Organisms cannot make their own food without cell membranes

cell walls

chloroplasts

Vacuoles

The correct answer is - chloroplasts

Explanation:

Plants or autotrophs contain exceptional organelles considered chloroplasts that traps light and use it to use carbon dioxide and water into sugar and oxygen. Living organisms without chloroplasts can not make their own food.  

Chloroplasts look like oval, flat circles. Like mitochondria, they also have two membranes. The whole organelle encased by the outer membrane. The inner membrane contains stroma, a thick fluid, which makes up the vast majority of the chloroplast's volume. Dispersed all through the stroma are piles of empty plates called grana that contain chlorophyll, which traps sunlight based on the intensity for use during photosynthesis.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

this would be a math