Plant Parts and Function Quiz

A sunflower stands tall and faces the sun all day. Which part of the plant is MOST important for keeping it upright?

• Roots only

• Stem only

• Roots and stem working together

• Leaves and flowers

A bean plant has a weak stem. What is the MOST likely problem it will face?

• It will stop producing seeds immediately

• It might droop and not get enough sunlight for photosynthesis

• Its flowers will turn bright red

• It will grow bigger roots to fix the problem overnight

Two plants grow side by side. One has long, thin leaves and the other has broad, flat leaves. What could be the reason for this difference?

• They grow in the same sunlight and water conditions

• They are pretending to be different for animals

• Their leaf shapes help them survive in their own environments

• The plant with broad leaves is older

Why do leaves have different shapes and sizes?

• To help the plant get sunlight and adapt to where it grows

• To make them look pretty for humans

• To store food for animals

• To make the plant taller

Why might a plant have wide leaves?

• To collect more sunlight in shady areas

• To make the plant heavier

• To scare away animals

• To store water in the stem

Why might a plant have thin or narrow leaves?

• To reduce water loss in hot, dry places

• To look different from other plants

• To make flowers grow faster

• To hold the plant up

Why might a plant have curved leaves?

• To trap water or reduce direct sunlight

• To be more beautiful

• To hold on to other plants

• To store seeds

Imagine a flower that is very bright and smells sweet. Which is the MOST likely reason for these features?

• To attract wind to pollinate it

• To attract insects and animals for pollination

• To store more sunlight

• To make more leaves

Some flowers are small and dull but make a lot of pollen. How do you think they get pollinated?

• By insects following the smell

• By animals eating them

• By wind carrying their pollen

• By the plant shaking itself

Fruits from different plants can be different in…

• Size, shape, and color

• Number of roots

• Number of leaves

• Type of stem