1(a)(i) The organelle labelled X controls the activities of the white blood cell - Edexcel - GCSE Biology Combined Science - Question 1 - 2021 - Paper 1
Question 1
1(a)(i) The organelle labelled X controls the activities of the white blood cell.
What is the name of organelle X?
A A mitochondrion
B ribosome
C chromosome
D nucleu... show full transcript
Worked Solution & Example Answer:1(a)(i) The organelle labelled X controls the activities of the white blood cell - Edexcel - GCSE Biology Combined Science - Question 1 - 2021 - Paper 1
Step 1
What is the name of organelle X?
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Answer
The correct answer is D nucleus. The nucleus controls the activities of the cell, including the white blood cell.
Step 2
Complete the sentences.
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Answer
Red blood cells contain the substance haemoglobin. Blood plasma is a liquid.
Step 3
Describe two ways that white blood cells protect the body from disease.
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Answer
White blood cells protect the body from disease in several ways:
Phagocytosis: White blood cells can engulf and digest pathogens, effectively removing them from the bloodstream and preventing infections.
Antibody Production: White blood cells, especially B lymphocytes, produce antibodies that immobilize and neutralize pathogens, aiding in their elimination and boosting immune response.
