Form 4 Term 1 Cells Flashcards

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1
Q

Cell

A

The basic unit of structure and function for all living things

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2
Q

Tissue

A

A groups of similar cells that perform a function

Eg skin tissue

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3
Q

Organ

A

Structure that is composed of tissue

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4
Q

Organ system

A

Group of organs to at work together to perform a function

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5
Q

Organism

A

A living thing

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6
Q

Order of level of organisation from least complex to most complex

A

Cell

Tissue

Organ

Organ system

Organisms

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7
Q

7 processes for all living things

A

MRS GREN

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8
Q

MRS GREN

What are the 7 processes for all living organisms ??

A

MOVEMENT - change position or place

RESPIRATION chemical reaction uses oxygen to release energy

SENSITIVITY - sense changes and respond

GROWTH - permanent increase in size

REPRODUCTION - making more of the same organisms

EXCRETION - removal of toxic substances and wAste from an organisms

NUTRITION-process where nutrients are broken down and used for energy Growth and repair

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9
Q

Biotic factors

A

Predation

Competition

Disease

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10
Q

Abiotic factors

NON LIVING

A
Moisture
Temperature 
Weather 
Altitude 
Amount of sunlight 
PH of soil
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11
Q

What is aerobic respiration?

A

Breakdown of glucose with oxygen to release energy

Glucose and oxygen = carbon dioxide and water and energy

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12
Q

What is photosynthesis ?

A

Where light energy is used to make glucose usually in plants

Equation

Carbon dioxide and water = glucose and oxygen

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13
Q

Carbon dioxide and water in photosynthesis make what?

A

Glucose and oxygen

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14
Q

In aerobic respiration what do glucose and oxygen make?

A

Carbon dioxide and water and energy !

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15
Q

Do plants carry out respiration and photosynthesis ?

A

YES

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16
Q

When does photosynthesis occur?

A

Day time as need sunshine

17
Q

When does respiration occur in plants ?

A

Day and night otherwise they would die (like humans)

18
Q

What two structures are present in plant call that are not in animal cell

A

Cell wall

Chloroplast

19
Q

Abiotic

A

Non living chemical and physical components of an ecosystem

Eg moisture temperature weather altitude sunlight

20
Q

Biotic

A

Living components of that effect other organisms

Predation
Competition
Parasitism
Diseases