Students are growing plants in pots on the windowsill of their classroom. After spring break, a student notices
that one of the potted plants furthest from the
windowsill has changed shape, as shown below.Which
statement best explains why this plant grew at a
different angle? *

A) A plant growth hormone accumulates in the shaded side
of the stems, causing the lower leaves to fall off.

B) A plant growth hormone accumulates in the shaded side of the stems, stimulating those sides to grow faster and
bend toward the light.

C) A plant hormone accumulates in the unshaded side of
plant cells, causing the plants to grow. much faster

D)A plant hormone accumulates in the shaded side of plant
cells, stimulating the plants to produce more flowers.

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.

Explain how the political influence of african americans leaders became weaker.

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?