Final Answer:
lower epidermis — protects the leaf and contains stomata
upper epidermis — protects the leaf and is transparent to let light through
palisade layer — contains many chloroplasts; main site of photosynthesis
cuticle — waxy layer that reduces water loss
stomata — tiny openings for gas exchange (CO₂ in, O₂ out)
guard cells — surround each stoma and control its opening/closing
vein (vascular bundle) — transports water, minerals, and food (xylem and phloem)
spongy layer — allows gas exchange; has air spaces
air space — lets gases move between cells
xylem — carries water and minerals from roots upward
phloem — carries food (sugars) from leaves to other parts
chloroplasts — where photosynthesis happens (contain chlorophyll)
mesophyll — tissue between upper and lower epidermis; includes palisade and spongy layers
Parent Tip: Review the logic above to help your child master the concept of biology if8765 worksheet answers.
