Life Processes 1 Test.

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Life Processes 1 Test.

Dear students, sharing with you Life Processes 1 Test. This will help you for preparing for board exam.

Q.1. (A) Choose and write the correct option:             (5 Marks)

  • Water content of Blood Plasma is ……………… .
    • 70%
    • 90%
    • 65%
    • 50%
  • In which part of cell, electron transfer chain reaction occurs?
    • Cytoplasm
    • Mitochondria
    • Nucleus
    • Golgi body
  • Which of the following protein is present in skin?
    • Haemoglobin
    • Insulin
    • Keratin
    • Ossein
  • In which stage the nuclear membrane completely disappears during nuclear division?
    • Prophase
    • Metaphase
    • Anaphase
    • Telophase
  • Number of chromosomes in diploid cell ………….. .
    • n
    • 3n
    • n/2
    • 2n

Q.1. (B) Answer the following (5Marks) Life Processes 1 Test.

  1. Find correlation –
  2. Carbohydrates: 4 Kcal of energy:: Lipids :……
  3. Glycolysis: EMP Pathway: : Tricarboxylic acid cycle :
  4. Name the following:

Three scientists who discovered process of glycolysis.

  1. State whether the following statements are true or false. Correct the false statements:

Only food stuff is sufficient for energy production.

  1. Fill in the blanks and explain the statement:

After complete oxidation of a glucose molecule … number of ATP molecules are formed.

Q.2. (A) Give scientific reasons (Any 2)    4 marks

  1. Fibres are one of the important nutrients
  2. Water is an essential nutrient.
  3. Krebs cycle is also known as citric acid cycle

Life Processes 1 Test.

Q.2. (B) Answer the following (Any 3)    6 Marks

  1. What would happen if:
  2. Soil with seeds is submerged under water during germination.
  3. There is insufficient amount of carbohydrates in body due to exceptional conditions like fasting and hunger.
  4. Explain glycolysis
  5. Distinguish between : Anaphase and Telophase
  6. Complete the chart

  1. Observe the figure and answer the following questions.

 

(a) Label the parts A and B.

(b) Identify the phase of cellular division.

(c) What phase comes before this phase?

(d) Define the term Karyokinesis.

Life Processes 1 Test.

Q.3. Answer the following questions (Any 5)              15 marks

  1. Explain the Metaphase and Telophase of Mitosis.
  2. What are proteins? What is their role in our body?
  3. How are the various processes occurring in the human body controlled? In how many ways?
  4. Explain with the help of a diagram – ATP is called as the energy currency of the cell.

  1. Name the processes A and B.
  2. What type of energy production is shown above?
  3. Give one point of difference between yeast cells and muscle cells in relation to the above process

     6. Complete the chart

  1. With the help of suitable diagrams, explain the five stages of prophase I of meiosis
  2. Complete the following diagram

Q.4. Answer in detail:

(1) With the help of suitable diagrams explain the mitosis in detail.

(2) Describe Anaerobic respiration.

Life Processes 1 Test.

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