Lab 3 - Cells & Cell Structure Flashcards Preview

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Flashcards in Lab 3 - Cells & Cell Structure Deck (54)
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1

Why are gene function and cell function coupled in prokaryotes?

The lack of membrane bound nuclei and organelles

2

For each type of lens, give the micrometers for each ocular division.

4x = 25 um
10x = 10 um
40x = 2.5um
100x = 1.0um

3

How many um for every mm/cm?

1000mm/10000cm

4

What does an Oscillatoria look like?

Long, worm like

5

What can you see additionally in the electron micrograph?

Polyglucan granules in the interthylakoidal space

6

What additional details can you see in the E. coli?

Ribosomes and infolding of the plasma membrane

7

Why do you think the fossils are classified as prokaryotes?

Do to the size and structure; they look too small to be a eukaryote and look similar to the size and shape of most prokaryotes

8

What can you see in more detail on the euglena?

Flagellum, golgi body + mitochondria and ER

9

What is the division of labor in Volvox colonies?

Some cells act as the reproductive cell

10

Do prokaryotes have a cytoskeleton, undergo endocytosis and exocytosis, have ribosomes?

Yes. No. Yes.

11

How does a muscle cell’s structural function relate to its function in the organism?

Muscle cells function in the cell is to generate movement and heat. In order to do this the muscle cell has myofibrils which allows the cell the strength is needs for movement/pumping

12

How does a mesophyll’s structural function relate to its function in the organism?

Mesophyll creates energy for the plant cell through photosynthesis. Palisade mesophyll is long and cylindrical in shape and spongy mesophyll is spaced out to allow for gas exchange

13

How does a sperm cell’s structural function relate to its function in the organism?

Sperm’s function in the body is for reproduction. Sperm cells have a flagellum which allows motility in order to fertilize an egg.

14

How does a mamalian blood cell’s structural relate to its function in the organism?

Mamalian red blood cell’s function in the organism is to transport oxygen. I can do this because it lacks a nucleus and other big organelles in order to allow room for haemoglobin

15

How does a muscle cell’s structural component relate to its function in the organism?

Neuron’s allow for chemical and electrical signalling. In order to do this neurons have myelin to help conduct those signals

16

How does an Adipocyte’s structural components relate to it’s function?

Adipocyte’s function in the organism is to store fat for use as energy and protection. Adipocyte’s have a non-centrally located nucleus and very little cytoplasm which allows it store large fat droplets

17

Where is simple squamous epithelium located? What is it’s main function?

Located: heart and blood vessels + air sacs in lungs

Function: filtration, diffusion and osmosis

18

Where is stratified squamous epithelium located? What is it’s function?

Location: superficial layer of skin, lines mouth and esophagus, pharynx and epiglottis

Function: Protection

19

What is the location and function of the simple cuboidal epithelium?

Location: Surface of ovaries and lines the kidney tubules

Function: Secretion and absorption

20

Where is the simple columner epithelium located and where is it’s function?

Located: lines the gastrointestinal tract

Function: absorption and secretion

21

What is the function of the nucleus?

The function of the nucleus is store hereditary information as DNA and to coordinate cell activities

22

What is the function of the nucleolus?

The function of the nucleolus is to manufacture ribosomes

23

What is the function of the mitochondria?

The function of the mitochondria is to convert oxygen and nutrients such as glucose into ATP via cellular respiration

24

What is the function of the chloroplast?

The function of the chloroplast is to convert light energy into chemical energy via photosynthesis

25

What is the function of Rough endoplasmic reticulum?

The function of rough endoplasmic reticulum is to produce and process proteins that will be added to a membrane or excreted/secreted out of the cell

26

What is the function of the smooth endoplasmic reticulum?

The function of the smooth endoplasmic reticulum is to produce lipids, store glucose as glycogen and vice versa, as well as a role in detoxification of toxins

27

What is the function of the golgi body?

The function of the golgi body is to modify proteins and lipids that come from ER and prepare them for transport to other parts of the cell or export outside of the cell

28

What is the function of a lysosome?

The main function of a lysosome is to act as a compartment that houses enzymes that breakdown cellular materials that are no longer needed through hydrolysis

29

What is the function of the centriole?

The function of the centriole is to organize microtubules and aid in cell division by guiding the alignment of chromosomes as they separate during cell division

30

What is the function of Cilia and Flagella?

The function of cilia and flagella is to move a cell or group of cells or to transport fluid and material closer to the cell for endocytosis, by manipulating the medium the cell is in