WorksheetsBiology test
Total questions: 15
Worksheet time: 5mins
What is the role of amylase in digestion?
A. Breakdown of proteins
B. Breakdown of lipids
C. Breakdown of carbohydrates
D. Breakdown of nucleic acids
Where does the majority of nutrient absorption occur?
A. Stomach
B. Mouth
C. Small intestine
D. Large intestine
What is the main function of bile in digestion?
A. Neutralize stomach acid
B. Emulsify fats
C. Digest proteins
D. Break down carbohydrates
Which enzyme is responsible for breaking down proteins in the stomach?
A. Lipase
B. Pepsin
C. Amylase
D. Maltase
What is peristalsis?
A. Secretion of enzymes
B. Mixing of food with gastric juice
C. Wave-like muscle contractions that move food
D. Production of bile
What are enzymes?
a) Proteins that speed up chemical reactions
b) Lipids that catalyze biological processes
c) Carbohydrates involved in cellular metabolism
d) Nucleic acids responsible for energy production
Which of the following best describes the lock and key model of enzyme action?
a) Enzymes change shape to fit the substrate
b) Enzymes remain unchanged after catalyzing a reaction
c) Enzymes bond irreversibly to the substrate
d) Enzymes have specific active sites that bind to substrates
Where do competitive inhibitors bind on an enzyme?
a) Active site
b) Allosteric site
c) Co-factor binding site
d) Enzyme-substrate complex
Enzymes are highly specific. What does this mean?
a) They can catalyze any chemical reaction
b) They can only catalyze one specific reaction
c) They are not affected by temperature
d) They are not affected by pH changes
Фотосинтезийн химийн тэгшитгэлийг аль нь зөв илэрхийлж байна вэ?
А. С6Н12О6 = 2C2H5OH + 2CO2
В. 6H2O + 6 CO2 = С6Н12О6 + 6О2
С. С6Н12О6 + 6О2 = 6H2O + 6 CO2
D. С6Н12О6 = 2C3H6O3
Фотосинтезийн дүнд үүссэн глюкоз ургамалд ямар хэлбэрээр хадгалагддаг вэ?
А. Глюкоз
В. Өөх тос
С. Цардуул
D. Уураг
What is the primary function of red blood cells?
A. Transporting oxygen
B. Defending against infections
C. Clotting blood
D. Transporting nutrients
Which of the following vessels carries oxygenated blood?
A. Pulmonary vein
B. Pulmonary artery
C. Right atrium
D. Right ventricle
What is the main function of platelets?
A. Carrying nutrients to cells
B. Clotting blood
C. Carrying carbon dioxide to the lungs
D. Producing antibodies
Which of the following carries deoxygenated blood?
A. Aorta
B. Pulmonary vein
C. Pulmonary artery
D. Left atrium
