Chloroplasts are composed of membranous sacs called ________ that carry chlorophyll. Surrounding these sacs is a ground substance called the ________.
Fill in the blank(s) with the appropriate word(s).
thylakoids; stroma
You might also like to view...
After three replications of a single DNA molecule,
what percent of the resulting molecules contain one strand of the “original” DNA? a. 0 percent b. 25 percent c. 50 percent d. 75 percent e. 100 percent
Why are flexors and extensors considered antagonistic muscles?
A. Both muscle groups bend a limb at the joint, but each can only contract while the other extends. B. Both muscle groups exert only a pulling force when they contract, but they produce opposing movements of the joint. C. One muscle group exerts a pulling force while the other exerts a pushing force. D. Hypertrophy of one muscle group induces atrophy of the other muscle group.
Which of the following are formed during the dissociation of carbonic acid as it occures in the tissue capillaries.
A) Water B) Bicarbonate ions C) Hydrogen ions D) Cardon dioxide
If the prostate gland failed to add its enzyme-rich fluid to semen, the
A) semen would exhibit reduced fluidity, hampering the ability of sperm to swim freely in the vagina. B) sperm would starve from lack of fructose. C) egg would be killed by the acidic vaginal secretions. D) semen would lack lubricating mucus. E) acrosome would rupture prematurely.