Biological Molecules
Muhtasari
Your body is a chemical factory. Every second, thousands of reactions build new molecules, break others apart, and release the energy that keeps you alive. The raw materials for all of this come from just three families of large biological molecule: carbohydrates, proteins, and lipids.
In this lesson you will learn what these molecules are made of, how to test for them in the laboratory, and how enzymes - the protein catalysts that run almost every reaction in your body - are affected by temperature and pH.
Malengo
- Identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils)
- Describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol
- Investigate food samples for the presence of glucose, starch, protein and fat
- Understand the role of enzymes as biological catalysts in metabolic reactions
- Understand how temperature changes can affect enzyme function, including changes to the shape of active site
- Investigate how enzyme activity can be affected by changes in temperature
- Understand how enzyme function can be affected by changes in pH altering the active site
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Biological Molecules. 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.
- Which elements are found in proteins but NOT in carbohydrates? A) Carbon and hydrogen B) Nitrogen and sulfur C) Oxygen and hydrogen D) Carbon and oxygen Answer: B
- What is the positive result when Benedict's solution is added to glucose and heated? A) Blue to purple B) Brown-yellow to blue-black C) Blue to orange/brick-red D) Blue to green only Answer: C
- Enzymes are described as biological catalysts. What does 'catalyst' mean? A) A substance that is used up during a reaction B) A substance that slows down a chemical reaction C) A substance that speeds up a reaction without being used up D) A substance that provides energy for a reaction Answer: C
- What happens to an enzyme at temperatures much higher than its optimum? A) It works faster B) It becomes denatured C) It dissolves D) It changes into a different enzyme Answer: B
- Lipids are made from which basic units? A) Amino acids B) Simple sugars C) Fatty acids and glycerol D) Nucleotides Answer: C
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Biological Molecules? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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