MOCK YEAR 9 Biology Flashcards
Photosynthesis and Plants, Respiration and Food Chains
Where is Carbon Dioxide entered into the plant?
Stoma located on the lower epidermis of the leaf.
Give two adaptations to the root hair cells?
Large Surface Area and lots of mitochondria great for the energy for the active transport of water and minerals.
What are the three ingredients for Photosynthesis?
Carbon Dioxide Water and Light.
What happens to the rate of photosynthesis when the heat reaches the turning point?
Stops because enzymes die-off as the bonds between the enzymes breaks unable to work properly.
Why does the rate of photosynthesis level when the light intensity reaches MAX?
Requires more temperature of Carbon Dioxide or Temperature.
What’s in Fertilizer helps the plant grow?
Nitrogen phosphorus and potassium compounds
Why do marine plants die when the algae are formed?
The process can be outlined as follows: increased nitrates in the water increase the growth of algae and plants. the algae form a bloom over the water surface, preventing sunlight from reaching other water plants. these plants die because they are unable to carry out photosynthesis without light.
Why do leaves fall off in winter?
Deficient in light at this time of the year and the plant gets rid of the leaves it isn’t doing its jobs so all the nutrients and water is sent to the stem.
Whats transpiration?
The transportation of water and minerals up the xylem.
What does the nitrate do to a plant?
Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. … Without nitrates, the amount of chlorophyll in leaves reduces.
What’s the first thing in the food chain called?
Producer.
What’s Trophic Level mean?
The position of the animal in the food chain.
Whats a herbiovre?
A plant-eater only.
How much energy is passed on every animal?
Only 10%.
What do farmers use to stop animals eating plants?
Pesticides.
