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Science Class 10 NCERT > Biology > Flashcards

Biology Flashcards

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Biology 101 flashcards
1
Q

Respiration in absence of oxygen

A

Glucose to pyruvate to ethanol and co2 and Energy
Happens in yeast

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2
Q

Respiration in lack of oxygen

A

Glucose to pyruvate to lactic acid plus energy
Happens in our muscle cells

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3
Q

Respiration in presence of oxygen

A

Glucose to pyruvate to carbon dioxide plus water plus energy
Happens in mitchondria

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4
Q

Pulmonary circuit

A

RV to PA to lungs to PV to LA

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5
Q

Systemic circuit

A

LV to Aorta to Organs to Vena cava to RA

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6
Q

Protection of brain

A

Cranium
Meninges (3 membranes)
Cerebrospinal fluid

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7
Q

Forebrain parts

A

Cerebrum
Thalamus
Hypothalamus

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8
Q

Hindbrain parts

A

Pons
Medulla oblongata
Cerebellum

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9
Q

Cerebrum function

A

Largest part of brain
Voluntary actions

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10
Q

Thalamus function

A

Coordinating centre for sensory and motor signaling

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11
Q

Hypothalamus function

A

Regulates temperature hunger thirst
Regulation of behavior emotions

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12
Q

Cerebellum

A

Responsible for balance of the body and posture
Precision of voluntary actions

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13
Q

Medulla functions

A

Involuntary functions
Breathing heartbeat digestion BP

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14
Q

Pons function

A

sleep cycle
Relays information

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15
Q

Midbrain function

A

Processing of visual and auditory information

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16
Q

Types of movement in plants

A

Nastic movement(non directional)
Tropic movement (directional)

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17
Q

Plant growth promoter hormones

A

Auxin
Gibberlin
Cytokinin

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18
Q

Growth inhibitor plant hormones

A

Absissic acid
Ethylene

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19
Q

Stress hormone in plants

A

Absissic acid inhibits growth, wilting of leafs

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20
Q

Auxin

A

elongation of plant

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21
Q

Gibberellin

A

Growth of stem

22
Q

Cytokinin

A

Promotes cell division

23
Q

Ethylene

A

Ripening of fruit
It is a gaseous hormone

24
Q

Pituitary gland

A

Called master gland
Located at base of brain
Growth hormone, thyroid stimulating hormone produced

25
Q

Thyroid gland

A

Located at neck
Thyroxine produced, helps in controlling metabolism
Iodine required

26
Q

Deficiency of iodine in diet

A

Required for thyroxine hormone
Causes giotre

27
Q

Adrenal gland

A

Adrenaline hormone
Fight or flight

28
Q

Pancreas

A

Insulin and glucagon
Regulates blood glucose levels
Mixed gland

29
Q

Testis

A

Testosterone

30
Q

Ovary

A

Estrogen

31
Q

Stomach

A

Digestion of protein

32
Q

Small intestine

A

Digestion of carbohydrates proteins fat

33
Q

Liver function

A

Produces bile juice which makes food alkaline from stomach and emulsification of fat

34
Q

Pancreas

A

Secretes pancreatic juice
Contains trypsin for digesting proteins and lipase for breaking down emulsified fat

35
Q

What happens to food in small intestine

A

Protein to amino acids
Complex carbohydrates to glucose
Fats to fatty acids

36
Q

Pea plant scientific name

A

Pisum sativum

37
Q

Why pea plant

A

7 contrasting traits
Short life span
Self or cross pollination
Produces large number of offsprings

38
Q

Traits of pea plant

A

Plant height Tall dwarf
Pod shape inflated constricted
Seed shape round wrinkled
Seed color yellow green
Flower position axial terminal
Flower color purple white
Pod color green yellow

39
Q

Law of dominance

A

If the pair is heterozygous, one trait will dominate the other

40
Q

Law of segregation

A

At the time of gamete formation, the gametes separate and unite back on formation of xygote

41
Q

Law of independent assortment

A

Transfer of one character is independent of other character

42
Q

Binary Fission

A

Happens in amoeba
Divides into two or more daughter cells

43
Q

Multiple fission

A

Amoeba during unfavorable conditions

44
Q

Budding

A

Hydra yeast

45
Q

Fragmentation

A

Spirogyra

46
Q

Regeneration

A

Hydra, Planaria, starfish

47
Q

Spore formation

A

Fungi

48
Q

Advantages of vegetative propagation

A

Faster and earlier than seeds
Genetically similar
Plants that cannot produce seeds can be propagated

49
Q

Double fertilization

A

In flower
One sperm gamete fertilizes nuclei and another forms zygote

50
Q

Fruit formation

A

Ovary developed to fruit
Ovule to seed

51
Q

What happens to food in mouth

A

Starch gets broken to maltose

Science Class 10 NCERT (2 decks)

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