Biology Practice Question and Answer

Q: What is a single celled organism called 1187 0

  • 1
    protoctists
    Correct
    Wrong
  • 2
    chromosomes
    Correct
    Wrong
  • 3
    unicellular
    Correct
    Wrong
  • 4
    bicellular
    Correct
    Wrong
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Answer : 3. "unicellular"
Explanation :

Answer: C) unicellular Explanation: An organism is a living thing, and there are two broad categories of organisms: those made up of only a single cell, and those made up of multiple cells. Single-celled organisms means which contains only one cell are called unicellular organisms. 'Uni-' means 'one,' so the name 'unicellular' literally means 'one cell.'   Examples of Unicellular or Single celled organisms ::   Prokaryotic organisms like Bacteria,... Some algae like green algae, euglena,...

Q: Daydreaming, Meditation, Intoxication, Sleep and Hypnosis are all types of 2091 0

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    waking consciousness
    Correct
    Wrong
  • 2
    self-absorption
    Correct
    Wrong
  • 3
    altered states of consciousness
    Correct
    Wrong
  • 4
    self-awareness
    Correct
    Wrong
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Answer : 3. "altered states of consciousness"
Explanation :

Answer: C) altered states of consciousness Explanation: Consciousness is the state or quality of awareness, or, of being aware of an external object or something within oneself.   Day dreaming, Meditation, Intoxication, Sleep and Hypnosis are all types of altered states of consciousness . In al these states, a person's state of conscious is altered but he has consciousness.

Q: Photosynthesis contributes to plant growth by 1945 0

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    taking in carbon dioxide and making carbohydrates (sugars)
    Correct
    Wrong
  • 2
    converting sugar to oxygen and water
    Correct
    Wrong
  • 3
    taking in oxygen and making wood
    Correct
    Wrong
  • 4
    synthesizing carbon dioxide and making cellulose
    Correct
    Wrong
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Answer : 1. "taking in carbon dioxide and making carbohydrates (sugars)"
Explanation :

Answer: A) taking in carbon dioxide and making carbohydrates (sugars) Explanation: Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.

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
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Answer : 1. "transcription"
Explanation :

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

Q: Which of the following is not a prime cost? 2077 0

  • 1
    Supervisor's wages
    Correct
    Wrong
  • 2
    Assembly line wages
    Correct
    Wrong
  • 3
    Machine operators wages
    Correct
    Wrong
  • 4
    Direct labor wages
    Correct
    Wrong
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Answer : 1. "Supervisor's wages"
Explanation :

Answer: A) Supervisor's wages Explanation: The prime cost calculates the use of raw materials and direct labor, but does not factor in indirect expenses, such as advertising and administrative costs. Supervisor's wages doesn;t come under prime cost.

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

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    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
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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:

Cynophobia is related with __________.

724 0

  • 1
    Fear of insects
    Correct
    Wrong
  • 2
    Fear of dogs or rabies
    Correct
    Wrong
  • 3
    Fear of Mirrors
    Correct
    Wrong
  • 4
    Fear of snow
    Correct
    Wrong
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Answer : 2. "Fear of dogs or rabies "

Q:

 Refrigeration is the process, due to which

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  • 1
    Bacterias are killed
    Correct
    Wrong
  • 2
    Decreases the growth of bacteria
    Correct
    Wrong
  • 3
    Efficiency of bacterial is restrained
    Correct
    Wrong
  • 4
    Bacteria are converted into plasma
    Correct
    Wrong
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Answer : 3. "Efficiency of bacterial is restrained"

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