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FSS - BIOLOGY > F3 - SEM1 - CELL AS BASIC UNIT OF LIFE > Flashcards

F3 - SEM1 - CELL AS BASIC UNIT OF LIFE Flashcards

1
Q

Who and when found “Cell”?

A

Robert Hooke found “Cell” in 1665 when observing cork tissue

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2
Q

What was the tool used to find “Cell”?

A

Microscope

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3
Q

Explain Cell theory

A

All living organisms are made of one or more cells
The cells are basic unit of structure, function and organization in all organisms
All cells come from pre-existing, living cells

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4
Q

What are cells composed of

A

Biomolecules

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5
Q

Name 5 common biomolecules

A

Water
Carbonhyrate
Protein
Lipid (e.g., Fat)
Nucleic acids

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6
Q

What are the 3 structures of animal cells that can be observed under light microscope?

A

Nucleus
Cytoplasm
Plasma membrane

Diagram

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7
Q

What are the 3 main characteristics of cell membrane and their functions?

A
  1. Differentials permeable - control materials in and out of the cell
  2. Flexible - can become bigger and smaller
  3. Mainly made up of lipid molecules - enclose the cell and separate the cell contents from outside
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8
Q

What are the 2 characteristics of Cytoplasma and their functions?

A
  1. Jelly liked - holds all the organelles
  2. Full of enzymes and reactants - sites of chemical reactions
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9
Q

What is the characteristic of nucleus and its function?

A

Contain DNA (genetic material) - control the activities of the cell

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10
Q

What are the structures that can be observed under electron microscope?

A

Nucleus
Cytoplasm
Cell membrane
Rough Endoplasmic Reticulum
Smooth Endoplasmic Reticulum
Endoplasmic Reticulum
Ribosome
Mitochondria
Vacuole

Diagram

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11
Q

What is the characteristic and its function of Rough Endoplasmic Reticulum?

A

Contain ribosome - site of making proteins

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12
Q

What is the characteristic of Smooth Endoplasmic Reticulum and its function?

A

Network - site of making lipid, transport of lipid

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13
Q

What is the characteristic of Endoplasmic Reticulum and its function?

A

Interconnected network, a link between cytoplasm and nuclear membrane - transport substances efficiently in the cytoplasm

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14
Q

What is the function of Ribsome?

A

Making protein

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15
Q

What are the 2 characteristics of Mitochondria and their functions?

A

Rod-shaped, double membrane, finger-like projections and contain related enzymes - carry out aerobic respiration to produce energy

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16
Q

What are the 2 characteristics of Vacuole and their functions?

A

Space containing water and dissolved substances - storage of dissolved substances
Differentially permeable - control materials in and out of vacuole

17
Q

What are 3 structures that can be found in plants only?

A

Cell wall
Chloroplast
Large vacuole

18
Q

What are the 2 characteristic of cell wall and its function?

A

Made up of cellulose rigid - give shape to cell and support to plant
Fully permeable - allow materials go in and out of the cell

19
Q

What is the characteristic of chloroplast!

A

Contains chlorophyll - absorb light for photosynthesis

20
Q

What is the 2 characteristic of Large vacuole and its function?

A

Control water and other materials in and out, differentially permeable - maintain the content in the cytoplasm

21
Q

Explain levels of Organization

A

Atom > Molecule / Compound > Organelle > Cell > Tissue > Organ > Organ System > Organism

22
Q

Explain hierarchy of biological order

A

Cell level - for multicellular organsism
> Tissue level - made up of many cells of same type
> Organ level - made up of different types of tissues
> System level - made up of different related organs

23
Q

List different types of cells

A

Nerve cell
Muscle cell - voluntary, involuntary and cardiac
Bone cell
Gland cells
Blood cells - red blood cells, lymphocyte, monocyte, neutrophil, eosinophil, basophil
Reproductive cells - sperm, ovum

24
Q

List 4 types of tissues

A

Connective tissue
Epithelial tissue
Muscle tissue
Nervous tissue

25
Q

List different types of organs

A

Heart
Lungs
Liver
Stomach
Brain
Kidneys
Skin

26
Q

List different types of systems

A

Integumentary system
Muscular system
Skeletal system
Nervous system
Endocrine system
Circulatory system

FSS - BIOLOGY (11 decks)

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