B5 Flashcards
What is a meristem area?
Meristems are areas in plants of unspecialised cells.
Where are the three main meristem areas usually located?
The tip of the shoot, the tip of the root and along the plant stem.
What accelerates plant growth?
Auxins.
What area of the plant can you usually find the most auxins?
In the shaded areas.
Groups of specialsed cells are called ____.
Groups of ____ form ____.
Groups of ____ are called ____ _____.
Tissue, Tissues, Organs, Organs, Organ Systems.
What is a plant’s response to light and what is this called?
The plant will grow towards light. It is called phototropism and is essential for survival.
When a plant is exposed to light from the west what happens to the auxins? What deos this do?
The auxins would move to the east side which would accelerate growth there, this would then cause the plant to grow towards the light.
A fertilised egg (____) divides by ____ to form the embryo.
Zygote, Mitosis.
At the eight-cell stage, all the cells are embryotic stem cells, what does this mean?
The cells are unspecialised and can form into any type of specialised cell.
There are however some adult stem cells, where are these commonly found?
Bone marrow and red blood cells.
In plants, only cells in meristems can divide by ____. These cells can then become any other type of cell.
Mitosis.
What are the two main transporting tissues in plants?
Xylem and Phloem.
How many daughter cells are produced via mitosis?
Two.
Each daughter cell is ______ _____ to the parent and to each other.
Genetically Identical.
Meiosis is the type of cell division that produces _____ (__ ___).
Gametes (sex cells).
