The Calvin Cycle can only produce sugar if ______can enter through the pores of the leaves.
A. O2
B. CO2
C. water
D. potassium
E. N2
B. CO2
The pores in the leaves are called stomata. When open, they allow the entry of carbon dioxide and the exit of oxygen. The carbon dioxide is fixed into sugar in the Calvin Cycle of photosynthesis.
You might also like to view...
Gnetophytes are more closely related to angiosperms than to other gymnosperms
A. true B. false
In the offspring resulting from an F1 testcross, what percentage of recombinant phenotypes is expected if the genes under study are independently assorting?
A) 5% B) 33% C) 50% D) 90% E) The percentage cannot be predicted.
Wild type blue-eyed Mary has blue flowers. Two genes control the pathway that makes the blue pigment: The product of gene W turns a white precursor into magenta pigment. The product of gene M turns the magenta pigment into blue pigment. Each gene has a recessive loss-of-function allele: w and m, respectively. A dihybrid (WwMm) is self-pollinated. What proportion of the offspring will be magenta?
a. 1/16 b. 3/16 c. 1/4 d. 9/16
Which of the following types of epithelia would be likely to make up the tubules of the kidney?
A. columnar B. pseudostratified C. squamous D. columnar and squamous E. cuboidal