Biology Practice Question and Answer

Q:

The endoplasmic reticulum was discovered?

1175 0

  • 1
    Porter
    Correct
    Wrong
  • 2
    Darwin
    Correct
    Wrong
  • 3
    Huxley
    Correct
    Wrong
  • 4
    Purkinje
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Porter"

Q:

H.Y.V. refers to – 

1030 0

  • 1
    High Yielding Variety
    Correct
    Wrong
  • 2
    Human Yellow Vaccine
    Correct
    Wrong
  • 3
    Hybrid Yielding Variety
    Correct
    Wrong
  • 4
    Human Yellow Virus
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "High Yielding Variety "

Q: Which of the following is true of kinetochores? 3657 0

  • 1
    They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis.
    Correct
    Wrong
  • 2
    They are the sites at which microtubules attach to chromosomes.
    Correct
    Wrong
  • 3
    They are located at the center of the centrosome and organize tubulin into spindle fibers.
    Correct
    Wrong
  • 4
    They cross at the cell's equator and move against each other, causing the cell to elongate.
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "They are the sites at which microtubules attach to chromosomes."
Explanation :

Answer: B) They are the sites at which microtubules attach to chromosomes. Explanation: They are the sites at which microtubules attach to chromosomes.

Q: What process immediately preceeded protein synthesis at the ribosome? 1747 0

  • 1
    transcription
    Correct
    Wrong
  • 2
    replication
    Correct
    Wrong
  • 3
    translation
    Correct
    Wrong
  • 4
    duplication
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "transcription"
Explanation :

Answer: A) transcription Explanation: Protein synthesis at the ribosome is immediately preceeded by the transcription process.

Q: In what organelle does cellular respiration take place? 1236 0

  • 1
    Cytoplasm
    Correct
    Wrong
  • 2
    Ribosomes
    Correct
    Wrong
  • 3
    Mitochondria
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Mitochondria"
Explanation :

Answer: C) Mitochondria Explanation: Cellular respiration is the multi-step process that creates energy from nutrients and food molecules. It begins in the cytoplasm of the cell, with the mitochondria functioning as the main organelle where the rest of the process continues and finishes. During respiration, glycolysis occurs in the cytoplasm of the cell.

Q:

It causes clotting of blood – 

1058 0

  • 1
    Thrombin
    Correct
    Wrong
  • 2
    Hemoglobin
    Correct
    Wrong
  • 3
    Pectin
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Thrombin "
Explanation :

The substance that causes the clotting of blood is:

(A) Thrombin

Thrombin is an enzyme that plays a crucial role in the blood clotting process. It is responsible for converting fibrinogen, a soluble plasma protein, into insoluble fibrin threads. These fibrin threads form a mesh that helps in the clotting of blood, particularly at the site of injury or wound. Therefore, option (A) Thrombin is the correct answer.

Q:

How many types of lavaks are based on color?

4788 0

  • 1
    2
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "3"

Q:

Hugging and kissing of mother to her baby initiates, which of the following hormone for secretion? 

2971 0

  • 1
    Follicular Hormone
    Correct
    Wrong
  • 2
    Oxytocin
    Correct
    Wrong
  • 3
    Insulin
    Correct
    Wrong
  • 4
    Noradrenalin
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Oxytocin"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully