Biology Semester II Review 24-25

Front

What is an algal bloom?

Back

An algal bloom is a rapid increase in the population of algae in water bodies, often due to excess nutrients, which can lead to oxygen depletion and harm aquatic life.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert sugars and other carbon-based molecules into ATP (energy) in the presence of oxygen.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement predicting the relationship between variables, often formatted as 'IF [condition], THEN [result].'.

Front

How do plants and animals exchange gases?

Back

Plants take in carbon dioxide and release oxygen during photosynthesis, while animals take in oxygen and release carbon dioxide during cellular respiration.

Front

What does the Simpson’s Biodiversity Index measure?

Back

The Simpson’s Biodiversity Index measures the biodiversity of an area by considering both the number of species and their relative abundance.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

What is the role of nutrients in aquatic ecosystems?

Back

Nutrients like nitrogen and phosphorus are essential for plant growth but can cause problems like algal blooms when present in excess.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species, genetic diversity, and ecosystem diversity.

Front

What is the significance of ATP in cellular processes?

Back

ATP (adenosine triphosphate) is the primary energy carrier in cells, providing energy for various biological processes.