chapter 13, plants 🌺 Flashcards
What is made during photosynthesis?
Glucose is made during photosynthesis. Glucose stores energy.
How is energy released from glucose?
Energy is released using respiration when the plant’s cells need energy.
What do plants use glucose for?
Plants also use glucose to build new cells.
What happens when plants absorb more light energy?
The more light energy plants absorb, the more they photosynthesize and the more biomass they have.
What does plant biomass supply to herbivores?
Plant biomass supplies all the energy and building materials that herbivores need to grow, which then get passed down to carnivores.
What does respiration break down?
Respiration breaks down glucose. Uses oxygen. Exothermic- releases energy.
What is the function of chloroplasts in photosynthesis?
Chloroplasts produce glucose and release oxygen into the air. Endothermic- takes in light energy.
Where does photosynthesis take place?
Photosynthesis takes place in chloroplasts, which are in leaf cells. They take in carbon dioxide from the air, through the stomata.
How is water carried from the roots?
Water is carried from the roots through xylem vessels
Where does photosynthesis take place?
Photosynthesis takes place in chloroplasts
How is glucose stored?
Glucose is stored as starch
How does carbon dioxide enter the leaf?
Carbon dioxide enters the leaf through stomata on its underside
What is detected through iodine?
Starch is detected through iodine
It makes it turn into a dark bluish black colour
What is the independent variable?
The variable that you change. (always graphed on the x axis.)
What is the dependent variable?
The variable that you measure. (always graphed on the y axis.)
What is the controlled variable?
The variable that is constant, to make it a fair test.
What is hydroponics?
Hydroponics is a method of growing plants without soil, using nutrient-rich water solution.
Where do plants take in essential minerals from?
Plants absorb essential minerals from the soil to support their growth and development.
What is the function of nitrogen in nitrates?
Makes protein to build new cells
Nitrogen in nitrates makes protein to build new cells.
What is the function of potassium?
Used during photosynthesis and respiration
Potassium is used during photosynthesis and respiration.
What is the function of phosphorus in phosphates?
Involved in energy transfer during photosynthesis and respiration
Phosphorus in phosphates is involved in energy transfer during photosynthesis and respiration.
What is the function of magnesium?
Used to make chlorophyll
Magnesium is used to make chlorophyll.
what is phytoextraction?
the process of using plants to absorb toxic metals from water and soil
what are hyperaccumulators
plants that can survive in polluted spils
where are metals stored in plants?
vacuoles
what is arsenic used for
Solar panels
what are the male parts of a flower called? And wgat are the different parts and their functions?
they are called stamens. That includes the anther that produces pollen which carries male sex cells. Amd a filament which keeps the anther in a good position.
what are the female parts of a flower called? What are the different parts and theur functions.
they are called carpel. thos includes the ovary, which carries ovules that contain female sex cells. Above the ovary is a stigma which catches pollen. The style seperates the stigma and the ovaries.
what are gametes?
the male and female sex cells of a plant
what is pollination?
the process of pollen moving from a stamen to a stigma
what are the features of insect pollinated plants?
bright petals, scents, and sweet nectar.
what are the features of a wind pollinated plant?
their pollen is light and small, and their stamens and feathery stigma stick out to catch the wind
what is the process of fertilisation?
a pollen grain sends a pollen tube down through the style to an ovule. The male gametes nucleus moves down the tube and enters an egg cell, and fuses eith is nucleus. The fertilised egg grows into an embryo and the ovule produces a seed to protect it. The ovary forms a fruit arpund it.
What part do animals play in speed dispersal?
some seeds stick to animals feet or hook onto their fur. Other times, when fruits are eaten, the bigger seeds are thrown out and the smaller seeds come out through their faeces
