Structures & Functions
This is the "job" a plant part does to help the plant survive, grow, or reproduce.
Function
This female part of the flower contains eggs and later becomes fruit when fertilized.
Ovary
The tiny openings on leaves that take in carbon dioxide are called ______.
Stomata (stoma)
The plant system made of tubes that moves water and nutrients is called the ______.
Vascular system
A thick, waxy outer covering on leaves that helps prevent water loss is the ______.
Cuticle
Name one internal plant structure mentioned that helps a plant reproduce.
Ovary
The male part of the flower that makes pollen is called the ______.
Stamen
These green organelles in leaf cells capture sunlight and make food for the plant.
Chloroplasts
Which vascular tissue moves water up from the roots to the leaves?
Xylem
Name one external plant structure that helps protect the plant from animals.
Thorns, prickles, or bark
What protects many seeds and keeps them safe when they fall to the ground?
Tough seed coat or pit
What must happen for seeds to form after the pollen reaches the pistil?
Fertilization (after pollination)
List the three things a plant needs for photosynthesis.
Sunlight, carbon dioxide, water
Which vascular tissue moves sugars from the leaves to other parts of the plant?
Phloem
Explain why a cactus stem is larger than many other plant stems.
To store water so it can survive long and dry periods.
Why are petals considered external structures?
Because petals are on the outside of the flower and are visible (they are not inside the plant)
The __________ part of the flower contains a plant's female reproductive parts and receives pollen from transferred __________________.
Pistil
Stamen
How do leaf veins help the plant during photosynthesis?
Veins bring water to the cells and carry away sugars so photosynthesis can occur throughout the leaf
In one or two sentences, explain how xylem and phloem work together to help the plant.
Xylem brings water and minerals up from roots to leaves; phloem moves the sugars made in leaves to other parts of the plant so all parts get food
Name three ways seeds can spread.
Wind, water, animals
What is the difference between an external structure and an internal structure? Name an example for each.
External structures are the parts of a plant you can see on the outside, (like leaves, stems, roots, flowers). Internal structures are the parts that you can't see, inside the plant (like xylem, phloem, ovary, chloroplasts) that help the plant move materials, make food, protect seeds, or reproduce.
Name the sepal and explain its function in one sentence.
Sepal : a leaf-like part that protects the bud before it opens
Predict what would happen to a plant that does not have chloroplasts.
The plant would not be able to make food (sugar) and would likely die because chloroplasts carry out photosynthesis
How are xylem and phloem different? (HINT: Say which way each one moves materials.)
Xylem moves water upward from roots to leaves; phloem moves sugars in many directions
How does spreading seeds helps plants survive?
Spreading seeds helps plants survive by reducing competition and letting new plants grow in new places.