Here is the step-by-step solution to your homework assignment.
1. Blood Donation Compatibility Table
To fill out this table, we need to remember two main rules:
*
The Donor (Left side): Determines what antigens are being given.
*
Type O has no antigens, so it can go to anyone (Universal Donor).
*
Type AB has both A and B antigens, so it can only go to people who already have both (Type AB).
*
The Receiver (Top side): Determines who can accept the blood.
*
Type AB has no antibodies against A or B, so they can receive from anyone (Universal Recipient).
*
Type O has antibodies against both A and B, so they can only receive from Type O.
The Completed Table:
| DONOR \ Receiver | A | B | AB | O |
| :--- | :---: | :---: | :---: | :---: |
|
A |
YES | NO |
YES | NO |
|
B | NO |
YES |
YES | NO |
|
AB | NO | NO |
YES | NO |
|
O |
YES |
YES |
YES |
YES |
*(Note: In a real medical setting, Rh factor (+/-) matters too, but for Grade 9 general biology, we usually assume Rh compatibility or focus only on the ABO system as shown above.)*
---
2. Which blood group is the:
Based on the table above:
*
a. Universal donor: This is the row that has "YES" for every receiver. That is
Type O.
*
b. Universal recipient: This is the column that accepts "YES" from every donor. That is
Type AB.
---
3. Complete the sentences
We need to choose the correct action words:
donate (give) or
receive (take).
*
a & b. The "universal donor" is the only blood type that can
donate blood
to any other blood group.
*(Reasoning: Donors give blood TO receivers.)*
*
c. The universal recipient is the only blood group that can
receive blood
from any other blood group.
*(Reasoning: Recipients take blood FROM donors.)*
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Final Answer:
1. Table Completion:
*
Row A: YES, NO, YES, NO
*
Row B: NO, YES, YES, NO
*
Row AB: NO, NO, YES, NO
*
Row O: YES, YES, YES, YES
2. Identification:
* a.
O
* b.
AB
3. Sentence Completion:
* b. ...can (
donate) blood (
to) any other blood group.
* c. ...can (
receive) blood (
from) any other blood group.
Parent Tip: Review the logic above to help your child master the concept of blood group worksheet.
