Biological Systems and Graphing Concepts

Flashcards covering key concepts of biological systems related to homeostasis, transport mechanisms, and basic graphing principles.

Osmoregulation is the process by which living organisms regulate the balance of and in their bodies.

water; solutes

The main filtration organ in the excretory/urinary system is the __.

kidneys

Hypertonic solutions cause cells to __ because they lose water.

shrink

In passive transport, substances move across the membrane __ the concentration gradient.

without using energy, following

Materials like starch are too large to pass through the cell membrane and must be __ before being absorbed.

digested (broken down)

Active transport requires __ to move substances against the concentration gradient.

energy (usually ATP)

The __ is a phospholipid bilayer that surrounds and protects the cell.

cell membrane

Feedback mechanisms help maintain __ during changes in the environment.

homeostasis

In graphing, the __ variable is plotted on the Y-axis.

dependent

An appropriate graph scale is important because an improper scale can __ in the data.

hide patterns or relationships

A negative feedback mechanism helps regulate body temperature by when it increases and when it decreases.

activating mechanisms (like shivering); cooling mechanisms (like sweating)