Module 'A' Keystone Review

Front

What property of water allows ice to float?

Back

Low density in its solid state (ice floats) allows ice to float on water, providing insulation for aquatic life during winter.

Front

Why is photosynthesis important for cellular respiration?

Back

Photosynthesis provides the materials (glucose and oxygen) that fuel cellular respiration in plants and other organisms.

Front

How are channel and carrier proteins similar?

Back

Both allow for the flow of molecules into and out of a cell, facilitating transport across the plasma membrane.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the plasma membrane.

Front

What are lipids?

Back

Lipids are organic compounds composed mostly of carbon and hydrogen, insoluble in water, serving as a source of stored energy and a component of cell membranes.

Front

What is the role of adhesion in water?

Back

Adhesion allows water molecules to stick to other surfaces, which is important for processes like capillary action in plants.

Front

What is the significance of high surface tension in water?

Back

High surface tension allows small objects to rest on the surface of water and enables insects to walk on water.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, following the concentration gradient.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses channel or carrier proteins to help move molecules across the plasma membrane.

Front

What are carbohydrates?

Back

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