9.1 What is a Plant?

Name (Last, First)

Which structure helps support plants?

• chloroplast
• ribosome
• mitochondria
• cell wall

Which feature of the cell shown here is present only in photosynthetic organisms?

• mitochondrion
• central vacuole
• chloroplast
• cell membrane

Which of these does cellulose contain that strengthens it and makes it more rigid?

• lignin
• wax
• glucose molecules
• tubelike cells

Which is not a method of seed dispersal?

• wind
• water
• animals
• cars
• humans

How do mosses transport water and nutrients?

• through vascular tubes
• osmosis and diffusion
• absorption through leaves
• through tubular structures in their roots

Which structure is an adaptation that evolved from plants no longer being surrounded by water as they were long ago?

• cellulose
• cell wall
• cuticle
• seed coat

Which of the following is NOT a characteristic common to all plants?

• contains vascular tissue
• multicellular
• producers
• eukaryotic cells
• contains chloroplasts

How did the Earth's atmosphere change as land plants became more abundant?

• It became less polluted.
• It became richer in oxygen.
• It became richer in nitrogen and carbon dioxide.
• The air itself became lighter and easier to breathe.

What are the two ways that seed plants "package" their seeds?

• They are packaged, produced in pods.
• They are packaged, produced in their flowers and if they produce fruit will be in the fruit.
• They are packaged, produced in spores.
• They are packaged, produced in cones.
• They are packaged, produced in vacuoles.