Which structure is common to plant and animal cells? 

Part complete Molecules that have the same chemical formula (same numbers of each type of atom) but different three-dimensional shapes are called __________.

Which organelle is associated with ribosomes?

Plant cell walls consist mainly of __________. 

Which concept explains why mitochondria, nuclei, and chloroplast have double membrane?

In a fat, three fatty acids joined together by glycerol in known as a triglyceride.

Cholesterol are lipids characterized by a carbon skeleton consisting of four fused rings

Stanley Miller and Harold Urey designed an experiment on the nonliving synthesis for organic compounds to investigate the origin of life.

How many electrons must one carbon atom share with other atom or atoms to complete its valence shell? 

Which of the following organelles is found in plant cells only?