Quiz
Bioenergetics
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Questions in this quiz (8)
1Photosynthesis takes place in [blank_start]chloroplasts[blank_end] in [blank_start]plants[blank_end] and [blank_start]algae[blank_end]. It is [blank_start]endothermic[blank_end], meaning it [blank_start]requires[blank_end] energy. The source of the energy is [blank_start]sunlight[blank_end], which is trapped by the chemical [blank_start]chlorophyll[blank_end].
6[blank_start]CO2[blank_end]+[blank_start]6H20[blank_end] --> [blank_start]C6H12O6[blank_end]+6[blank_start]O2[blank_end]- Achloroplasts
- Bmitochondria
- Cplants
- Danimals
- Ealgae
- Fprotists
- Gendothermic
- Hexothermic
- Irequires
- Jreleases
- Ksunlight
- Lglucose
- Mchlorophyll
- Niodine
- O6H2O
- PC6H12O6
- QC6H12O6
- R6H2O
- SO2
- TCO2
- UCO2
- VO2
2Factors affecting the rate of photosynthesis:
CO2 [blank_start]concentration[blank_end]
T[blank_start]emperature[blank_end]
[blank_start]Light[blank_end] Intensity
[blank_start]Chlorophyll[blank_end] Concentration
At night, [blank_start]light intensity[blank_end] is the limiting factor.
In mineral deficient soil, [blank_start]chlorophyll[blank_end] is the limiting factor.
In warm and bright conditions, [blank_start]CO2[blank_end] is usually the limiting factor.
In winter, [blank_start]temperature[blank_end] is usually the limiting factor.
Glucose produced is used for:
R[blank_start]espiration[blank_end]
Glucose + Nitrogen --> [blank_start]proteins[blank_end]
C[blank_start]ellulose[blank_end]
fats and [blank_start]oils[blank_end] (usually in seeds)
[blank_start]starch[blank_end]- Aconcentration
- Bemperature
- CLight
- DChlorophyll
- Elight intensity
- Fchlorophyll
- GCO2
- Htemperature
- Iespiration
- Jproteins
- Kellulose
- Loils
- Mstarch
3Investigate the rate of photosynthesis using an [blank_start]aquatic[blank_end] plant (pondweed).
Change [blank_start]distance[blank_end] between pondweed and lamp and count [blank_start]bubbles per minute[blank_end]
IV- [blank_start]light intensity[blank_end]
DV- [blank_start]number of bubbles[blank_end]
light intensity = [blank_start]1[blank_end] / [blank_start]distance[blank_end]^2- Aaquatic
- Blarge
- Cdistance
- Dtime
- Ebubbles per minute
- Fseconds
- Glight intensity
- Hamount of oxygen produced
- Inumber of bubbles
- Jproximity to lamp
- K1
- L100
- Mdistance
- Nspeed of light
4Accuracy- [blank_start]how close a measure is to a true value[blank_end].
Reliability- ability of an experiment to [blank_start]produce consistent results[blank_end].
Validity- [blank_start]how appropriate an experimental method[blank_end] is at achieving the aim of an experiment.- Ahow close a measure is to a true value
- Bhow appropriate an experimental method
- Cproduce consistent results
5Organisms need energy for:
G[blank_start]rowth[blank_end]
C[blank_start]ontraction[blank_end]
H[blank_start]omeostasis[blank_end]- Arowth
- Bontraction
- Comeostasis
6Respiration is an [blank_start]exothermic[blank_end] reaction that supplies all energy needed to organisms.
In [blank_start]aerobic[blank_end] respiration, glucose reacts with [blank_start]oxygen[blank_end] in the [blank_start]mitochondria[blank_end] of cells to produce CO2, [blank_start]water[blank_end] and energy.
C6H12O + 6O2 --> 6CO2 + 6H20 (+ [blank_start]energy[blank_end])
In animals, [blank_start]anaerobic[blank_end] respiration happens when [blank_start]insufficient[blank_end] oxygen reaches the muscles during periods of intense activity. Glucose is not broken down completely, making it less efficient for [blank_start]transferring[blank_end] energy.
Glucose --> [blank_start]lactic acid[blank_end]
In plant and yeast cells, glucose is converted into [blank_start]ethanol[blank_end] and CO2. In yeast cells this is called [blank_start]fermentation[blank_end] and is used for the production of [blank_start]bread[blank_end] and alcohol.
Glucose --> [blank_start]CO2[blank_end] + ethanol- Aexothermic
- Baerobic
- Coxygen
- Dmitochondria
- Ewater
- Fenergy
- Ganaerobic
- Hinsufficient
- Itransferring
- Jlactic acid
- Kethanol
- Lfermentation
- Mbread
- NCO2
7[blank_start]Metabolism[blank_end] is all the chemical reactions that happen in an organism. These reactions include:
C[blank_start]onverting glucose[blank_end] (into starch in plants and [blank_start]glycogen[blank_end] in animals)
Making a[blank_start]mino acids[blank_end]
Making li[blank_start]pids[blank_end]
Breaking down excess [blank_start]proteins[blank_end]- AMetabolism
- Bonverting glucose
- Cglycogen
- Dmino acids
- Epids
- Fproteins
8Exercise increases the body's energy demands. Therefore rate of [blank_start]respiration[blank_end] must increase. Main responses are:
increased [blank_start]breathing[blank_end] rate
Blood vessels [blank_start]dilate[blank_end]
Increase in breath [blank_start]volume[blank_end]
Increased heart rate
[blank_start]Oxygen[blank_end] debt refers to the extra oxygen needed after exercise to [blank_start]oxidise lactic acid[blank_end] and remove it.
The role of the liver is to deal with the lactic acid. Blood flow through muscles transports the lactic acid to the liver where it is converted back into [blank_start]glucose[blank_end].- Arespiration
- Bbreathing
- Cdilate
- Dvolume
- EOxygen
- Foxidise lactic acid
- Gglucose
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- Description
- GCSE Biology Quiz on Bioenergetics, created by Naomi Wheeler on 03/10/2022.
- Author
- Naomi Wheeler
- Language
- English
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