Carl-Henry M

so i got this metroPCS phone, but it's not activated and i'm try to go on the internet on it at my house through my computer because i wanna download google talk on it so i can use it to talk, but since i don't have internet around the whole house and i can only connect it to my computer can someone pls tell me how to do that because it does not seems to be working with the charger i don't know if i did anything wrong and stuff.

55. Muscle cells contain numerous _____________ to serve their high demand for ATP.

A. ribosomes

B. lysosomes

C. mitochondria

D. inclusions

E. Golgi vesicles

56. This organelle synthesizes steroids in the ovary and stores calcium in muscle cells.

A. smooth endoplasmic reticulum

B. rough endoplasmic reticulum

C. nucleus

D. mitochondrion

E. Golgi complex

57. ______ play an important role in cell division, and they are made of __________.

A. Mitochondria; microtubules

B. Ribosomes; intermediate filaments

C. Nucleoli; microfilaments

D. Centrioles; microtubules

E. Inclusions; centrosomes

58. ________________ synthesize(s) carbohydrates and put(s) finishing touches on proteins synthesized at ____________.

A. Smooth ER; rough ER

B. The Golgi complex; rough ER

C. Smooth ER; the Golgi complex

D. The Golgi complex; smooth ER

E. Ribosomes; smooth ER

59. ______ decompose fatty acids, and detoxify alcohol, free radicals, and other drugs.

A. Lysosomes

B. Microvilli

C. Inclusions

D. Peroxisomes

E. Golgi vesicles

60. ___________ is not involved in protein synthesis.

A. Smooth ER

B. Rough ER

C. The Golgi complex

D. The nucleus

E. Ribosomes

61. ____________ gives structural support, determines the shape of a cell, and directs the movement of substances through the cell.

A. Cholesterol

B. The nucleus

C. The plasma membrane

D. The Golgi complex

E. The cytoskeleton

62. This figure shows the structure of a representative cell. What does "A" represent?

A. smooth ER

B. rough ER

C. Golgi complex

D. mitochondrion

E. nucleolus

63. This figure shows the structure of a representative cell. What does "D" represent?

A. mitochondrion

B. rough ER

C. smooth ER

D. Golgi complex

E. nucleolus

64. This figure shows the structure of a representative cell. What does "C" represent?

A. Golgi complex

B. rough ER

C. smooth ER

D. mitochondrion

E. nucleolus

65. This figure shows the structure of a representative cell. What does "B" represent?

A. Golgi complex

B. rough ER

C. smooth ER

D. mitochondrion

E. nucleolus

True / False Questions

1. The most important advantage of transmission electron microscope (TEM) over light microscope (LM) is its higher resolution.

2. If a cell doubled in diameter, it would have twice as much cytoplasm to maintain.

3. In the plasma membrane, glycolipids and glycoproteins face toward the cytoplasm, while peripheral proteins always face toward the ECF.

4. A cell's second messengers serve to transport material through the plasma membrane.

5. Microvilli and cilia differ in their function but have the same internal structure.

6. Ligand-gated channels are membrane proteins that open or close in response to the binding of a chemical.

7. The greater the concentration gradient the faster the diffusion rate.

8. The Na+-K+ ATPase is a countertransport antiport carrier, which always requires energy.

9. The sodium-glucose transport protein (SGLT) is one example of an active transport process involving a uniport carrier.

10. One example of pinocytosis is the uptake of low-density lipoproteins (LDLs) by endothelial cells.

11. Both nucleus and mitochondrion are surrounded by two layers of unit membrane.

12. The nucleus is the largest organelle in most cells.

13. Ribosomes are made of proteins and RNA.

14. Golgi complex makes peroxisomes but not lysosomes.

15. A crystal of calcium phosphate in the cytoplasm of a cell should be classified as an inclusion.

Multiple Choice Questions

16. These generalizations constitute the modern cell theory except

A. an organism's structure and all of its functions are ultimately due to the activities of its cells.

B. all cells come only from preexisting cells.

C. all cells occupy space.

D. all organisms are composed of cells and cell products.

E. the cell is the basic structural and functional unit of life.

17. ________ cells are thick in the middle and tapered toward the end.

A. Squamous

B. Stellate

C. Columnar

D. Spheroid

E. Fusiform

18. Most human cells range from 10 to 15 micrometers in diameter. What limits how large a cell can be?

A. a cell's lifespan

B. nutrients available in the environment of a cell

C. the relationship between its volume and length

D. the relationship between its length and surface area

E. the relationship between its volume and surface area

19. The fluid outside of a cell is called

A. cytosol.

B. intracellular fluid.

C. extracellular fluid.

D. cytoplasm.

E. nucleoplasm.

20. The flat-shaped cells found covering the skin are

A. cuboidal.

B. columnar.

C. cylindrical.

D. squamous.

E. spherical.

21. Although the transmission electron microscope (TEM) can magnify much more than a light microscope, even at identical magnifications the TEM has the advantage of

A. being able to produce photographs of the specimen.

B. being able to work in a vacuum.

C. being able to show individual molecules.

D. producing higher resolution.

E. working better with thinner tissue specimens.

22. ______ are the most abundant molecules in the plasma membrane.

A. Glycolipids

B. Phospholipids

C. Prostaglandins

D. Proteins

E. Cholesterol molecules

23. These membrane proteins bind to signals by which cells communicate.

A. receptors

B. enzymes

C. carriers

D. cell-identity markers

E. cell-adhesion molecules

24. A receptor protein in the plasma membrane will not bind to just any chemical in the extracellular fluid, but only to certain ones. That is to say, the receptor exhibits

A. selectivity.

B. specificity.

C. efficacy.

D. saturation.

solve each system of equations by graphing. If the system is inconsistent or the equations are dependent, say so?

2x - y = 4

4x = 2y + 8

solve each system of equations by graphing. If the system is inconsistent or the equations are dependent, say so?

x + 2y = 4

2x + 4y = 12

solve each system of equations by graphing. If the system is inconsistent or the equations are dependent, say so?

2x - y = 4

4x + y = 2

Decide whether the given ordered pair is a solution of the given system?

(-5, 2)

5y = 3x + 20

3y = -2x - 4

how exactly do i solve this r^2 = 8r

The length of a right triangle is 4 ft. the length of the hypotenuse is 2 Ft. than the other leg. find the length of the hypotenuse and the other leg.

The length of the hypotenuse is what?

the length of the other leg is what ft. ?

The product of the two consecutive positive integers is 11 more than their sum. Find the integers.

The integers are what?

The length of a rectangular garden is 5m greater than the width. The area is 66m^2. find the dimensions of the garden.

The width of the garden is what m

the length of the garden is what m

42m^2 -29mn -5n^2

3S^2 -14s + 8

24xto the third power -18x to the second power -6x

Find the value of I given that p=400, r=0.14, I = 2

I = ( )

The U.S senate has 100 members. After a certain election , there were 16 more democrats than republicans, with no other party represented. how many members of each party were there in the senate?

select the correct choice:

A) The solution is ( ). simplify an answer

b) the solution is all real numbers

c) the solution is the empty set

x-y-2z = 4

-x+2y+Z =1

-x+y-3z = 11

the cost of a field trip is $220 plus $7 per student. If the school can spend at most $500, how many students can go on the field trip?

the lengths of the sides of triangle are in ratio 5 : 6 : 7. If the perimeter is less than 54 cm, what is the length of the longest side?