plants Flashcards
what is the green pigment in plants, that help with photosynthesis?
chlorophyll / chloroplast
define osmosis
the movement of water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration.
what happens in photosynthesis?
in photosynthesis, the plant, in particular leaves use sunlight, carbon dioxide and the water extracted from the root of the plant, to create oxygen, and let it out into the air and also to create glucose/starch. the food source for the plant.
what is starch?
starch is a long chain of glucose molecules joined together, and is a type of carbohydrate.
Plants’ leaves absorb energy from __________, which often comes from the Sun. What word completes the sentence?
light / sunlight
Which part of a plant is responsible for absorbing most of the water the plant needs?
the roots / root hair cells
Name the other important substance, besides water, that a plant absorbs using its roots.
minerals
the word equation for photosynthesis.
carbon dioxide + water —-> (light energy) = glucose + oxygen
which cells create a large surface area for maximum absorption of water?
root hair cells
finish the sentence. leaves have stomata….
..to allow carbon dioxide to diffuse in and oxygen to diffuse out.
what is respiration?
respiration is the chemical reaction where energy is released from the breakdown of glucose.
what is xylem?
xylem is a tube that helps water and minerals move around the plant. it is made out of dead cells
what is phloem?
phloem is a tube that transports the glucose produced in the leaves to the roots to store or use for respiration. it is made out of live cells.
where does respiration occur?
in plants and animals
finish the sentence. spongy cells allow..
…for diffusion of gasses through the leaf.
