Africa Storyline Part 1 Test Review

Front

The four most common elements found in biomolecules are __________.

Back

Carbon, Oxygen, Nitrogen, Hydrogen

Front

What is an abiotic factor?

Back

An abiotic factor is a non-living component of an ecosystem that affects the survival of organisms, such as sunlight, water, and minerals.

Front

What do the arrows in a food chain or web represent?

Back

They show what direction the energy is flowing between organisms.

Front

What is a phylogenetic tree?

Back

A phylogenetic tree is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

Front

Which biomolecule contains your genetic information?

Back

Nucleic Acids

Front

Define biomolecules.

Back

Biomolecules are organic molecules that are essential for life, including proteins, nucleic acids, carbohydrates, and lipids.

Front

What role do proteins play in living organisms?

Back

Proteins serve as building blocks for cells, act as enzymes to speed up chemical reactions, and play a role in immune response.

Front

What are lipids and their function?

Back

Lipids are a group of hydrophobic molecules that include fats and oils, serving as energy storage, insulation, and making up cell membranes.

Front

What are carbohydrates and their primary function?

Back

Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen, primarily serving as a source of energy.

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.