Which of the following is not a membrane-bound organelle?

A) mitochondrion
B) cytoskeleton
C) nucleus
D) endoplasmic reticulum


B

Biology & Microbiology

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You take a break from raking your lawn to examine a leaf. While turning it over in your hands, you are struck by the way the veins in the leaf resemble a tree with many branches. You’re not sure which plant dropped this leaf, but there’s one thing you do know about it. What is that?

a. The plant’s leaves are sessile. b. The plant’s phyllotaxy is whorled. c. The plant is a dicot. d. The plant is coniferous.

Biology & Microbiology

Four of the five answers listed below are related by their participation in water movement through plants. Select the exception

a. hydrogen bonds b. transpiration c. cohesion d. tension e. phytoremediation

Biology & Microbiology

Glycolysis occurs in the ________, the Krebs cycle occurs in the ________, and the electron transport chain occurs in the ________ membrane

A) cytoplasm; mitochondria; plasma B) mitochondria; cytoplasm; plasma C) mitochondria; mitochondria; mitochondrial D) cytoplasm; mitochondria; mitochondrial E) cytoplasm; cytoplasm; plasma

Biology & Microbiology

Predict what would happen to the volume of the urine if the descending portion of the loop of Henle ceased to function.

A. The volume of the urine would increase. B. The salt concentration of the urine would remain constant. C. The volume of the urine would not change.   D. The volume of the urine would decrease.

Biology & Microbiology