Review part 1-Biology First Semester Final Exam 2024

Front

All living things rely on ___________ for energy.

Back

Producers are organisms that can make their own food through photosynthesis or chemosynthesis, serving as the primary energy source in an ecosystem.

Front

This macromolecule can store energy, make up membranes, and insulate your body.

Back

Lipids are a group of macromolecules that include fats, oils, and waxes, and are essential for energy storage and cellular structure.

Front

In a food chain, which organism is the primary consumer?

Back

The primary consumer is the organism that eats producers; in the example given, rabbits are the primary consumers as they eat grass.

Front

Fats, oils, and waxes are examples of this type of macromolecule.

Back

Lipids are macromolecules that are hydrophobic and play key roles in energy storage, insulation, and forming cell membranes.

Front

What happens when producers are dying off due to disease?

Back

The amount of snakes will decrease because they rely on rabbits (the primary consumers) for food, which in turn depend on producers.

Front

Define producers in an ecosystem.

Back

Producers are organisms, such as plants and algae, that produce their own food and are the foundation of the food chain.

Front

What role do consumers play in an ecosystem?

Back

Consumers are organisms that cannot produce their own food and rely on consuming other organisms (producers or other consumers) for energy.

Front

What are the three main types of consumers?

Back

The three main types of consumers are herbivores (primary consumers), carnivores (secondary and tertiary consumers), and omnivores (which eat both plants and animals).

Front

What is the function of lipids in living organisms?

Back

Lipids serve multiple functions including energy storage, forming cell membranes, and providing insulation and protection.

Front

Explain the term 'food chain.'

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.