to carbon dioxide
Conversion of water to hydrogen
What is the importance of the carbon cycle in ecosystems?
It provides oxygen for respiration
It recycles nutrients
It regulates temperature
It supports photosynthesis
What is the primary function of organ systems in the body?
To store energy
To perform specific functions
To produce offspring
To absorb nutrients
What is the significance of data analysis in scientific research?
It helps in forming hypotheses
It provides evidence for conclusions
It generates new data
It eliminates errors
What is the role of sugars in photosynthesis?
They are a waste product
They store energy
They absorb sunlight
They release oxygen
What is the relationship between food webs and trophic levels?
Food webs are part of trophic levels
Trophic levels are part of food webs
They are unrelated
They are the same
What is the main purpose of ecosystems?
To provide habitats
To recycle nutrients
To support life
To produce energy
What is the role of nutrients in ecosystems?
They provide energy
They support growth
They absorb sunlight
They decompose material
What is the significance of conservation of matter in ecosystems?
It ensures energy flow
It maintains balance
It supports photosynthesis
It regulates temperature
What is the primary role of organ systems in multicellular organisms?
To perform complex functions
To store energy
To absorb nutrients
To produce offspring
What is the importance of the flow of energy between organisms?
It supports growth
It maintains balance
It drives evolution
It regulates temperature
What is the role of cells in tissues and organs?
To store energy
To perform specific functions
To absorb nutrients
To produce offspring
What is the significance of inherited behaviors in animals?
They are learned over time
They are passed down genetically
They are acquired through experience
They are developed through training
What is the role of ecosystems in the environment?
To provide energy
To support biodiversity
To regulate climate
To produce oxygen
What is the function of data analysis in scientific experiments?
To generate new data
To interpret results
To eliminate errors
To form hypotheses
What is the role of producers and decomposers in food webs?
Producers consume decomposers
Decomposers produce energy
Producers create energy, decomposers recycle nutrients
Decomposers store energy, producers recycle nutrients
What is the significance of cell basics in biology?
They explain complex functions
They form the foundation of life
They regulate temperature
They support photosynthesis
What is the role of photosynthesis in the carbon cycle?
It releases carbon dioxide
It absorbs carbon dioxide
It stores carbon
It decomposes carbon
What is the importance of understanding trophic levels in ecology?
They indicate organism size
They show energy distribution
They measure growth rate
They determine lifespan
In which part of the plant cell does photosynthesis take place?
Nucleus
Mitochondria
Chloroplast
Ribosome
How do trees obtain energy?
they produce food through photoynthesis
they eat grass
they absorb nutrients from decomposing pants and animals
they eat animals
Which choice correctly shows the gas input and output of plants during photosynthesis?
Input: Oxygen
Output: Carbon dioxide
Input: Water vapor
Output: Glucose
Input: Carbon dioxide
Output: Oxygen
Input: Light
Output: Water vapor
6CO2 + light + 6H2O --> 6O2 + Glucose
6CO2 + sugar + 6H2O -----> 6O2 + light
6O2+ light + 6H2O --> 6CO2 + Sugar
6CO2 + 6O2 + 6H2O --> Light+ Sugar
In which organelle does photosynthesis take place?
Nucleus
Mitochondria
Chloroplast
Ribosome
What is a reactant of the Calvin Cycle?
Oxygen
Glucose
Carbon dioxide
Water
Autotrophs
