Differentiation (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are stem cells?
What are stem cells?
Unspecialized cells lacking adaptations
What two capabilities do stem cells possess?
What two capabilities do stem cells possess?
Divide by mitosis & self-renew/specialize
Why can mature erythrocytes not divide?
Why can mature erythrocytes not divide?
They lack a nucleus
How does the biconcave disc shape benefit erythrocytes?
How does the biconcave disc shape benefit erythrocytes?
Increases surface area for gas exchange
What does multipotent mean for bone marrow stem cells?
What does multipotent mean for bone marrow stem cells?
Can differentiate into several cell types
Approximately how many haemoglobin molecules does an erythrocyte contain?
Approximately how many haemoglobin molecules does an erythrocyte contain?
280 million
What are the granules in neutrophils?
What are the granules in neutrophils?
Lysosomes with hydrolytic enzymes
Why are these white blood cells called neutrophils?
Why are these white blood cells called neutrophils?
Granules show neutral staining properties
What does cambium produce toward the outside and inside?
What does cambium produce toward the outside and inside?
Phloem outside, xylem inside
What happens during xylem vessel formation?
What happens during xylem vessel formation?
Cells lose cytoplasm & deposit lignin