Biology Trivia Questions
Total Questions: 123
What biological process involves the breakdown of 2 H2O molecules by 8 photons of light to produce an O2 molecule?
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photosynthesis
Which mineral is stored by the protein ferritin in the liver and spleen?
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iron
What is the term for the outermost layer of protection in plants and invertebrates that is usually just one cell thick?
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epidermis
What color is the euglena when it is living in the sunlight?
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green
Which organ, in addition to the lungs, mainly produces the anticoagulant heparin?
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liver
Which element does the bacterium rhizobium, living in nodules on legume roots, 'fix' from the air?
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nitrogen
What is the process called where birds and bees transfer gametes from anthers to stigmas?
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pollination
In most invertebrates and young plants, what is the name of the outer layer of skin that is only one cell thick?
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epidermis
In biological classification, what rank is situated between family and species?
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genus
In birds, which part of the alimentary canal is expanded to form the crop, located between the pharynx and stomach?
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esophagus
What force causes the directional growth movement of plants called geotropism?
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gravity
What is defined as a change in the hereditary material of an organism's cells?
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mutation
What is the middle region of the body of an insect, or the chest region in mammals?
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thorax
What is the branch of biology that studies the interactions between living organisms and their environment?
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ecology
Which organ produces bile that is stored in the gall bladder?
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liver
What insect, also known as a dayfly, has a lifespan of only a few hours or a few days?
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mayfly
What protein are the barbs on a bird's feathers made of, which is also found in human hair?
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keratin
What is the taxonomic rank that is higher than species but lower than family?
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genus
Which vitamin, found abundantly in green leafy vegetables and tomatoes, is essential for blood clotting?
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vitamin k
What material, known for its elasticity, comprises a shark's skeleton instead of bone?
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cartilage
What is the pigment responsible for the red color of blood cells, consisting of 10 letters?
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hemoglobin
In muskrats, what is the term for the period that lasts less than a month, derived from Latin for 'carrying'?
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gestation
What is the name given to blind fish of the genus amblyopsis that live in dark environments?
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cavefish
What do pit organs in some snakes sense to help them locate and strike at prey?
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heat
Which tiny, one-celled organism gets its name from the Greek word for 'oblong' due to its shape?
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paramecium
What substance do the protozoans in a termite's gut break down from the wood the termite eats?
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cellulose
What type of winged insect pollinates the Yucca flower through the actions of its female species?
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moth
In what substance are vitamins A and E usually soluble, as opposed to water-soluble vitamins B1 and C?
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fat
What class of single-cell fungus multiplies asexually by budding?
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yeast
Which organ is responsible for producing the hormone gastrin?
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stomach
What protozoan is described in one book as a 'mass of living jelly'?
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amoeba
Amylase is a class of enzymes that helps convert which nutrient into malt sugar?
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starch
What is the most abundant plasma protein, also found in the white of an egg?
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albumin
What is the name of the spiral-shaped part of the inner ear that resembles a snail's shell?
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cochlea
What large animal is the Geochelone elephantopus, found in the Galapagos, known to be?
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tortoise
In the monera kingdom, bacteria and what blue-green species are included?
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algae
What is the name of the cell division process that reduces the number of chromosomes by half and means 'diminution'?
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meiosis
What is the process called in which glucose or other sugars are broken down by yeast or bacteria in the absence of oxygen?
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fermentation
What rhyming word refers to an organism's resulting appearance and contrasts with its genetic makeup, or genotype?
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phenotype
What does a frugivore eat by definition?
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fruit
In the classification of animals, what grouping comes directly between kingdom and class?
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phylum
What is the process where water passes through a cell membrane, and has a 'reverse' type used for desalination?
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osmosis
Which branch of biology focuses on the development of the fertilized egg and the growth of the fetus?
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embryology
What pigment is highly concentrated in Cindy Crawford's mole or in any person's mole?
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melanin
In Linnaeus's classification system, which term is used alongside the genus to classify each living thing?
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species
What is the anatomical term for the smallest bone in the body, also known as the stirrup?
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stapes
What part of the eye is irregularly shaped in a person with astigmatism?
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cornea
Which type of pollination occurs in flowers that have very small petals or no petals at all?
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wind
In what process does the Calvin cycle convert carbon dioxide into carbohydrates?
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photosynthesis
What is the process by which a scion is put on a stock?
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grafting
Which organ is responsible for removing excess glucose from the blood and storing it as glycogen?
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liver
What is the name of the cell formed by the fusion of a male and female gamete that develops into an embryo?
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zygote
What is the type of RNA that is not transfer or ribosomal?
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messenger
What is produced when luciferin undergoes oxidation in insects?
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light
What simple sugar serves as the primary source of energy for cell metabolism?
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glucose
What is the basic bacterial type, besides coccus and spirillum, that causes tuberculosis?
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bacillus
In which organ are the islets of Langerhans located, where they produce glucagon?
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pancreas
What is the term for any foreign substance or organism that causes the body to produce antibodies, derived from the Greek word for 'born'?
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antigen
Which sense organ includes the uveal tract?
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eye
The common bile duct is formed by the cystic duct from the gallbladder and the hepatic duct from which organ?
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liver