Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

1. Introduction to Biochemistry

Proteins

Biochemistry

1. Introduction to Biochemistry

Proteins

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Based on the results, which of the following best describes what protein X is?

A membrane receptor involved in signal transduction

A storage protein that binds and stores iron ions

A structural protein found in the extracellular matrix

An enzyme that catalyzes the conversion of substrate A to product B

Previous problemNext problem

Verified step by step guidance

Step 1: Begin by analyzing the function of protein X based on the description provided in the problem. Protein X is described as catalyzing the conversion of substrate A to product B, which is a hallmark characteristic of enzymes.

Step 2: Recall the definition of an enzyme. Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur. They are highly specific to their substrates.

Step 3: Compare the other options provided in the problem. A membrane receptor involved in signal transduction typically binds ligands and initiates signaling cascades, which is not described here. A storage protein binds and stores molecules like iron ions, and a structural protein provides support in the extracellular matrix. None of these functions align with the catalytic activity described for protein X.

Step 4: Consider the biochemical evidence provided in the problem. The conversion of substrate A to product B directly indicates enzymatic activity, as this is the primary role of enzymes in biochemical processes.

Step 5: Conclude that protein X is best described as an enzyme based on its function of catalyzing the conversion of substrate A to product B, which distinguishes it from the other options provided.