Blood as a Tissue: Introduction and Functions

What is the main function of plasma in the blood?

Transport RBCs, WBCs, platelets, and hormones around the body; transport heat around the body.

How do Red Blood Cells (RBCs) adapt to transport oxygen efficiently?

Biconcave shape to allow maximum surface area; contains iron pigment haemoglobin.

What is the primary function of White Blood Cells (WBCs)?

To fight infection.

What is the main purpose of Platelets in the blood?

To clot the blood. Signup and view all the answers

How many blood groups are there, and what are they?

4 blood groups: A, B, AB, and O. Signup and view all the answers

What is the significance of the Rhesus factor in blood?

85% of Irish people have a rhesus factor on their RBCs. Signup and view all the answers

What is the function of red blood cells in the body?

Transport oxygen around the body. Signup and view all the answers

Where are white blood cells produced?

In the bone marrow. Signup and view all the answers

What is the main function of platelets in the blood?

To clot the blood. Signup and view all the answers

What is the significance of the Rhesus factor on red blood cells?

85% of Irish people have the Rhesus factor on their RBCs. Signup and view all the answers

How do red blood cells adapt to transport oxygen efficiently?

By having a biconcave shape and containing haemoglobin. Signup and view all the answers

What is the primary function of plasma in the blood?

To transport cells, hormones, and heat around the body. Signup and view all the answers

What is the main role of monocytes (macrophages) among white blood cells?

To engulf and destroy pathogens. Signup and view all the answers

Explain why blood transfusions must match the blood group of the recipient.

To prevent serious harm to the recipient. Signup and view all the answers

What is the function of white blood cells in the body?

To fight infection. Signup and view all the answers

What are the three main functions of plasma in the blood?

Transport RBCs, WBCs, platelets, and hormones; Transport heat around the body; Act as a solvent Signup and view all the answers

Explain the adaptations of red blood cells (RBCs) that allow them to efficiently transport oxygen.

Biconcave shape for maximum surface area; Contains iron pigment haemoglobin to carry oxygen; Flexible and doesn’t damage easily Signup and view all the answers

What is the primary function of white blood cells (WBCs) in the body?

To fight infection Signup and view all the answers

Describe the main functions of platelets in the blood.

To clot the blood; Reduce blood loss; Prevent entry of micro-organisms Signup and view all the answers

What is the significance of matching blood transfusions to the recipient's blood group?

To prevent serious harm to the recipient Signup and view all the answers

Explain the role of monocytes (macrophages) among white blood cells.

Produce antibodies; Engulf and destroy pathogens Signup and view all the answers

Why can't individuals with hemophilia form blood clots?

Due to the inability of platelets to clot the blood Signup and view all the answers

What is the function of the Rhesus factor on red blood cells?

Determines the presence or absence of a specific antigen on RBCs Signup and view all the answers

What are the two types of white blood cells and their primary functions?

Lymphocytes - produce antibodies; Monocytes (Macrophages) - engulf and destroy pathogens Signup and view all the answers

What made the Tokyo 2020 Summer Olympics stand out in terms of the number of events?

It introduced the most new sports in a single Olympic Games. (C) Signup and view all the answers

How did Tokyo 2020 aim to engage a younger audience with the Olympic Games?

By introducing events like BMX freestyle and 3x3 basketball. (B) Signup and view all the answers

What impact did the Tokyo 2020 Olympics have on COVID-19 infections according to a study by the National Center for Biotechnology Information?

Approximately 53,900 excess infections were associated with the Games. (A) Signup and view all the answers

How did the festive atmosphere and human interactions during Tokyo 2020 contribute to local COVID-19 transmission?

The festive atmosphere and interactions increased local-to-local transmission. (B) Signup and view all the answers

What aspect of organizational planning during the Tokyo 2020 Olympics was particularly highlighted despite the challenges posed by the pandemic?

The remarkable feat of planning showcased by the organizers. (D) Signup and view all the answers

What was a notable aspect of the Tokyo 2020 Playbooks?

Strict protocols for athletes and the media (B) Signup and view all the answers

Which athlete showcased remarkable dominance in track and field at the Tokyo 2020 Olympics?

Elaine Thompson-Herah (C) Signup and view all the answers

What was a key feature of the Tokyo 2020 Olympics' aftermath?

Cautious optimism (B) Signup and view all the answers

How did the Tokyo 2020 Olympics serve as a blueprint for future Olympic Games?

By setting a standard for large-scale event organization in a pandemic (B) Signup and view all the answers

What was one of the main takeaways from the Tokyo 2020 Olympics regarding global unity?

A sense of unity and solidarity despite challenges (C) Signup and view all the answers

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