small openings where CO2 enters the leaf

What will be an ideal response?


Stomata

Biology & Microbiology

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In a lysosomal storage disease, the hydrolases of lysosomes are released from the cells, rather than being isolated into vesicles. What is one possible mechanism for this result?

A) A proton gradient within vesicles was not generated. B) The ER was unable to produce lysosomal vesicles. C) Lysosomal enzymes were not phosphorylated in the rER. D) There is a lack of mannose-6-phosphatase activity. E) There is a mutation in all hydrolase genes that results in loss of the signal peptide.

Biology & Microbiology

In conifers, meiosis of diploid cells in an ovule produces ____

a. microspores b. pollen sacs c. pollination droplets d. pollen grains e. megaspores

Biology & Microbiology

A nucleated, green cell that moves by means of flagella is a(n)

A) Alga. B) Bacterium. C) Fungus. D) Helminth. E) Virus.

Biology & Microbiology

What are the termination codons of translation and how do they mediate termination?

What will be an ideal response?

Biology & Microbiology