Transport In Animals

Heart- Pumps blood so that it can circulate around the body.
Artery- Carries blood away from the the heart.
Veins- Carries blood towards the heart.
Capillary- Tiny blood vessels. Only one-cell thick, hence enables the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and surrounding tissues.

How Root Hairs Absorb Water

Root Hairs absorb water by
-Osmosis
The soil has a higher water concentration than that in the root hair. Hence, water will move in from the soil to the root hair by osmosis.

How Root Hair Absorb Minerals

Root Hairs absorb minerals by
Diffusion
-Occurs when the concentration of mineral salts is higher than that in root hair.
Active Transport
-Occurs when the concentration of mineral salts is lower than that in root hair.
-Requires Energy

Transport In Plants 2

Xylem- Transport water and dissolved minerals from the root to the leaves.Found in Vascular plants.

Phloem- Transport sugar made in leaves by photosynthesis to other parts of the plants.

Transport In Plants

Root Hair- Root Hair absorbs minerals from the soil through diffusion and active transport. It also absorbs water from the soil through osmosis.

Leaf- Carbon dioxide diffuses into the leaf while oxygen diffuses out of the leaf through stomata during photosynthesis.

Transport In Unicellular Organism

Food, water and other food substances just diffuses in and out of the unicellular organism.

Osmosis

Osmosis is the movement of solvent molecules through a partially-permeable membrane into a higher concentration region to equalize the concentration on both sides.
Example: We feel thirsty after eating something salty.

Diffusion

Diffusion is the spread of particles through a random motion from regions of higher concentration to regions of lower concentration. Diffusion usually occurs in fluid because particles in fluid are far apart from each other.

Biojournal 2011

Transport In Living Things