The diagram below illustrates a biochemical process that occurs in organisms. What is another name for the substance labeled “catalyst”?  

Some unicellular organisms are motile (have the ability to move) and some are non-motile. Which cellular structures are associated with movement?  

Salivary amylase breaks down starch in your mouth. Amylase makes sure that the breakdown is accelerated. What is the term for a substance that speeds up the rate of a  chemical reaction?

Answer the question in the box below: Mention a renewable resource Mention a non-renewable resource

Identify the nucleolus

Some diseases are caused by the improper functioning of specific cellular organelles. A patient exhibited crowding inside the cells due to the accumulation of old cellular organelles and engulfed particles. Most likely, the symptoms were due to a faulty _____.

In the following food chain, which organism is at the third trophic level? grass → rabbits → snakes → hawks

What is a major difference between facilitated diffusion and active transport?

In which way are photosynthesis and cellular respiration different?

Plasma membrane proteins are manufactured at the _______ and then modified at the _______.