Biology
4.0 / 5 based on 1 rating
- Created by: Bunter
- Created on: 13-05-13 09:51
What is the equation of phototsynthesis?
carbon dioxide + water (+light energy)---------> glucose + oxygen
1 of 29
What happens during the process of photosynthesis?
Light energy is absorbed by the chlorophyll in chloroplasts. This energy is then used to convert carbon dioxide from the air and water into glucose. The chemical reaction also produces oxygen as a by product. The gas ijs released into the air.
2 of 29
What happens to the glucose produced during photosynthesis?
It is either used immediatley by the cells of a plant or converted into a insoluble starch and stored
3 of 29
What are the adaptations of a leaf?
Most have a large surface area for light to fall on. They contain chlorophyll in chloroplasts to absorb light energy. They have air spaces to allow carbon dioxide to get to the cells and oxygen to le\ave but diffusion. They have veins, which bring
4 of 29
Where do algal plants get carbon dioxide?
In the water around them
5 of 29
What is a limiting factor?
A factor which limits the rate of a reaction
6 of 29
What are the limiting factors?
Light, Temperature, Carbon dioixde levels
7 of 29
How is light a limiting factor?
The brigther the light , the faster the rate of photosynthesis
8 of 29
How is Temperature a limiting factor?
Tempertaure rises the rate of photosynthesis increasing the raction speeds. But photosynthesis is controlled by enzymes. Most enzymes are denatured at 40C
9 of 29
How is Carbon dioxide a limiting factor?
Carbon dioxide levels will increase the rate of photosynthesis. Carbon dioxide levels around a plant tend to rise at night. Because in the dark a plant respires but doesn't photosynthesis.As the light and temperature increases all the C20 is used up
10 of 29
How is gluocse broken down?
It is broken down using oxygen to provide energy for the cells. Carbon dioxide is a waste product of the reaction.
11 of 29
What is the energy in respiration used for?
To build up smaller molecules into biggermolecules. Some of the glucose is changed into strach for storage. Gluocse is also used for complex carbohydrates like cellulose. They stregthen the cell walls.
12 of 29
How do planst produce protein from glucose?
They use glucose to produce amino acids, this is done by combing sugars with nitrate ions and other minerals ions from the soil. These amino acids are then built up into proteins to be used in cell, it uses energy from respiration.
13 of 29
Why do plants produce strach?
It is soluble in water, has no effect on the wate balance of the plant, meaning plants can store large amounts of starch in their cells.To produce tubers to help them survive over the winter
14 of 29
What is a nitrate ion?
Ions which are needed by plants to make proteins
15 of 29
What ate mineral ions?
Chemical needed in amounts as part of a balanced diet to keep the body healthy
16 of 29
What are tubers?
Modiefied part of a plant which is used to store food in the form of strach
17 of 29
What are polytunnels?
Large green house made of plastic
18 of 29
WHat are the advangtages of polytunnels?
They are much more controllable than outside, the atmosphere is warmer, can produce fruit and vegetable all year around.
19 of 29
What are hyrophonics?
Growing plants in water enriched by mineral ions rather than soil
20 of 29
What are the factors that effect living organisms?
Temperature, Nutrients, Amount of light, Availibility of water, availibility of oxygen and carbon dioixde
21 of 29
What is Aerobic respiration equation?
glucose + oxygen --> carbon dioxide + water (+energy)
22 of 29
What is Aerobic respiration?
Breaking down food using oxygen to release energy needed for the cells
23 of 29
What are the reasons for respiration?
Living cells need to caryy out the basic functions for life - building and breaking down molecules. Making muscles contract and maintaing constant body temperatures.
24 of 29
Where do most of the aerobic respiration reactions take place?
In the mitochondria
25 of 29
What is the mitochondria?
Tiny rod shaped organelles that are found in all plant and animal cells, they have a foled inner membrane. This provides a large surface area for the enzymes involved in aerobic respiration
26 of 29
QHta do muscles store glucose as ?
Glycogen
27 of 29
What is Glycogen?
Carbohydrate store in animals, including the mucles, liver and brain of the human body
28 of 29
What is the body's response to exercise?
When exercise, amny muscles start contracting, as a result they need more glucose and oxygen supplied to their bodies.During exercise muscles also produce carbon dioxide. The heart rate also increases as well as breathing rate and arteries dilate
29 of 29
Other cards in this set
Card 2
Front
What happens during the process of photosynthesis?
Back
Light energy is absorbed by the chlorophyll in chloroplasts. This energy is then used to convert carbon dioxide from the air and water into glucose. The chemical reaction also produces oxygen as a by product. The gas ijs released into the air.
Card 3
Front
What happens to the glucose produced during photosynthesis?
Back
Card 4
Front
What are the adaptations of a leaf?
Back
Card 5
Front
Where do algal plants get carbon dioxide?
Back
Related discussions on The Student Room
- a levels »
- Which A-Level Biology should I do? Edexcel A/B »
- Does UCL accept Human biology A level ? »
- How hard is it to get a 7 in IB HL Biology? »
- A level chemistry for a biology degree? (help please!!) »
- Should I do Chemistry or Biology A-level? »
- How to get into marine biology »
- GCSE Biology Study Group 2022-2023 »
- I can't decide between two degree options. »
- How much Maths in Biology and Psychology A Level? »
Similar Biology resources:
1.0 / 5 based on 1 rating
1.0 / 5 based on 1 rating
1.0 / 5 based on 1 rating
2.0 / 5 based on 2 ratings
1.0 / 5 based on 1 rating
1.0 / 5 based on 1 rating
2.5 / 5 based on 3 ratings
1.0 / 5 based on 2 ratings
1.0 / 5 based on 1 rating
3.0 / 5 based on 1 rating
Comments
Report