Functions of Proteins Flashcards

Questions and Answers

What is the function of Structure in proteins?

Chemical messengers

Recognize and combine with materials

Speed up chemical reactions

Support for tissues (correct)

What role does Signaling play in proteins?

Contract muscle fibers

Carry oxygen in blood

Send signals between cells (correct)

Preserve amino acids

What is the function of Defense in proteins?

Transport materials

Support for tissues

Recognize and combine with other materials (correct)

Speed up chemical reactions

What is the Transport function of proteins?

Binding to materials and carrying them around the body Signup and view all the answers

What do Contractile proteins do?

Allow movement by contracting muscle fibers Signup and view all the answers

What is the Storage function of proteins?

Preserve amino acids until needed Signup and view all the answers

What is the function of Enzymes in proteins?

Speed up the rate of specific chemical reactions Signup and view all the answers

Study Notes

Major Functions of Proteins

Structure
- Provides support for tissues and connects various body parts.
- Examples include collagen and keratin, essential for skin and hair structure.
Signaling
- Functions as chemical messengers that facilitate communication between cells.
- Important components include membrane proteins, serotonin (linked to mood), and hormones like insulin.
Defense
- Proteins that recognize and bind to foreign materials, playing a key role in the immune response.
- Immunoglobulins (antibodies) and various cell membrane proteins are critical in this function.
Transport
- Binds to specific substances, enabling their movement throughout the body.
- Hemoglobin is a primary example, transporting oxygen in the bloodstream alongside membrane transport proteins.
Contractile
- Proteins that allow for muscle contraction and movement by interacting with muscle fibers.
- Key proteins involved include actin and myosin.
Storage
- Acts to preserve amino acids until the body requires them, ensuring a reserve is available for various functions.
- Albumin found in egg whites is a notable example of a storage protein.
Enzyme
- Catalyzes specific chemical reactions, significantly increasing their reaction rates.
- Lactase is a well-known enzyme that breaks down lactose, facilitating dairy digestion.

Description

Explore the seven major functions of proteins through these flashcards. Each card focuses on a specific function such as structure, signaling, and defense, complete with definitions and examples. Perfect for students looking to master protein biology.