1 Quaternary Structure-refers to the structure of a protein macromolecule formed by interactions between multiple polypeptide chains. 2  Each polypeptide chain is referred to as a subunit. 3  Proteins with quaternary structure may consist of more than one of the same type of protein subunit.
1 Set the plant in a water-proof container to protect your furniture. 2  Water the plant thoroughly when the soil surface is dry to the touch. 3  Discard any excess water which remains in the saucer after 10 minutes. 4  The bright colour of the bracts will remain longer if temperatures do not exceed 22Â°C.
1 Bushy ferns can be difficult to water. 2  Try using a watering can with a long spout to direct the water to the center of the plant. 3  Water generously, until it drains out of the bottom of the pot. 4  Bathrooms and kitchens are good environments for ferns because of all the running water.ere are a few pointers about their care: 1  Most ferns like an evenly moist soil with regular waterings. 2  Allowing the soil to dry out between waterings stresses these plants. 3  Bushy ferns can be difficult to water. 4  Try using a watering can with a long spout to direct the water to the center of the plant.