Membrane Transport, Digestive & Respiratory Systems

Front

What is the role of oxygen in relation to food?

Back

Oxygen is used in the chemical reaction that releases energy from food.

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration.

Front

What happens to water molecules during osmosis when a cell is in a hypertonic solution?

Back

Water molecules move out of the cell, causing the cell to shrink.

Front

What organ is responsible for both chemical and mechanical digestion?

Back

The stomach.

Front

What are alveoli?

Back

Alveoli are tiny air sacs in the lungs that transfer oxygen into the bloodstream.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy.

Front

What is the function of the pancreas in digestion?

Back

The pancreas produces digestive enzymes and hormones, including insulin, which help in the digestion of food.

Front

What is the primary function of the respiratory system?

Back

The primary function of the respiratory system is to facilitate gas exchange, bringing oxygen into the body and removing carbon dioxide.

Front

What is the trachea?

Back

The trachea, also known as the windpipe, is the tube that connects the throat to the lungs, allowing air to pass through.