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Why do we see green when we look at a leaf on a tree?  Related review: Photosynthesis .

What is the ultimate source of energy for most forms of life on earth?  Related review: Food Chain .

Why does water in a metal pan heat up far more slowly than the pan itself?  Related page: Water Properties .

How does meiosis occur?  Related review: Cell Division .

Why is it important to study protists?  Related reviews: Microbiology .

Why is disposal of radioactive wastes a problem?  Related review: Environmental Issues .

What is the use of C14 when investigating photosynthesis?  Related review: Photosynthesis .

Which kind of bacteria lives in an enviroment that has very high salt concentration that would kill most other bacteria?  Related review: Bacteria .

In humans, red hair is recessive to dark hair. What are the chances of a dark haired couple having a red haired child if each had a red haired parent?  Related review: Mendel's Laws .

What stage is found in mitosis and meiosis 1 interphase but not in meiosis 2 interphase?  Related review: Cell Division .

What is binary fission?  Related page: Bacterial Cell .

A biologist is searching for a new plant-based antibiotic. What types of ecosystems would the biologist have the chance of finding new kinds of plants to use in her research?  Related page: Biodiversity .

How are biomes classified?  Related review: Biomes .

What is the process by which the cell takes in digested foods and other chemicals?  Related review: Cell Membrane .

Where is energy produced in a cell?  Related review: Cell Respiration .

What is the haploid phase of a plant that produces gametes by mitosis?  Related review: Plant Classification .

Do gymnosperms undergo pollination?  Related review: Gymnosperms .

What explains why a cell's size is limited?  Related page: Cell Structure .

What region of the plant cell stains darkest with iodine and why?  Related pages: Plant Physiology , Cell Structure .

What type of regulation is noncompetitive inhibition of an enzyme?  Related review: Enzyme Activity .

What is the structure of the human heart?  Related page: Circulatory System .

When do plant cells find osmosis useful?  Related page: Cell Membrane .

What condition is achieved when molecules are evenly spread in an area?  Related page: Cell Membrane .

What are the divisions of the phylum Chordata?  Related review: Chordates .

Under which environmental condition should the contractile vacuole of a paramecium be active?  Relate review: Protists .

What are the possible gametic genotypes of a cell with genotype KkLl?  Related page: Mendel's Laws .

Are proteins used in respiration?  Related review: Respiratory System .

What is the type of stem cell that produces all the formed elements except lymphocytes?  a) myeloid stem cells
b) granular stem cells
c) lymphoid stem cells
d) agranular stem cells
e) megakaryocitic stem cells

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What factors is hormone action dependent on?  Related review: Endocrine System .

What is the relationship between the number of enzymes and the number of intermediates in an enzymatic reaction pathway?  Related review: Enzyme Activity .

Which organelles contain DNA?  Related page: Cell Structure .

How are antibodies used for blood typing?  You may find answer on our page on Blood Types .

What are microorganisms?  Related pages: Microbiology .

What roles does the diameter of an axon play in determining speed?  Related review: Nervous System .

What is a cell?  Related reviews: Cell Biology .

What type of symmetry do arthropods have?  Related page: Arthropods .

How does the transmission of an impulse along the length of a neuron occur?  Related review: Nervous System .

What are the major divisions of Biology?  Related page: Biology Syllabus .

What are the kingdoms of Biology?  Related page: Life Kingdoms .

What is the effect of temperature on animals?  Related pages: Zoology .

How to find out whether the oxygen in carbon dioxide comes from sugar or oxygen gas?  Related review: Cell Respiration .

What is the function of the endodermis?  Related page: Plant Tissues .

In a food chain, what makes up the first trophic level?  Related page: Food Chain .

What is a condition achieved when molecules are evenly spread in an area?  Related review: Cell Membrane .

What are three main functions of a root?  Related page: Plant Physiology .

How does the mitochondria structure relate to the function of the organelle?  Related review: Cell Respiration .

How is the mouth of the crocodile adapted to feeding?  Related reviews: Evolution .

What can carbon not bond with?  Related review: Biochemistry Introduction .

What are zoonotic viruses?  Related review: Viral Diseases .

What does a hydrolysis of a lipid form?  A) glycerol
B) fatty acids
C) glucose
D) 2 monosaccharodes
E) Both A and B are true

Related page: Lipids .

Which of the following is not a charateristic of an animal plasma membrane?  provides mechanical strength
provides mechanical shape
responsible for the synthesis of ATP
maintains cellular homeostasis
regulates passage of molecules ...

How two species can be so different when they are so nearly identical in their DNA sequence?  Two species are 99% identical in their DNA sequence yet they are quite different in morphology and the way that they interact with their environment. From ...

What is the pacemaker of the heart?  Related review: Circulatory System .

What are three general functions of glial cells?  Related page: Nervous System .

What is a substance on which an enzyme acts called?  Related page: Enzyme Activity .

What are the forms of cabohydrates most eaten by humans?  Related review: Carbohydrates .

Sometimes the potatoes kept in a basket during the late rainy season start giving out small shoots, would you call it germination?  Related review: Botany .

In which parts of a chloroplast does photosynthesis take place?  Related review: Photosynthesis .

Which traits of virus and prions resemble living organisms and which traits do not?  Related reviews: Viruses , Prion .

What are the rules that apply to diffusion?  Related page: Cell Membrane .

How does salt preserve meat as in beef jerky?  Related review: Cell Membrane .

Are there animals with covering made of cellulose?  Related review: Zoology .

Where are enzymes made?  Related page: Protein Synthesis .

How does banana propagate?  Related review: Angiosperms .

What are examples of two ways bacteria provide nutrients to humans?  Related page: Bacterial Cell .
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What are the reactants of the Krebs cycle?  Related review: Cell Respiration .

What are two ways in which sunlight supports life?  Related review: Photosynthesis , The Water Cycle .

Which microorganisms can be taken as examples for kingdom monera?  Related page: Monera .

What is the approximate efficiency of cellular respiration for a mutant organism that produces only 29 moles of ATP for every mole of glucose oxidized, rather than the usual 36-38 moles of ATP?  Related review: Cell Respiration .

What are the genotypes and phenotypes for the inheritance of human blood type?  Related review: Blood Types .

What are four life processes in which DNA plays an important role?  Related review: Nucleic Acids .

If one DNA strand has sequence AGTC what is the sequence of the opposite or complementary strand?  Related page: Nucleic Acids .

What does an inhibitor do to affect an enzyme activity?  Related review: Enzyme Activity .

What are the characteristics of the frog eyes?  You may find answer on our Frog Facts page.

What are the metabolic and structural features of an organism?  Big question. You may find answers by reading our Biochemistry and Cell Biology reviews .

Do drugs that rid the body of eukaryotic parasites often have more side effects and are harder on the body than drugs that act on bacterial parasites?  Why?

What are transport proteins that provide a tubelike opening in the plasma membrane through which particles can diffuse called?  Related review: Cell Membrane .

What do active transport and facilitated diffusion involve?  Related review: Cell Membrane .

What is the chemical formula of maltose?  Related page: Carbohydrate Properties .

If an enzyme is warmed, what happens to its activity?  You may find answer on the Enzyme Activity review.

Where is energy produced in a cell?  Related review: Cell Respiration .

What is the difference between sugar and polysaccharide?  Related review: Carbohydrates .

What are the main components of a cell membrane?  Review Cell Membrane .

What are "active sites" on enzyme molecules?  Related page: Enzyme Activity .

What are the mechanisms by which enzymes lower activation energy?  Related review: Enzyme Activity .

What is a sterile nutrient medium?  Is malt agar an example of this?

In the light microscope objective magnification is 40, ocular 10, binocular adjustment -1.5, so what is the total magnification of this light microscope optic sytem?  No user's answer.