B11 UB (5) - The plant kingdom

What is the likely ancestor of land plants?

• Charophytes

• Proteobacteria

• Fungi

• Animals

True or False: Land plants form a clade

• True

• False

What adaptation to land did plants acquire first?

• Alternation of generations

• A cuticle

• Seeds

• Roots

What stage of a plant's life-cycle is diploid?

• All stages

• The gametophyte

• The sporophyte

• The photosynthetic stage

The gametophyte produces gametes by ___

• Meiosis

• Mitosis

• Conjugation

• Pollen transfer

Which of the following is not a reason that mosses are often found only in wet environments?

• They do not have a vascular system

• They have swimming sperm

• They do not have roots

• They do not have cuticles

What is the function of the cuticle?

• Reduce water loss from the epidermis

• Protect the plant from animals

• Open and close to allow carbon dioxide into the leaves

• Reproduction

What new adaptation do ferns have that mosses do not?

• Stomata

• Cuticle

• Alternation of generations

• Vascular system

A mosses life-cycle is dominated by the ___ stage

• Sporophyte

• Gametophyte

The fern life-cycle is dominated by the ___ stage

• Gametophyte

• Sporophyte