Photosynthesis
What is a series of chemical reactions that convert light energy, water, and carbon dioxide into the food energy molecule glucose and give off oxygen.
Photosynthesis.
What is a series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP?
Cellular respiration
a plant's response to the number of hours of darkness in its environment
photoperiodism
what occurs when a portion of a plant develops into a separate new plant?
Asexual reproduction
where is pollen grain from?
male reproductive structure
what is the waxy covering produced by epidermal cells?
cuticle.
What does all organisms require to survive?
energy
What are substances that act as chemical messengers within plants?
Plant hormones
What is alternation of generation?
when the life cycle of an organism alternates between diploid and haploid generations.
what is the female reproductive structure of a seed plant
ovule
Most plants spear green because?
Any changes in an organism's environment that cause a response is called?
stimuli
T/F Auxin concentrate on the dark side of the plant's stem.
True
T/F When you look at a tree or a flower, you're seeing part of the plant's haploid generation.
Describe pollination
when pollen grains land on a female reproductive structure of a plant that is the same species as the pollen grains.
What is tropism?
a response that results in plant growth toward or away from a stimulus.
one of the first plant hormones discovered; cause increased plant growth;responsible for phototropism.
Auxins
Spores grow by a process called?
mitosis and cell division
embryo is developed from?
zygote
What are the three ingredients of photosynthesis? Give the formula of water and carbon dioxide.
water(H2), light, carbon dioxide (CO2).
What is the response of a plant to touch?
thigmotropism
stimulate the ripening of fruit, a gas that can be produced by fruits, seeds, flowers, and leaves.
Ethylene
what is the difference between diploid generation and haploid generation?
diploid - double chromosome
haploid - single chromosome
explain gymnosperm
plants that produce seeds without fruits. / "naked seed"