Cell Biology Chapter 1 Quiz

Question 1

The sandwich model for the cell membrane is no longer excepted today because freeze etched electron microscopy states...

Accepted Answer

cell freezing & fractures showed proteins spanning the length of the membra

Question 2

The theory that states life began on our planet from the archaens deep within hydrothermal vents is carried out by

Accepted Answer

chemoautotrops

Question 3

In the electron micrograph of the liver cell below, number 3 is referred to as the

Accepted Answer

cell membrane

Question 4

In active transport molecules move

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against the concentration gradient

Question 5

The paramecium releases waste products through the cell membrane. What function of life is this

Accepted Answer

Excretion

Question 6

The endosymbiotic theory states that

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eukaryotic organelles originated from symbiotic relations, eukaryotic life originated from prokaryotic life

Question 7

Insulin binding to your cells to allow entry of glucose is an example of

Accepted Answer

hormone receptor sites

Question 8

Which statement recognizes that the cell theory does not apply to all life?

Accepted Answer

all of them apply

Question 9

Which statement is NOT part of the cell theory?

Accepted Answer

cells arise from spontaneous generation

Question 10

The Miller Urey experiment demonstrated how

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organic compounds were made from other inorganic compounds

Question 11

Paramecium have food vacoules to engulf small organisms via endocytosis. This is an example of

Accepted Answer

Nutrition

Question 12

Paramecium contain vacuoles to maintain water balance. This is a case of which life function?

Accepted Answer

homeostasis

Question 13

Centrioles aid in cell division and are found in which cells?

Accepted Answer

animal cells

Question 14

Which organism has a cell wall and pilli meant to attach to various surfaces

Accepted Answer

bacterial cell

Question 15

Cilia,aid in the motility of paramecium towards or away from stimuli. This is a case of...

Accepted Answer

response

Question 16

carbohydrates attached to proteins in the cell membrane are called

Accepted Answer

glycoproteins

Question 17

The whole is greater than the composition of its parts illustrates the idea of ...

Accepted Answer

emergent properties

Question 18

CR in the cytoplasm catalyzed by enzymes help to release energy. Which function of life is this

Accepted Answer

Metabolism

Question 19

Scenedesmus live in colonies to avoid predation. This is a case of which life function?

Accepted Answer

response

Question 20

T or F: Water moves towards the side of the membrane with a higher solute concentration

Accepted Answer

True

Question 21

When materials exit a cell through the cell membrane, this is called ...

Accepted Answer

exocytosis

Question 22

Which of the following items CANNOT pass through the phospholipid bilayer on its own?

Accepted Answer

Sodium ions

Question 23

These types of cells contain 70S ribosomes

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Prokaryotic cells

Question 24

If there is no net movement of water in a cell then one can assume that the cell is immersed in

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an isotonic solution

Question 25

Cells that are small in size tend to ...

Accepted Answer

have larger surface area to volume ratios

Question 26

In the electron micrograph below, the lighter region is known as...

Accepted Answer

naked DNA (lacking histones)

Question 27

Which transport mechanism is NOT an example of PASSIVE DIFFUSION?

Accepted Answer

endocytosis

Question 28

Paramecium make identical copies of themselves via mitosis. Which function of life is this?

Accepted Answer

Reproduction, Growth

Question 29

The amphipathic nature of phospholipids states that....

Accepted Answer

the heads are hydrophilic and polar

Question 30

Chlorella are photoautotrophs that produce glucose. This is an example of which life function?

Accepted Answer

nutrition

Question 31

Which gas did not make up the atmosphere of the early Earth

Accepted Answer

oxygen

Question 32

Which of the following is NOT a role of proteins?

Accepted Answer

fat soluble hormones

Cell Biology Chapter 1 Quiz

Questions 32

Cell Biology Chapter 1 Quiz

Questions 32