Why can oxygen diffuse across a cell membrane but a protien cannot?

a. oxygen is polar unlike proteins

b. proteins asre blocked by protien channels

c. proteins are smaller than oxygen

d. oxygen is smaller than proteins

Which statement is correct? Hent is correct The number of electrons of a neutral atom always equals the number of protons. The number of neutrons always equals the number of protons. The number of neutrons always equals the number of electrons.

According to model 1 in what type of organs are the cells that enter meiosis i found

Why is surface area maximized in organisms

What was Watson and Crick's major contribution to understanding and interpreting DNA?

7. In a classification system, kingdoms contain: (a) the greatest variety of organisms (b) all organisms exactly the same (c) almost identical organisms (d) the fewest types of organisms.

A statement is best to use when refining your hypothesis

All of the following statements about the understanding of culture in anthropology are correct except: a. Culture is biologically and genetically transmitted from person to person. b. Culture is the way of life of a particular human society. c.

Place the planets in order based on their average distance from the Sun, shown in the table in part B. Now, compare the sizes of the planets. What relationship do you observe between a planet's size and its proximity to the Sun

Which of the following is NOT part of cell theory? All cells contain the same organelles All cells arise from existing cells Cells are the basic units of structure and function in organisms All living things are made of one or more cells

Ireland and Great Britain are separated from each other by what?