Bio Exam 1 Review

Front

What is a pioneer species?

Back

A pioneer species is the first organism that colonizes an area after a natural disaster or disturbance, helping to establish a new ecosystem.

Front

Why do plants have different colors of pigments?

Back

Plants have different colors of pigments to harness a greater portion of the light spectrum for photosynthesis.

Front

What is an autotroph?

Back

An autotroph is an organism that produces its own food, typically through photosynthesis or chemosynthesis. Example: a rose.

Front

What is the function of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell, responsible for producing energy (ATP) through cellular respiration.

Front

What are carbohydrates?

Back

Carbohydrates are organic molecules made of carbon, hydrogen, and oxygen, serving as a primary energy source for living organisms.

Front

What is the role of chloroplasts in plants?

Back

Chloroplasts are organelles in plant cells that conduct photosynthesis, converting light energy into chemical energy.

Front

Define the term 'producer' in an ecosystem.

Back

A producer is an organism that can make its own food, typically through photosynthesis, and serves as a food source for other organisms.

Front

What is the difference between autotrophs and heterotrophs?

Back

Autotrophs produce their own food, while heterotrophs obtain food by consuming other organisms.

Front

What is the significance of the Golgi apparatus?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is the primary function of rough endoplasmic reticulum (Rough ER)?

Back

The rough endoplasmic reticulum is involved in the synthesis and processing of proteins, as it is studded with ribosomes.