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Digestion Flashcards

(84 cards)

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1
Q

Processes essential to maintain basic body functions n prevent wear n tear of body lif

A

Life processes

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2
Q

Life of earth depends on __ molecules

A

Carbon

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3
Q

Most common chemical reactions to break down molecules

A

Reduction and oxidation reaction

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4
Q

Nutrition process

A
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5
Q

Unicellular organisms exchange gases , food and removal of wastes through

A

Diffusion

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6
Q

Simple diffusion cannot meet the requirements of MULTICELLULAR organisms

A

As in multi org not all cells are in contact with air specialised organs required to carry out functions

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7
Q

We need nutrition for

A

Growth
Development
Synthesis of protein

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8
Q

Autotrophs use __ to obtain nutrition/ for photosynthesis

A

Inorganic CO2 n water

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9
Q

Autotrophs example

A

Green plants n few bacteria like Blue green algae

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10
Q

Heterotrophs use __ to break down the complex substances that they require for nutrition

A

Use bio catalysts like enzymes

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11
Q

Carbohydrates is stored in animals in the form of

A

Glycogen

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12
Q

Carbohydrates is stored in plants in the form of

A

Cellulose

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13
Q

Photosynthesis process

A

Absorption
Conversion n splitting
Reduction

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14
Q

In photosynthesis energy is created in the form of

A

Glucose ( carbohydrates)

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15
Q

2 major conditions for photosynthesis

A

Presence of cholorophyll n sunlight

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15
Q

Photosynthesis definition

A

Process through which green plants take in substances outside the body n process it n convert them into stored form

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16
Q

How much molecules of water n O2 is produced in photosynthesis

A

6

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17
Q

6co2+12H2O—>C6H12O6 +6O2+6H2O

A
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18
Q

The photosynthesis process needed to be done immediately

A

False
Ex- dessert plants they take up CO2 at night prepare the intermediate n carry out the processing next day

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19
Q

Stomata is present

A

Root,shoot n leaves

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20
Q

Photosynthesis site

A

Leaves

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21
Q

Exchange of gases takes place in plants through

A

Stem
Roots
Leaves

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22
Q

Opening and closing of stomatal pore done by

A

Guard cells

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23
Q

Stomatal pore open

A

Guard cells swell as water flows into them

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24
Stomatal pore close
Guard cells shrink as water goes out of them
25
Guards cells help prevent
Transpiration
26
A plant leaf is boiled and put in alcohol n then iodine soln what is the colour of leaf
Blue
27
A plant leaf is boiled and put in alcohol n then iodine soln . This makes the leaf turn blue from green . What are we trying to identify
Presence of starch
27
A plant leaf is boiled and put in alcohol n then iodine soln . This makes the leaf turn blue from green . What are we trying to identify
Presence of starch
28
Potassium hydroxide (KOH) absorbs
CO2
29
Alcoholic KOH used for
Dehydrohalogenation
30
__ is an essential element used to synthesis proteins
Nitrogen
31
Other raw materials used by plant from soil (minp)
Water Nitrogen Iron Phosphorous Magnesium
32
Plants take in nitrogen in the form of
Inorganic nitrates or nitrites Organic compounds prepared by bacteria from atmospheric nitrogen (like rizobium )
33
Form of nutrition in heterotrophs depends on
How the food can be obtained Type n availability of the food
34
Organisms which break down food outside the body n then absorb
Saprophytic
35
Sapro examples
Fungi / bread mould Yeast Mushroom / agaricus
36
Organisms who take in whole food n break it down inside the body
Holozoic
37
What can be taken in and broken down depends on
Body design n functioning
38
What can be taken in and broken down depends on
Body design n functioning
39
Organisms deriving nutrition from other plants n animals Without Killing them
Parasitic
40
Parasitic examples
Leech Ticks Lice Cascuta Tape worms
41
Type of nutrition in Amer Bel
Parasitic
42
Amoeba uses __ to engulf food
Pseudopodia
43
Engulf of blood by amoeba process called e
Endocytosis
44
Pseudopodia is an extention of
Cell membrane
45
Engulf of food in paramecium done by
Cilia covers the whole body of paramecium
46
Paramecium is unicellular
47
In amoeba the food is broken down in __ n diffused in __
Food vacuoles Cytoplasm
48
Pseudopodia is temporary
49
Alimentary canal or oesophagus extends to
Mouth to anus
50
Oesophagus made of which kind of cell
Squamous epithelium tissue
51
Salivary gland secretes
Salivary amylase
52
Salivary amylase breaks down
Complex starch into simple sugar
53
Which part shows peristaltic movement
Oesophagus
54
1 St enzyme to be mixed in food
Salivary amylase
55
Gastric glands in stomach secretes
HCL Pepsin Mucous
56
The food is mixed with saliva by
Muscular tongue
57
Peristaltic movement occur all across the __
Gut
58
Food pipe also called
Oesophagus
59
The __ helps in mixing food with digestive enzymes
Muscular walls of stomach
60
Function of pepsin
Protein digestive enzyme
61
Function of HCL
Activates pepsin
62
Function of mucous
Protects stomach walls from hcl
63
The exit of food from stomach is regulated by
Spinchter
64
Spinchter function
Releasing food in small amts so that digestion takes completely
65
Longest part of alimentary canal
Small intestine
66
Food from stomach is
Partially digested or incomplete digested
67
Cows have __ small intestine
Long small intestine due to cellulose
68
Tigers have __small intestine
Short or small
69
Site of complete digestion
Small intestine
70
Site for absorption
Large intestine
71
Small intestine receives secretion from
Liver n pancreas
72
Bile juice functions
Activates pancreatic enzymes Basic in nature So makes the acidic food from stomach basic so that pancreatic juices can act **Breaks down fat gobules in small intestine to increase enzyme efficiency
73
Pancreas secrete
Trypsin Lipase
74
Trypsin
Protein digestion
75
Lipase function
Breaks down emulsified fats
76
*** intestinal juices secreted by small intestine walls converts
Protein to amino acid Complex carbs to glucose Fatty acids to glycerol
77
Villi present in
Small intestine
78
***Villi helps in
Increasing the surface area for absorption Richly supplied with blood vessels so take up the digested food to each cell for obtaining energy Repair **Building new tissues
79
Digested food is taken up by
Small intestine walls
80
Unabsorbed food goes to
Large intestine
81
Function of large intestine
Absorb more water
82
Exit of waste material regulated by
Anal spinchter

Biology (8 decks)

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