Terms in this set (29)
Cons of plants on land
-Keeping the zygote alive
-Moving from place to place
-Ultraviolet radiation is much higher
Plants vs. Animal Cells
-Contain chloroplast and a cell wall
-Plants have a large vacuole
-Only few cells are capable of dividing
-Many cells are dead
A rigid structure that surrounds the cell membrane and provides support to the cell
What are plant cell walls made of?
cellulose ( a chain of sugars)
What is cellulose formed from?
A long string of glucoses
channels through cell walls that connect the cytoplasms of adjacent cells
regions of rapidly dividing cells
3 types of plant cells
parenchyma, collenchyma, sclerenchyma
-primary walls that are thin & flexible, -lack secondary walls, -large central vacuole-metabolic functions, synthesizing and storing organic products, least specialized structurally
unevenly thickened primary cell walls but lack secondary cell walls
-Thick secondary cell wall
-Mature cells cannot elongate - usually dead and provide support for plant
make energy from sunlight
releases energy from sugar
major plant organelles
Nucleus, chloroplast, mitochondria, endoplasmic reticulum, vacuoles
A part of the cell containing DNA and RNA and responsible for growth and reproduction and cell division
Converts light energy into glucose in the process of photosynthesis.
Contains chlorophyll giving plants their green color.
Contains 2 membranes.
DNA in a ring.
Contains 2 membranes
Release energy from sugar
DNA in a ring
A sac inside a cell that acts as a storage area
Regulate cell volume
A system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids.
cellulose vs starch
Cellulose chains are twisted
Starch goes in one direction
Both made of chains of sugar
A unicellular organism that lacks a nucleus and membrane bound organelles
A cell that contains a nucleus and membrane bound organelles
extensions of epidermal cells, increasing the surface area of the root; increases the plant's ability to absorb water and minerals
Vascular bundle components
Collenchyma strands, phloem, lateral meristem, xylem, vessels (bigger), tracheids (smaller)
scattered vascular bundles
vascular bundles in a ring