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Worksheets

Cells

Total questions: 30

Worksheet time: 11mins

Name
Class
Date
1.

Which of the following are the functions of proteins found in cell membranes?

a)

Form pores

b)

Act as carrier molecules

c)

Act as enzymes

2.

Lipid soluble molecules diffuse through the ____________; water soluble molecules diffuse through the _________

a)

Membrane pores; membrane pores

b)

Membrane pores; cell membrane

c)

Cell membrane, membrane pores

d)

Cell membranes; cell membranes

3.

The end result of diffusion is

a)

All net movements of molecules ceases

b)

Some molecules become more concentrated

c)

Determines by the amount of energy expended in the diffusion process

d)

Determined by the rate at which diffusion took place

4.

Which of the following statements is true about osmosis?

a)

Always involves a membrane that is impermeable to at least one kind of solute molecules.

b)

The number of soluble molecules present, not the kind, determines the osmotic pressure

c)

The greater the difference in solute concentrations across the semipermeable membrane, the greater the osmotic pressure difference across the semipermeable membrane

d)

Osmosis always involves difference in solvent concentration

5.

Cells placed in a hypertonic solution will

a)

swell

b)

shrink

c)

neither swell or shrink

d)

This term does not describe the tendency of cell to shrink or swell

6.

Suppose that a woman was running a long distance race. During the race, she lost a large amount of hypo-osmotic sweat. You would expect her cells to

a)

shrink

b)

swell

c)

remain the same

d)

bloat

7.

Suppose that a man is doing heavy exercise in the hot summer sun. He sweats profusely. He then drinks a large amount of distilled water. You would expect his tissue cells to

a)

shrink

b)

swell

c)

remain the same

d)

bloat

8.

Which of the following statements is (are true) about facilitated diffusion?

a)

Net movement is with the concentration gradient

b)

It requires the expenditure of energy

c)

It doesn’t require a carrier molecule

d)

It moves materials through membrane pores

9.

The concentration of fluids in the human intestine tends to be iso osmotic with the blood plasma. The intestinal membrane is essentially impermeable to magnesium salts. If a person ingested a large amount of magnesium salts for treatment of constipation, you would expect his tissue cells to

a)

shrink

b)

swell

c)

remain the same

d)

bloat

10.

A process that requires energy and moves large molecules in solution (i.e., not particulate matter) into cells is called

a)

diffusion

b)

pinocytosis

c)

phagocytosis

d)

exocytosis

11.

Cytoplasm is found in

a)

Between the plasma membrane and the nuclear membrane

b)

the nucleus

c)

throughout the cell

d)

inside the plasma membrane

12.

A large structure normally visible in the nucleus of the cell

a)

Endoplasmic reticulum

b)

mitochondria

c)

nucleolus

d)

lysosome

13.

The cell organelle that is involved in the storage, modification and packaging of secretory materials

a)

Nucleolus

b)

mitochondria

c)

ribosomes

d)

golgi apparatus

14.

Which of the following organelles produces large amounts of ATP?

a)

Nucleus

b)

Mitochondria

c)

Ribosomes

d)

Lysosomes

15.

Which of the following organelles would one expect to be present in large amounts in a cell responsible for secreting lipid?

a)

Rough endoplasmic reticulum

b)

Lysosomes

c)

Smooth endoplasmic reticulum

d)

Ribosomes

16.

Which of the ff functions are red blood cells incapable of performing?

a)

Synthesize ATP

b)

Synthesize new protein

c)

Consume oxygen

d)

Use glucose as a nutrient

17.

In which of the ff organelles is mRNA synthesized?

a)

nucleus

b)

ribosomes

c)

endoplasmic reticulum

d)

peroxisome

18.

The organelle of the cell that serve as a site of protein synthesis

a)

ribosome

b)

lysosome

c)

endoplasmic reticulum

d)

golgi apparatus

19.

Chromosomes disperse to become chromatin during

a)

anaphase

b)

metaphase

c)

prophase

d)

telophase

20.

The major function of meiosis is to ensure that each of the resultant daughter cells

a)

Has the same number and kind of chromosomes as the mother cell

b)

Has one half number of chromosomes as the mother cell

c)

Has one half of the number and one of each pair of chromosomes from the mother cell

d)

Are real daughters and not tomboys

21.

The cell membrane is made (mostly) from a double layer of

a)

phospholipids

b)

hydrolipids

c)

protolipids

d)

phytolipids

22.

What separates the nucleus from the cytoplasm of the cell?

a)

cytosol

b)

organelle

c)

nuclear envelope

d)

nucleolus

23.

Which of the following is found inside the nucleus?

a)

nucleolus

b)

golgi apparatus

c)

organelle

d)

ribosomes

24.

Which organelle digests other, worn-out organelles, as well as food particles and engulf viruses and bacteria?

a)

lysosome

b)

peroxisomes

c)

mitochondria

d)

vacoules

25.

Where are the cells chromosomes stored?

a)

vacoules

b)

mitochondria

c)

nucleus

d)

endoplasmic reticulum

26.

Which organelle is particularly important for the synthesis, folding, modification, and transport of proteins within the cell?

a)

endoplasmic reticulum

b)

golgi apparatus

c)

mitochondria

d)

ribosomes

27.

Which organelle acts as an assembly line where proteins are synthesized from RNA?

a)

lysosomes

b)

ribosomes

c)

nucleus

d)

golgi apparatus

28.

The network of interlinking filaments and tubules that provides a cell with shape and stability is referred to as the

a)

cytoscaffold

b)

cytoskeleton

c)

cytosol

d)

cytostructure

29.

What is the name for the process whereby the membrane of a vesicle fuses with the plasma membrane, allowing it's contents to be released from the cell?

a)

endocytosis

b)

exocytosis

c)

phagocytosis

d)

arthrosis

30.

Genetic information is carried out of the nucleus and to the sites of protein synthesis in the cytoplasm by

a)

DNA

b)

mRNA

c)

RNA

d)

tRNA