Energy Flow
Muhtasari
Trace the energy in any meal back far enough and you arrive at the Sun. Almost every living thing is ultimately powered by sunlight, captured by plants and then passed from organism to organism before draining away into the surroundings as heat. Understanding this one-way flow explains why food chains are short and why producers are everywhere.
In this short lesson you will state that the Sun is the principal source of energy for biological systems, and describe how energy flows through living organisms, from sunlight to chemical energy and finally out to the environment.
Malengo
- State that the Sun is the principal source of energy input to biological systems
- Describe the flow of energy through living organisms, including light energy from the Sun and chemical energy in organisms, and its eventual transfer to the environment
Somo la Sauti
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Ramani ya mawazo
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Maelezo ya Somo
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Pata programu ya Green Bridge CBT kwenye simu au kompyuta yako kwa maktaba kamili ya IGCSE: mitihani ya miaka iliyopita, miongozo ya usahihishaji, ramani za mawazo, kadi za marudio na masomo ya sauti.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Energy Flow. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- The principal source of energy input to biological systems is the: A. soil B. Sun C. wind D. water Answer: B
- Plants convert light energy into chemical energy by the process of: A. respiration B. photosynthesis C. transpiration D. digestion Answer: B
- In which form is energy stored in a plant after photosynthesis? A. light energy B. chemical energy C. heat energy D. sound energy Answer: B
- What eventually happens to the energy that flows through a food chain? A. it is recycled back to the Sun B. it is transferred to the environment, mostly as heat C. it disappears completely D. it is stored forever in top predators Answer: B
- Energy flow through an ecosystem is best described as: A. a cycle B. a one-way flow C. stored without loss D. reversible Answer: B
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Fanyia kazi maswali haya kwenye programu
Vitabu Vinavyopendekezwa
Jifunze zaidi kutoka vyanzo huria
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Sehemu ya kitabu
Energy Flow through Ecosystems
Describe how organisms acquire energy in a food web and in associated food chains
"Biology: Energy Flow through Ecosystems" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/46-2-energy-flow-through-ecosystems. Access for free at https://openstax.org/books/biology/pages/1-introduction
Vimechapishwa na mashirika mengine chini ya leseni huria na vinatajwa kama wanavyoomba. Viungo hufungua tovuti zao.
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Energy Flow? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
