BIOLOGY MCAT EXAM QUESTIONS AND ANSWERS

BIOLOGY MCAT EXAM QUESTIONS AND ANSWERS What are the characteristics of the angiosperms? of the fungi? of the algae? - Correct Answer️️ -a. Mostly fruit bearing and can produce seeds to reproduce; photosynthetic b. Fungi mostly rely on dead organisms (decomposer for an energy source) and use spores c. Mostly in water and can be both harmful and beneficial Crystals can increase in size and seemingly grow. Would you consider crystals to be living? - Correct Answer️️ -No, they do not fit all 7 characteristics of an organism What are the differences between monosaccharides, disaccharides, and polysaccharides? - Correct Answer️️ -Each tells how many sugar molecules are in there How do triglycerides and phospholipids differ in structure and function? - Correct Answer️️ -The phospholipids is hydrophobic because of absence of OH. Difference in structure because triglyceride has three lipid molecules bound to a glycerin molecule Define the following terms: simple sugar, starch, amino acid, and polypeptide. - Correct Answer️️ -Simple sugar- Carb made up of one or two molecules of sugar Starch- A carbohydrate Amino acid- An organic compound consigning of a carboxyl and amino group Polypetide- Made up of multiple amino acids What is the significance of the Cell Theory to biology? - Correct Answer️️ -It gives us the basic idea of where life could have all started. It also serves as a basis in medicine. List the parts of a plant cell, and for each part describe its structure and function. - Correct Answer️️ -Chloroplast- Helps in photosyntehsis Phopholipid bilayer- Facilitates what goes in and out of cell due to diffusion Cell wall- Encloses all other parts of the plant cell Describe the stages of mitosis. - Correct Answer️️ -Chromatin are split up and lined along the middle due to centromeres. And then spindles pull apart the chromosomes in order to lead to cytokinesis. Describe the similarities and differences between chloro- plasts and mitochondria. - Correct Answer️️ -They both help produce ATP, giving energy to the organism Differentiate between osmosis and diffusion. - Correct Answer️️ -Osmosis deals with water while diffusion deals with in or organic substan