In the reflex arc what is the function of the afferent fiber ?
1.to carry signal from the integration center out to the effector, so the effector can respond appropriately
2. to carry the signal from the receptor to the integration center for processing
3. it detects change
4. none of the above

In what part of a chloroplast does glucose production occur? a. atp synthase b. photosystem ii c. photosystem d. stroma

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.