Exploring Bacterial Cell Structures and Macromolecules

The video tutorial explores the dissection of a bacterial cell, focusing on its major structures and the macromolecules within. It covers proteins, nucleic acids, carbohydrates, and lipids, detailing their roles and structures. The tutorial explains the composition of proteins from amino acids and the structure of nucleic acids, including DNA and RNA, highlighting their elemental building blocks.

What type of cell are we examining in this dissection?

• Frog cell

• Plant cell

• Animal cell

• Bacterial cell

Which of the following is NOT a major macromolecule found in cells?

• Lipids

• Nucleic acids

• Vitamins

• Proteins

What are proteins primarily made of?

• Nucleotides

• Amino acids

• Fatty acids

• Monosaccharides

How many different amino acids are commonly found in proteins?

• 100

• 10

• 21

• 50

Which element is NOT part of the basic structure of an amino acid?

• Hydrogen

• Phosphorus

• Carbon

• Oxygen

Which amino acids contain sulfur and selenium?

• All except one amino acid

• All amino acids

• Only three specific amino acids

• None of the amino acids

Which macromolecule is responsible for catalyzing chemical reactions in cells?

• Lipids

• Carbohydrates

• Proteins

• Nucleic acids

What is the structural difference between DNA and RNA nucleotides?

• Both have uracil

• DNA has uracil, RNA has thymine

• Both have thymine

• DNA has thymine, RNA has uracil

Which of the following is NOT a nucleotide found in DNA?

• Adenine

• Guanine

• Thymine

• Uracil

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix