Test Your IQ On Biology

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  • 1/15 Questions

    Which sense tells you what color something is?

    • Sight
    • Hearing
    • Smell
    • Touch
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About This Quiz

This is based on the college level course principles of biology

Test Your IQ On Biology - Quiz

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  • 2. 

    What is the liquid in your mouth that helps soften food?

    • Saliva

    • Plasma

    • Tears

    • Saline

    Correct Answer
    A. Saliva
    Explanation
    Saliva is the correct answer because it is the liquid in our mouth that helps soften food. Saliva is produced by the salivary glands and contains enzymes that begin the process of breaking down food, making it easier to swallow and digest. It also helps to keep the mouth moist, which aids in speech and prevents dryness. Saliva plays a crucial role in the overall digestive process by lubricating food and initiating the chemical breakdown of carbohydrates.

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  • 3. 

    What do we call all of our bones, collectively?

    • Skeleton

    • Marrow

    • Neurons

    • Ecosphere

    Correct Answer
    A. Skeleton
    Explanation
    The correct answer is "Skeleton". The skeleton refers to the entire framework of bones in the human body. It provides support, structure, and protection for the body's organs and tissues. The term "skeleton" is used to collectively describe all the bones in the body. Marrow, neurons, and ecosphere are not accurate terms to describe all of our bones.

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  • 4. 

    What is the voice box also called?

    • Pancreas

    • Larynx

    • Prostate

    • Esophagus

    Correct Answer
    A. Larynx
    Explanation
    The voice box is also known as the larynx. It is a part of the respiratory system located in the neck, between the pharynx and the trachea. The larynx plays a crucial role in producing sound and facilitating speech. It contains the vocal cords, which vibrate when air passes through, producing sound waves that can be shaped into speech by the mouth and other vocal organs. The other options, pancreas, prostate, and esophagus, are not related to the voice box or its functions.

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  • 5. 

    What is the technical term for windpipe?

    • Prostate

    • Bladder

    • Trachea

    • Pancreas

    Correct Answer
    A. Trachea
    Explanation
    The technical term for windpipe is trachea. The trachea is a tube-like structure that connects the larynx (voice box) to the bronchi in the lungs. It serves as a passage for air to enter and leave the lungs during breathing. The trachea is composed of rings of cartilage which help to keep it open and prevent collapse.

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  • 6. 

    What nerve transmits sound signals to your brain?

    • Perinatal

    • Auditory

    • Embryonic

    • Olfactory

    Correct Answer
    A. Auditory
    Explanation
    The auditory nerve is responsible for transmitting sound signals from the cochlea in the inner ear to the brain. It is a cranial nerve that carries information about sound and helps us perceive and interpret auditory stimuli.

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  • 7. 

    What nutrient do girls need more of than boys do?

    • Magnesium

    • Iron

    • Zinc

    • Salt

    Correct Answer
    A. Iron
    Explanation
    Girls need more iron than boys do because they lose iron through menstruation. Iron is an essential nutrient for the production of red blood cells and to prevent iron deficiency anemia. Since girls have a monthly menstrual cycle, they need to replenish the iron lost during this process. Boys, on the other hand, do not experience menstruation and therefore do not require as much iron.

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  • 8. 

    Which of these provides energy for another organism?

    • Mirror Image

    • Host

    • Good Samaritan

    • Vaccine

    Correct Answer
    A. Host
    Explanation
    A host is an organism that provides energy for another organism. In a symbiotic relationship, the host provides a habitat and nutrients for the other organism, known as the parasite. The parasite benefits from the host by obtaining energy and resources necessary for its survival. This relationship is often seen in parasitic organisms such as ticks, fleas, and certain bacteria. The host serves as a source of energy, allowing the parasite to thrive and reproduce.

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  • 9. 

    How many lobes are in the human brain?

    • Two

    • Ten

    • Four

    • Thirty

    Correct Answer
    A. Four
    Explanation
    The human brain consists of four main lobes: the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. Each lobe has distinct functions and is responsible for various cognitive processes and sensory information processing. Therefore, the correct answer is four.

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  • 10. 

    Through what does most oxygen enter the human body?

    • Hair

    • Heart

    • Trachea

    • Skin

    Correct Answer
    A. Trachea
    Explanation
    The trachea is the correct answer because it is the tube that connects the throat to the lungs and allows air to enter and exit the body. Oxygen is primarily taken in through the respiratory system, and the trachea plays a crucial role in this process by providing a pathway for oxygen to enter the body. The other options, hair, heart, and skin, do not have a direct role in the entry of oxygen into the human body.

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  • 11. 

    What is the largest artery in the human body?

    • Aorta

    • Capillary

    • Jugular

    • Carotid

    Correct Answer
    A. Aorta
    Explanation
    The largest artery in the human body is the aorta. It is the main artery that carries oxygenated blood from the heart to the rest of the body. The aorta is responsible for distributing blood to all organs and tissues, making it a vital part of the circulatory system.

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  • 12. 

    Which of these is an upright primate?

    • Hominid

    • Brontosaurus

    • Arachnid

    • Eohippus

    Correct Answer
    A. Hominid
    Explanation
    An upright primate refers to a primate that walks on two legs in an upright position. Hominid is the correct answer because it is a term used to describe modern humans and their close extinct relatives, such as Australopithecus and Homo habilis, who walked upright. Brontosaurus is a dinosaur, Arachnid refers to spiders and scorpions, and Eohippus is an extinct horse-like mammal.

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  • 13. 

    What long strands of genetic material are in a cell's nucleus?

    • Plasma

    • Chromatin

    • Alveoli

    • RNA

    Correct Answer
    A. Chromatin
    Explanation
    Chromatin refers to the long strands of genetic material found in a cell's nucleus. It consists of DNA molecules tightly coiled around proteins called histones. Chromatin is responsible for packaging and organizing the DNA, allowing it to fit inside the nucleus and regulate gene expression. This structure plays a crucial role in various cellular processes, including DNA replication, transcription, and repair.

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  • 14. 

    What directly affects all cell activity?

    • Stimulus

    • Alveoli

    • Cerebellum

    • Stamina

    Correct Answer
    A. Stimulus
    Explanation
    Stimulus directly affects all cell activity by triggering a response or reaction in cells. It is a signal or change in the environment that can cause cells to adjust their behavior or function. Cells respond to stimuli by initiating various processes such as metabolism, growth, division, and communication. This response allows cells to adapt and maintain homeostasis in different conditions. Therefore, stimulus is a crucial factor that directly influences cell activity.

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  • 15. 

    What describes living things coming from non-living things?

    • Spontaneous Generation

    • Spontaneous Combustion

    • Photosynthesis

    • Evolution

    Correct Answer
    A. Spontaneous Generation
    Explanation
    Spontaneous Generation refers to the belief that living organisms can arise from non-living matter. This concept was widely accepted in the past but has been disproven by scientific experiments. According to spontaneous generation, things like maggots appearing on rotting meat or mice emerging from piles of grain were thought to be the result of spontaneous creation. However, through experiments conducted by scientists like Louis Pasteur, it was proven that living organisms can only come from pre-existing living organisms, leading to the rejection of spontaneous generation as a valid explanation for the origin of life.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 03, 2015
    Quiz Created by
    Alfredhook3

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