Question

5 multiple choice 5 points which of the following is an example of active transport? popcorn odor permeating the room a white blood cell engulfing a bacterium a dissolving sugar cube sodium ions flowing through leakage channels 6 fill in the blank 5 points extensions found on the surface of some cells that aid in moving substances, such as mucus, across the surface are called ___. type your answer... 7 multiple choice 5 points you would expect that cells that expend a great deal of energy, such as skeletal muscle cells, would have increased quantities of vesicles ribosomes rough endoplasmic reticulum mitochondria

Explanation:

1. For question 5: Active transport requires energy and moves substances against a concentration gradient. A white - blood cell engulfing a bacterium is phagocytosis which is a form of active transport. Popcorn odor permeating the room is diffusion, a dissolving sugar cube is a physical change related to solubility, and sodium ions flowing through leakage channels is passive transport.
2. For question 6: Cilia are hair - like extensions on the surface of some cells that help move substances like mucus across the cell surface.
3. For question 7: Mitochondria are the power - houses of the cell and produce ATP (energy). Cells that expend a great deal of energy, such as skeletal muscle cells, have increased quantities of mitochondria. Vesicles are for transport, ribosomes are for protein synthesis, and rough endoplasmic reticulum is involved in protein production and modification.

Answer:

1. A white blood cell engulfing a bacterium
2. Cilia
3. mitochondria