biology Flashcards
Palisade cells often arranged broadside on
chlorophyll as possible to the sun
how are plants adapted to obtain water?
water is obtained from the soil, it is absorbed by the roots of the plants n carried up by the xylem vessels. from there it travels to the mesophyll cells by osmosis
lactase breaks down lactose to glucose to
galactose
maltase breaks down maltose to
glucose
no chloroplasts in epidermal cells
to allow for sunlight to penetrate to the mesophyll layer
palisade cells arranged end on
to keep as few cell walls between the sun and the chloroplasts
pancreatic juice contains enzymes what are they ?
amylase, trypsin, lipase
stomata in the lower epidermis
to allow co2 and to diffuse in and o2 to diffuse out
the arrangement of the stomata on the lower surface contributes to efficient carbon dioxide uptake how ?
Word Bank- smaller, water vapor, increasing conservation
the epidermis cells do contain chloroplasts? true or false
false
the guard cells are the only cells in the epidermal layer which contain chloroplast. True or False
true
Thinness in a plant?
to allow sunlight to penetrate through all cells. To allow co2 and o2 to diffuse out asap
three parts of the small intestine
ileum, duodenum, jejenum
vitamin c deficiency
scurvy
vitamin d deficiency
rickets
what are cilia
are hair like projections, like brooms, they waft out bacteria and dust
what do the xylem vessels do
they transport water through their large thick walls
what is a trophic level
the number of stages in a food chain between the feeder and the sun
what is the function of the epidermis
to protect the inner layers of cells in the leaf
where does photosynthesis occur
in the chloroplasts
where does respiration occur
in the mitochondria
where is bile made
liver
where is bile stored
bile is stored in the gallbladder
which cells need the most carbon dioxide
the meophyll cells
which of these have no function (gallblader or caecum)
the caecum
why is it more important ot breathe out of your nose
because the air becomes warm,moist and filtered before reaching your lungs.
