Biology fall final review

Front

What phase is metaphase?

Back

Metaphase is the stage of cell division where chromosomes align in the middle of the cell before being separated into daughter cells.

Front

Why must cells of organisms go through cell division?

Back

Cells must go through cell division for growth, repair of damaged cells, and replacement of dying cells.

Front

What is a niche in an ecosystem?

Back

A niche is an organism’s role in an ecosystem, including how it gets its energy and nutrients, where it lives, and how it interacts with other organisms.

Front

What are the functions of lipids?

Back

Lipids store energy, provide insulation, and offer protection for organs.

Front

What is a keystone species?

Back

A keystone species is a species that has a greater impact on the ecosystem than its abundance would suggest.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

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 and genetic diversity.

Front

What is the significance of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.