|
|
1 meter = _____ centimeters. (Activity 7A)
|
| 100 |
| 1,000,000,000 |
| 1,000 |
| 1,000,000,000,000 |
| 1,000,000 |
|
|
|
_____ are surface appendages that allow a bacterium to stick to a surface. (Activity 7B)
|
| Cell walls |
| Flagella |
| Ribosomes |
| Mitochondria |
| Pili |
|
|
|
What is the function of a bacterium's capsule? (Activity 7B)
|
| protection |
| adhesion |
| protein synthesis |
| DNA storage |
| propulsion |
|
|
|
In eukaryotic cells the first step in protein synthesis is the _____. (Activity 7E)
|
| translation of an RNA nucleotide sequence into a sequence of amino acids |
| linking of nucleotides to form a polypeptide |
| translation of a DNA nucleotide sequence into a sequence of amino acids |
| transferring of information from DNA to messenger RNA |
| removal of introns from RNA and the stitching together of exons |
|
|
|
Which organelle plays a role in intracellular digestion? (Activity 7F)
|
| lysosome |
| ribosome |
| chloroplast |
| Golgi apparatus |
| plasmodesma |
|
|
|
The cilia and flagella of eukaryotic cells are composed of _____. (Activity 7H)
|
| microtubules |
| intermediate filaments |
| microfilaments |
| pili |
| tonofilaments |
|
|
|
Which of these cell junctions form a barrier to the passage of materials? (Activity 7I)
|
| tight junctions |
| communicating junctions |
| anchoring junctions |
| intercalated disks |
| plasmodesmata |
|
|
|
The primary role of _____ is to bind animal cells together. (Activity 7I)
|
| plasmodesmata |
| communicating junctions |
| gap junctions |
| anchoring junctions |
| tight junctions |
|
|
|
_____ aid in the coordination of the activities of adjacent animal cells. (Activity 7I)
|
| Communicating junctions |
| Tight junctions |
| Anchoring junctions |
| Plasmodesmata |
| Desmosomes |
|
|
|
Choose the letter that indicates the organelle that contains most of a cell's DNA. (Activity 7J) 
|
| A |
| B |
| C |
| D |
| E |
|
|
|
Which of these organelles carries out cellular respiration? (Activity 7J)
|
| nucleolus |
| chromatin |
| smooth endoplasmic reticulum |
| mitochondrion |
| ribosomes |
|
|
|
Which of these is the double membrane that encloses the nucleus? (Activity 7J) 
|
| A |
| B |
| C |
| D |
| E |
|
|
|
The _____ is composed of DNA and protein. (Activity 7J)
|
| mitochondrion |
| flagellum |
| centriole |
| chromatin |
| ribosome |
|
|
|
Ribosomal subunits are manufactured by the _____. (Activity 7J)
|
| lysosome |
| nucleolus |
| peroxisome |
| rough endoplasmic reticulum |
| smooth endoplasmic reticulum |
|
|
|
_____ are the sites of protein synthesis. (Activity 7J)
|
| Mitochondria |
| Peroxisomes |
| Golgi apparatuses |
| Microfilaments |
| Ribosomes |
|
|
|
Which of these is involved in the manufacture of membrane? (Activity 7J)
|
| smooth endoplasmic reticulum |
| ribosomes |
| Golgi apparatus |
| nucleolus |
| rough endoplasmic reticulum |
|
|
|
The _____ is a selective barrier, regulating the passage of material into and out of the cell. (Activity 7J)
|
| lysosome |
| nuclear envelope |
| chloroplast |
| plasma membrane |
| nucleus |
|
|
|
Where is calcium stored? (Activity 7J)
|
| mitochondria |
| smooth endoplasmic reticulum |
| centrioles |
| rough endoplasmic reticulum |
| microtubules |
|
|
|
Which of these structures stores, modifies, and packages products? (Activity 7J) 
|
| A |
| B |
| C |
| D |
| E |
|
|
|
Which of these are hollow rods that shape and support the cell? (Activity 7J)
|
| plasma membrane |
| microtubules |
| chloroplasts |
| microfilaments |
| peroxisomes |
|
|
|
_____ is/are identical in structure to centrioles. (Activity 7J)
|
| Mitochondria |
| Nuclear envelopes |
| Chromatin |
| Microfilaments |
| Basal bodies |
|
|
|
Which of these organelles produces H2O2 as a by-product? (Activity 7J)
|
| mitochondrion |
| nucleus |
| centrioles |
| flagellum |
| peroxisome |
|
|
|
Which of these provides the cell with structural support? (Activity 7J) 
|
| A |
| B |
| C |
| D |
| E |
|
|
|
Which of these organelles is responsible for photosynthesis? (Activity 7K) 
|
| A |
| B |
| C |
| D |
| E |
