30 Questions
Which part of the plant forms a continuous layer of secondary xylem?
Stems
What is the process by which the plant body changes as it grows called?
Plant development
What are the newly added xylem tissues in the more mature part of the plant called?
Secondary xylem
What is the main reason why plants were able to survive on land?
Maintenance of cell water
How did plants adapt to obtain light in the terrestrial environment?
By growing taller and taller
What is the main function of the root system in plants?
Nutrient absorption
Where does gas exchange occur in plants that have adapted to land?
In the leaves
What type of tissue undergoes cell division to produce secondary xylem?
Meristematic tissue
What type of reproduction do plants perform on land?
Sexual reproduction
What allowed plants to acquire nutrients from the soil instead of water?
Development of specialized roots
Which structure in plants is responsible for carrying out sexual reproduction?
Flowers
What is the male sex organ in a flower called?
Anther
Where is the female sex organ located in a flower?
Ovary
What is the bag of liquid inside the ovules called?
Endosperm
What is the process called when pollen is placed on top of the female reproductive structure?
Pollination
What is the structure where the male and female gametes unite called?
Embryo sac
What is the first cell formed within the embryo sac called?
Zygote
What is the smaller daughter cell formed during the first cell division destined to become?
Mature embryo cell
What is the larger daughter cell formed during the first cell division called?
Suspensor
What is the developmental biologist called the embryo at the 1-cell stage?
Zygote
Which structure in plants is responsible for sexual reproduction?
Ovary
What is the male sex organ in plants called?
Anther
What is the process called when pollen is placed on the stigma?
Pollination
Where does fertilization occur in plants?
Ovary
What is the name of the structure where the embryo develops?
Embryo sac
What is the first cell formed after fertilization called?
Zygote
What is the function of the nucellus in the embryo sac?
Nutrient transport
What is the name of the first cell division in the zygote?
Embryogenesis
Which daughter cell in the first cell division becomes the mature embryo?
Apical daughter cell
What is the elongated zygote called at the 1-cell stage?
Zygote
Test your knowledge on the changes that occur in a plant's body as it ages and develops. Explore topics like vascular bundles, new tissue formation, and the addition of xylem tissues.
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