Question

Please solve these assertion reasons questions and send correct answer. ​

Answer 1

Answer:

At least 17 elements are known to be essential nutrients for plants. In relatively large amounts, the soil supplies nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur; these are often called the macronutrients. ... Carbon and oxygen are absorbed from the air while other nutrients are absorbed from the soil

Answer 2

Q1 - b

Q2- a

Q3-a

Q4-c

Q5-c

Q6- d

Q7-b

Q8-c

Q9-a

Q10-a

Explanation:

• 1)plants lack excretory organ, this is true. plant absorbs essential nutrient, it is also true. however plants release out certain excretory material through stomata in leaves. So, assertion and reason are true but reason is not correct explanation of assertion.
• 2)In anaerobic respiration glucose is not fully metabolized because in absence of oxygen TCA cycle cannot be performed. therefore pyruvic acid metabolized into alcohol instead of acetyl co A. so both A and R are true. and R is the correct explanation of assertion
• 3)There is no need of specialized respiratory organ for the plant because plant does not have great demand of gaseous exchange. and there is a little transport of gases from one part to another. so both A and R are true and R is correct explanation of A.
• 4)Bile is essential for emulsification and absorption of lipid in small intestine. it contain mainly bile salt, water, bile acid and cholesterol.so the A is true but R is false
• 5)Carbohydrate digestion takes place mainly in small intestine by pancreatic enzyme amylase. lactase is produced by intestinal cell. so, A is true but R is false.
• 6) Aerobic respiration require more energy as more ATP formation take place in presence of oxygen where anaerobic respiration  require less energy i.e. less ATP formation in absence of oxygen. Mitochondria is powerhouse of the cell as ATP formation takes place by oxidative phosphorylation. so A is false but R is true
• 7)Arteries carry oxygenated blood from heart to the entire body. Blood flows within artery under high pressure. in order to withstand  the pressure , arteries have thick and elastic wall. so A and R are true and R is not correct explanation of A.
• 8)Human heart is four chambered to prevent the mixing of oxygenated and deoxygenated blood. Vane cava is a vein that carry deoxygenated blood from whole body to the heart. so A is true but R is false
• 9)energy is obtained in the form of ATP in mitochondria and this ATP is required for cellular activities. so A and R are true and R is correct explanation of A.
• 10)Cartilage are flexible tissue that support trachea and prevent their collapse when air is not passing through it. so both A and R are correct and R is correct explanation of A.