all lectures combines Flashcards

1
Q

A cell is the basic unit of an organism and is composed of

A

3 major parts

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2
Q

Diffusion example

A

A molecule that crosses the membrane by moving from high to low and does not need cellular energy

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3
Q

If there was 100mEq of Na+ inside the cell and 50mEq of Na+ outside the cell, the concentration is said to be higher inside the cell

A

True

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4
Q

What substance can’t undergo passive diffusion because of a concentration gradient

A

Ions

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5
Q

What is the means of transport for large molecules and ions

A

Facilitated diffusion

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6
Q

What is the name for diffusion of water across a membrane

A

Osmosis

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7
Q

What is the movement of material out of the cell using energy

A

Excocytosis

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8
Q

Membranous organelles

A

1.Nucleus
2.Mitochondria
3.Lysosomes
4.Peroxisomes
5.Endoplasmic reticulum
6.Golgi apparatus

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9
Q

Non membranous organelles

A

1.Ribosomes
2.Centrosomes
3.Microfilament
4.Centrioles

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10
Q

What is normal saline solution to blood cells

A

Isotonic

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11
Q

A cell placed in a hypotonic solution will?

A

Expand or burst

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12
Q

What is the function of the active site of an enzyme?

A

To bind substrate

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13
Q

An enzyme can be used many times to produce a large amount of product

A

True

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14
Q

What class of organic compound are enzymes

A

Proteins

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15
Q

Enzyme function representation?

A

E+S-ES-EP-E+P

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16
Q

During metabolic reactions, as chemical bonds are broken the energy is..

A

Released

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17
Q

As chemical bonds are formed energy is what within the new bonds?

18
Q

Anabolism of ATP

A

Energy transferred from cellular respiration to reattach phosphate

19
Q

Nutrients that we consume have what kind of energy stored within their chemical bonds

20
Q

Catabolism of ATP

A

Energy transferred and utilized by metabolic reactions when phosphate bond is broken

21
Q

Which product of cellular respiration has the most energy associated with it ?

A

Released electrons

22
Q

Glycolisis

A

1.Glucose as Substrate
2.Releases high energy electrons
3.Produces a net of 2 ATP

23
Q

Citric acid cycle

A

1.Requires oxygen
2.Releases high energy electrons
3.Produces a net of 2 ATP

24
Q

Electron transport train

A

1.Requires oxygen
2.Receives high energy electrons
3.Produces 28 ATP

25
Which type of tissue provides support, protection and fills spaces of the body?
Connective tissue
26
Purple tissue with a purple like blob in the middle and an eye in the middle of the blob
1.Functions to provide fast forms of communication 2.Includes cells with numerous cellular extensions connecting adjacent cells to one another
27
Skeletal- Bright pink like tissue with white tubes across the tissue and some blue specs on the white tubes
1.Provides movement of the body segments 2.Allows high rates of energy consumption 3.Pumps blood to the body 4.Skeletal muscle 5.Usually attached to the bone
28
Dense connective tissue-Blue and white like tissue that looks like water with slight waves
1.Most abundant form of tissue 2.Most varied of the tissue types 3.Provides support and mechanical protection
29
Purple like tissue with darker purple bubble like sacs on it-Epithelial
1.Always avascular 2.Cells receive nutrients from deeper tissue layers 3.Cover surface and lines cavities
30
Which type of tissue covers the body surface and lines organs and cavities
Epithelial tissue
31
Smooth-Light pink tissue with darker pink circles in it
1.Smooth muscle 2.Found in the wall of hollow organs 3.Non striated cells
32
Cardiac-Dark pink tissue with purple like cylinder specs on it
1.Cardiac Muscle 2.Found in the wall of the heart
33
What organ system help with support and movement?
1.Muscular 2.Skeletal
34
What organ system helps with integration and coordination
1.Nervous 2.Endocrine
35
What organ system helps with body covering
1.Integumentary
36
What organ system helps with absorption and excretion
1.Digestive 2.Respiratory 3.Urinary
37
What organ system helps with Transport
1.Cardiovascular 2.Lymphatic
38
What is the definition of homeostasis
The maintenance of a stable internal environment
39
What body cavity would contain the heart esophagus and trachea
Mediastinum
40
What is the isotonic for humans?
0.9% sodium chloride
41
Telometers
at the end of chromosomes and it tells your cell to stop dividing
42