Question

dna structure

1. complete the following.

type	active transport	diffusion	osmosis	facilitated diffusion
direction?		high to low
atp needed?			yes
membrane protein used?

1. draw an arrow in each of the pictures below to indicate which way water will move by osmosis. indicate whether the solution is hypotonic, isotonic, or hypertonic.

(images of beakers with 10% salt, 2% salt, 30% salt solutions and cells with 10% salt inside)

1. a cell with 5% salt concentration is placed in a beaker with a 20% salt concentration. osmosis occurs. draw a picture to illustrate the scenario. include an arrow to show which way movement occurs.
2. a cell with 5 glucose molecules outside and 20 glucose molecules inside needs even more glucose inside! active transport occurs. draw a picture to illustrate what will happen.

cellular energy

1. use the image to the right for the following questions.

• draw an arrow pointing to the bond which stores the most energy.
• which molecule is the energy currency of the cell? ______
• what process that takes place mostly in the mitochondria converts adp into atp? ______

(image of an atp molecule structure with adenine, ribose, and phosphate groups)

Explanation:

The problem involves concepts related to cell biology, specifically cellular transport (osmosis, active transport) and cellular energy (ATP structure and function). The subfield of Biology (under Natural Science) is the most appropriate as it deals with the study of cells, their functions, and biological processes like transport and energy conversion.

Answer:

Biology (Natural Science)