do all plant cells contain chloroplasts? why?

Answer 1

No, they don't. I'll give two examples of cells without plastids:
Sieve tube elements and water conducting xylem cells.
Sieve tube elements are living cells without plastids or nuclei (they are run by their companion cells, which house the nuclei and necessary organelles).
Water conducting xylem cells, like tracheids and vessels, are dead at maturity and therefore don't have plastids.

Answer 2

No, most chloroplasts are in the interior cells in leaves, termed the
mesophyll, and the cells near the surface of green stems. Many leaf and stem
epidermal cells lack chloroplasts. The epidermis is the outermost layer of
cells on nonwoody plant parts. A pair of guard cells surround each leaf
stomata. Guard cells usually have chloroplasts. Cells in xylem and phloem
tissue also usually lack chloroplasts. Xylem and phloem provide structural
support and internal transport of water, minerals and organic compounds in
plant organs.

Most underground plant cells lack chloroplasts because chloroplasts require
light for their development. Thus, underground organs such as roots, bulbs,
tubers, corms and rhizomes would generally lack chloroplasts. However,
underground cells often have other kinds of plastids, such as amyloplasts,
which store starch. Undergound plant organs may develop some chloroplasts if
exposed to light.

Window leaf plants have fleshy leaves that are buried in the soil with just the
top showing aboveground. The window leaves have many cells in the top center of
the leaf that are transparent and let light reach the chloroplast-containing
cells on the sides of the leaf. The transparent cells lack chloroplasts.

Parasitic plants, such as Indian pipe (Monotropa uniflora) and dodder, lack
chlorophyll so have no chloroplasts. White or yellow tissue in variegated-leaf
plants also lack chloroplasts. Albino plants also lack chlorophyll. Many
nongreen flowers and fruits lack chloroplasts at maturity.

Answer 3

No. Not all plant cells (in plants larger than 1 cell) are photosynthetic.

Root cells, for example, do not contain chloroplasts.

Answer 4

Only the green parts have chloroplasts... other structures in plants do not.

Why? Because when plants were evolving, they differentiated just as did animal cells. And cell in the eye looks quite different that skin cells. Bark cells in trees look different that leaf cells

Answer 5

Chloroplasts contain chlorophyll which is green. The green parts of plants have chloroplasts.

Answer 6

ALL flora comprise chloroplasts. i imagine the reply above became refering to bacteria... Chloroplasts are needed for photosynthesis, procedure in which flora use to transform image voltaic potential into chemical potential. not all flora have mitochondria, except i'm heavily incorrect. All animal cells have mitochondria yet no chloroplasts.