Tissues, Organs, and Organ Systems (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 is a tissue in a multicellular organism?
What is a tissue in a multicellular organism?
A group of cells with a particular function
Why are squamous epithelial cells flattened in shape?
Why are squamous epithelial cells flattened in shape?
To shorten the diffusion pathway
Where is ciliated epithelium found in animals?
Where is ciliated epithelium found in animals?
In the trachea and oviduct
What cells produce the extracellular matrix in cartilage?
What cells produce the extracellular matrix in cartilage?
Chondrocytes
What provides flexibility in cartilage tissue?
What provides flexibility in cartilage tissue?
Elastin fibres
What are the contractile proteins in myofilaments?
What are the contractile proteins in myofilaments?
Actin and myosin
Why are xylem cells dead at maturity?
Why are xylem cells dead at maturity?
Cytoplasm would obstruct water transport
Which xylem cells have the sole function of providing support?
Which xylem cells have the sole function of providing support?
Fibres
What feature of companion cells suggests they play an active role in phloem transport?
What feature of companion cells suggests they play an active role in phloem transport?
Large numbers of mitochondria & ribosomes
What is an organ?
What is an organ?
A group of different tissues working together