flash cards
(26 cards)
What is photosynthesis?
The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
Which organelle is primarily involved in photosynthesis?
Chloroplasts.
True or False: Photosynthesis occurs only during the day.
True.
Fill in the blank: The two main products of photosynthesis are _____ and _____ .
glucose, oxygen.
What is the primary pigment involved in photosynthesis?
Chlorophyll.
What are quadrats used for in ecological studies?
To measure the biodiversity or abundance of organisms in a specific area.
Multiple Choice: Which of the following factors does NOT affect photosynthesis? A) Light intensity B) Temperature C) Soil pH D) Carbon dioxide concentration
C) Soil pH.
What is biodiversity?
The variety of life in the world or in a particular habitat or ecosystem.
True or False: Higher biodiversity often leads to greater ecosystem resilience.
True.
What is the purpose of using quadrats in biodiversity studies?
To provide a systematic method for sampling and estimating species richness and abundance.
Fill in the blank: The formula for photosynthesis is _____ + _____ + light energy → glucose + _____ .
carbon dioxide, water, oxygen.
What is the significance of light in photosynthesis?
Light provides the energy required to convert carbon dioxide and water into glucose.
Multiple Choice: Which type of ecosystem typically has the highest biodiversity? A) Desert B) Rainforest C) Tundra D) Grassland
B) Rainforest.
What does ‘species richness’ refer to?
The number of different species represented in a given ecological community.
True or False: Biodiversity can be measured using quadrats.
True.
What role do plants play in the carbon cycle?
Plants absorb carbon dioxide during photosynthesis, helping to regulate atmospheric CO2 levels.
Fill in the blank: A _____ is a square or rectangular plot of land used to study plant and animal populations.
quadrat.
What is the relationship between photosynthesis and cellular respiration?
Photosynthesis produces glucose and oxygen, which are used in cellular respiration to produce energy.
Multiple Choice: Which of the following is a factor that can limit photosynthesis? A) Water availability B) Oxygen concentration C) Soil nutrients D) All of the above
A) Water availability.
What is a ‘keystone species’?
A species that has a disproportionately large effect on its environment relative to its abundance.
True or False: Biodiversity hotspots are regions with significant levels of biodiversity that are under threat from human activities.
True.
What method is commonly used to estimate plant density using quadrats?
Counting the number of individuals of each species within the quadrat.
Fill in the blank: The main gas that plants take in during photosynthesis is _____ .
carbon dioxide.
What is the impact of deforestation on biodiversity?
Deforestation leads to habitat loss, which can reduce biodiversity.
