Question

1. 2 functions of plasma membrane proteins and explain why the specific functions you listed are important to a cell.

2. List 2 properties of water and describe how they benefit life.

3.Differentiate between a hypothesis, a guess, and a theory. Explain why it is important for non-scientists to understand how scientists use these terms

Answer 1

Plasma membrane proteins perform a huge variety of functions which are important for the survival of organisms. the main functions performed by membrane proteins are toto transport proteins membrane enzymes and a cell adhesion molecule.

Membrane receptor proteins are used to relay signals between the cells internal and external environment, these receptors are important to communicate between the cells environment for the survival of organisms.

Second is transport proteins which are used in moving molecules and ions across the membrane they can be categorised according to Transporter classification database. These proteins are important to transport the ions across the cell for their energetic performance.

2) a) Cohesion and adhesion:

Due to this property ascent if sap and capillary movement takes place; seeds swell and germinate.

b) Transparency:

This allows light to penetrate 300ml depth in seas and lakes. These helps plants to carry out photosynthesis under submerged conditions.

3) Hypothesis:

It is a primary tool in a research process. It intends to suggest new experiments and observations. It is an educated guess based on certain data, as an inception for further research.

Guess:

Guess is to say sometimes which might be true, they need to be proven by the experiments. It is less certain. When it gets proved it becomes a theory.

Theory:

It is a well substantiated lines which are proven through observations and experiments. It is based on a guess. They contain the proved facts.

It is important for a non scientific person to understand all these terms so that he will not get confused in all these terms and can understand easily the concepts.