Arrange the terms in each group in the correct order. Write them in a logical sequence beginning with the term that is underlined.
Palisade cells, CUTICLE, Upper epidermis, Spongy cells. (Begin with: Cuticle)
Topic: Internal structure of the leaf
Answer
Cuticle → Upper epidermis → Palisade cells → Spongy cells
The sequence traces the layers of a leaf from the OUTSIDE INWARDS, which is how a transverse section is always described: CUTICLE — the waxy waterproof coat on the very surface UPPER EPIDERMIS — the single protective layer of cells beneath it PALISADE CELLS — tall, closely packed, rich in chloroplasts; the main site of photosynthesis, placed near the top to catch the light SPONGY CELLS — loosely arranged with air spaces between them, allowing gases to diffuse
THE METHOD for any sequencing question: the underlined term tells you where to start, so identify the PRINCIPLE of the order from that first term. Cuticle is outermost, so the order must run outside to inside.