Biological molecules (Lowersixth Science Biology)

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Test your knowledge on atoms, symbols, and properties in biology!

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Biological molecules (Lowersixth Science Biology)


Froggy Jumps Biological molecules (Lowersixth Science Biology)Online version Test your knowledge on atoms, symbols, and properties in biology! by YAKILI LMS 1 What are enzymes? a Proteins that speed up chemical reactions b Carbohydrates that provide energy c Lipids that store energy 2 Which of these is a function of enzymes? a Increase temperature b Lower activation energy of reactions c Change reaction products 3 How are enzymes classified? a Based on the reactions they catalyze b By their size c By their color 4 Which class of enzymes breaks down proteins? a Lipases b Amylases c Proteases 5 What do oxidoreductases do? a Break down fats b Catalyze oxidation-reduction reactions c Build DNA 6 Which enzyme class includes amylase? a Isomerases b Hydrolases c Ligases 7 What is the primary role of ligases? a Break down proteins b Join two molecules together c Transfer electrons 8 Which enzyme class helps in DNA replication? a Hydrolases b Oxidoreductases c Ligases 9 What is the effect of enzymes on activation energy? a They decrease it b They increase it c They have no effect 10 Are enzymes specific to certain reactions? a No, they work on all reactions b Only in plants c Yes, they are highly specific 11 What is the systematic name of amylase? a Lipase b Maltase c Alpha-1,4-glucanase 12 What is the recommended name for the enzyme that breaks down starch? a Lipase b Protease c Amylase 13 Which enzyme has the systematic name 'Lactose beta-galactosidase'? a Sucrase b Maltase c Lactase 14 What is the recommended name for the enzyme that breaks down fats? a Lipase b Amylase c Protease 15 What is the systematic name of the enzyme that hydrolyzes proteins? a Amylase b Protease c Lipase 16 Which enzyme's recommended name is 'Sucrase'? a Lactase b Sucrose hydrolyzing enzyme c Maltase 17 What is the systematic name of catalase? a Hydrogen peroxide oxidoreductase b Oxidase c Peroxidase 18 Which enzyme is known as 'Urease' in systematic terms? a Urease b Urea amidohydrolase c Ureidase 19 What is the recommended name for the enzyme that converts glucose to fructose? a Isomerase b Fructose synthase c Glucose isomerase 20 What is the systematic name of the enzyme that breaks down cellulose? a Cellulase b Lactase c Maltase 21 ¿Qué son las enzimas? a Carbohidratos b Proteínas que aceleran reacciones químicas c Ácidos nucleicos 22 ¿Cuál es la función principal de las enzimas? a Acelerar reacciones químicas b Transportar oxígeno c Almacenar energía 23 ¿De qué están hechas las enzimas? a De carbohidratos b De proteínas c De lípidos 24 ¿Qué estructura tienen las enzimas? a Estructura en doble hélice b Estructura tridimensional c Estructura lineal 25 ¿Qué parte de la enzima se une a la sustancia? a Sitio de bloqueo b Centro de unión c Sitio activo 26 ¿Qué es el sitio activo en una enzima? a La región donde se une la sustancia b El extremo de la enzima c La parte que se rompe 27 ¿Qué afecta la estructura de una enzima? a La cantidad de agua b El pH y la temperatura c El color y el olor 28 ¿Qué sucede si la estructura de una enzima se desnaturaliza? a Pierde su función b Se vuelve más eficiente c Se convierte en ADN 29 ¿Las enzimas son específicas para ciertas reacciones? a Solo para reacciones de ADN b No, pueden catalizar cualquier reacción c Sí, son muy específicas 30 ¿Qué elemento es fundamental en la estructura de las enzimas? a Oxígeno b Hierro c Carbono 31 What do enzymes do to chemical reactions? a Speed them up b Slow them down c Stop them 32 Are enzymes specific to certain reactions? a Yes b Sometimes c No 33 Do enzymes get used up during reactions? a Sometimes b Yes c No 34 What is the shape of an enzyme's active site? a Random b Flat c Specific to the substrate 35 Are enzymes affected by temperature? a No b Yes c Rarely 36 Do enzymes work better at high or low pH? a At specific pH levels b At any pH c Only high pH 37 Can enzymes be reused multiple times? a No b Yes c Sometimes 38 Are enzymes proteins? a Carbohydrates b No c Yes 39 Do enzymes lower the activation energy of reactions? a Increase it b Yes c No 40 Are enzymes affected by inhibitors? a No b Yes c Rarely 41 What do enzymes do to chemical reactions? a Stop them b Slow them down c Speed them up 42 What energy do enzymes lower to help reactions? a Activation energy b Kinetic energy c Potential energy 43 What is enzyme specificity? a Enzymes target specific reactions b Enzymes work on all reactions c Enzymes change shape randomly 44 What is the role of free energy in reactions? a It determines if a reaction can occur b It is irrelevant c It slows down reactions 45 How do enzymes affect activation energy? a They do not change it b They increase it c They lower it 46 What is a key feature of enzyme specificity? a Substrates do not matter b Active site matches substrate shape c Active site is flexible 47 Which of these is true about enzyme catalysis? a It reduces the energy barrier for reactions b It consumes energy c It increases the energy barrier 48 What type of reactions do enzymes typically catalyze? a Nuclear reactions b Biochemical reactions c Physical reactions 49 What is the energy of activation? a Energy released during reaction b Energy stored in bonds c The energy needed to start a reaction 50 Why are enzymes specific to their substrates? a Because they are non-specific b Because of their size c Because of the shape of their active site

Biological molecules (Lowersixth Science Biology)

Froggy Jumps

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Biological molecules (Lowersixth Science Biology)Online version

by YAKILI LMS

What are enzymes?

Which of these is a function of enzymes?

How are enzymes classified?

Which class of enzymes breaks down proteins?

What do oxidoreductases do?

Which enzyme class includes amylase?

What is the primary role of ligases?

Which enzyme class helps in DNA replication?

What is the effect of enzymes on activation energy?

Are enzymes specific to certain reactions?

What is the systematic name of amylase?

What is the recommended name for the enzyme that breaks down starch?

Which enzyme has the systematic name 'Lactose beta-galactosidase'?

What is the recommended name for the enzyme that breaks down fats?

What is the systematic name of the enzyme that hydrolyzes proteins?

Which enzyme's recommended name is 'Sucrase'?

What is the systematic name of catalase?

Which enzyme is known as 'Urease' in systematic terms?

What is the recommended name for the enzyme that converts glucose to fructose?

What is the systematic name of the enzyme that breaks down cellulose?

¿Qué son las enzimas?

¿Cuál es la función principal de las enzimas?

¿De qué están hechas las enzimas?

¿Qué estructura tienen las enzimas?

¿Qué parte de la enzima se une a la sustancia?

¿Qué es el sitio activo en una enzima?

¿Qué afecta la estructura de una enzima?

¿Qué sucede si la estructura de una enzima se desnaturaliza?

¿Las enzimas son específicas para ciertas reacciones?

¿Qué elemento es fundamental en la estructura de las enzimas?

What do enzymes do to chemical reactions?

Are enzymes specific to certain reactions?

Do enzymes get used up during reactions?

What is the shape of an enzyme's active site?

Are enzymes affected by temperature?

Do enzymes work better at high or low pH?

Can enzymes be reused multiple times?

Are enzymes proteins?

Do enzymes lower the activation energy of reactions?

Are enzymes affected by inhibitors?

What do enzymes do to chemical reactions?

What energy do enzymes lower to help reactions?

What is enzyme specificity?

What is the role of free energy in reactions?

How do enzymes affect activation energy?

What is a key feature of enzyme specificity?

Which of these is true about enzyme catalysis?

What type of reactions do enzymes typically catalyze?

What is the energy of activation?

Why are enzymes specific to their substrates?