Biology Classification and Cell Functions

A species is a group of populations that can freely interbreed and produce fertile offspring, but are reproductively isolated from other groups.

Classification helps organize dissimilar forms of life into meaningful groups based on evolutionary relationships and shared traits.

Classification is based on homologies, comparative biochemistry, cytology, and genetics.

<p>Living things are primarily divided into two kingdoms: plants and animals.</p> Signup and view all the answers

<p>It means that species do not exchange genes and have unique structural, ecological, and behavioral characteristics.</p> Signup and view all the answers

<p>Mitochondria primarily function as the powerhouse of the cell, generating ATP through cellular respiration.</p> Signup and view all the answers

<p>Enzymes act as catalysts that speed up biochemical reactions by lowering the activation energy required.</p> Signup and view all the answers

<p>The selective permeability of the cell membrane allows the cell to maintain homeostasis by controlling the movement of substances in and out.</p> Signup and view all the answers

<p>DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.</p> Signup and view all the answers

<p>Photosynthesis converts solar energy into chemical energy stored in glucose, while cellular respiration breaks down glucose to release that energy.</p> Signup and view all the answers