Two types of mechanisms that help transport small molecules in animal cells are ___ and _____.

Fill in the blank(s) with the appropriate word(s).


Answer: simple and facilitated diffusion

Biology & Microbiology

You might also like to view...

Activity of the cerebral hemispheres is coordinated by signals that flow both ways across the ________

a. cerebellum b. midbrain c. optic nerve d. corpus callosum

Biology & Microbiology

Which of the following is a molecule that stimulates a response in the immune system?

a. MHC class II molecules b. Immunoglobins c. Antigens d. Interferons

Biology & Microbiology

Explain why mutualism is sometimes viewed as ‘reciprocal exploitation’. What will be an ideal response?

Biology & Microbiology

The primary function of lymph nodes in the circulatory system is in _________

a. regulation of blood pressure b. production of red blood cells c. production of platelets d. immunity e. gas exchange

Biology & Microbiology