Structure of Leaves
The single layer of tightly packed cells that covers the upper and lower surfaces of the leaf
What is the epidermis?
lactic acid
what acid makes you cramp?
The organ that pumps blood throughout the body
What is the heart?
Has sieve plates and carries organic molecules such as nutrients around the plant in a two way direction
What is the phloem?
Space between guard cells in the lower epidermis that allows CO2 to diffuse in the leaf and O2 to diffuse out
What is the Stomata?
a process that doesn't require oxygen
what is anaerobic?
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
what is active transport?
The blood vessel with thin valves, walls and a wide lumen. (carries blood to the heart)
What is the vein?
The process by which water enters the root hairs of plants.
What is osmosis?
Elongated cells containing chlorophyll
What is the palisade mesophyll layer?
ethanol and lactic acid
What are the products of anaerobic respiration?
The movement of water molecules down its concentration gradient through a semi-permeable membrane
What is osmosis?
The artery that supplies the heart with blood
What is the coronary artery?
The movement of water through a plant and into the air
What is transpiration/evapotranspiration?
a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.
What is chlorophyll?
to provide energy for carrying out all the life processes which are necessary to keep the organisms alive.
What is the purpose of respiration?
The movement of particles from a region of high concentration to a region of low concentration
What is diffusion?
the only artery that carries deoxygenated blood
What is the pulmonary artery?
Has dead cells in the outer walls and carries water and minerals in a one-way direction throughout the plant
What is the xylem?
Rounded cells with air spaces between them. contain few chloroplasts than the other layer
What is the spongy mesophyll layer?
Thin, moist, access to air,
What are the characteristics of gas exchange surfaces?
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
What is photosynthesis?
The blood vessel with thick walls, a small lumen and no valves. (carries blood away from the heart)
What is an artery?
a strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
What is a vascular bundle?