カテゴリー 全て - viruses - cells - tissues - photosynthesis

によって Gurleen Hans 2年前.

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SNC2DL 2021 -Grade 10 Laurier Science

Grade 10 Laurier Science curriculum covers essential topics in biology, focusing on cellular biology, including the structure and function of various cells. It differentiates between prokaryotic and eukaryotic cells, highlighting their unique characteristics and organelles.

SNC2DL 2021 -Grade 10 Laurier Science

SNC2DL 2021 -Grade 10 Laurier Science

Light & Optics

How the eye sees light (PERSONAL RESEARCH)
Microscopes
How to use a standard microscope
Standard light
Electron
The Wave Model of Light
We use similarities in light and movement of waves on the surface of water to explain certain properties of light
Subtractive colour theory of Light

Coloured matter takes in different colours selectively

Additive colour theory of Light

White light is made up of different colours of light

Prisms & the Visible Spectrum

The range of different colours of light passing through a prism is considered the visible spectrum

Electromagnetic spectrum
Electromagnetic radiation
Light travels in waves
Waves

A wave is a disturbance that transfers energy (from point to point) without transferring matter

Parts of a wave

Rest Position - when there are no waves being made

Trough

This is the lowest point in a wave

Crest

This is the highest point of a wave

Wave properties

Frequency-Wavelength relationship

As frequesncy increases, the waves are closer together & therefore smaller

Frequency

The rate of repetition, in a wave

Amplitude

Amplitude determines the energy carried

The wave height from the crest to rest position, wave depth from trough to rest position

Wavelength

Measured in metres (Greek letter lambda)

Distance from one point in a wave to another similar point (ie. trough to trough)

Ecology (Climate Action)

Mitigation & Adaptation
Sustainable development

Paying carbon taxes (for emissions by companies)

trading GHG emissions limits between companies (legislated emission limit)

Buying carbon offsets

Sequestering carbon dioxide

Legislated eco-targets for parts of the world

Developed countries helping developing countriesby reducing GHG emissions

Leaving resources on Earth usable by future generations

Using resources from the Earth responsibly

Greenland Ice Core Project (GRIP)
Proof of GHG concentrations increasing
Solar Radiation & Thermal Energy On Earth
Net Radiation Budget
Insolation
Albedo
Net Radiation Budget Of Earth & specific areas
Insolation v/s albedo of certain areas
Thermal energy near the poles v/s thermal energy near the equator
Global Warming & Climate Change
Climate Change & the economy

Managing individual carbon footprints and thus, GHG emissions

Industrial fossil fuel consumption - reduction

Individual fossil fuel consumption - reduction

Individual electricity use reduction

The G8

Russia

U.S.

Japan

U.K.

Italy

Germany

France

Canada

Maximizing profits using developing country resources

Pollution & emissions starting from the industrial revolution

Effects of Climate Change

C.C. Adaptation

Adaptive capacities of certain countries

Resource imbalance among countries

Developing cities to counteract & adapt to C.C. effects

C.C. Mitigation

Making climate change effects less severe/milder

Changes in animal species behaviour

Animals that benefit from climate change

Species threatened by changes in weather/temperature

range shifts of animals (and plants)

Ocean Warming

Changes in ocean current flows

Melting Ice

Floods

Storms

Wildfires

Drought

Heat waves

Persistence of certain GHG's
Global Warming Potential of certain GHG's

Global Warming due to GHG emissions

Weather V/S Climate
Canada's weather & climate conditions
Earth's "Bio-spheres"
Biosphere

Earth's biomes & Changing weather conditions

Biomes Of Canada

Lithosphere
Hydrosphere

Melting freshwater glaciers into the oceans

Atmosphere

Atmosphere Layers

Thermosphere

Mesosphere

Stratosphere

Troposphere

Atmospheric Gases and climate change

The Greenhouse Effect

Climate justice for remote populations

The Anthropogenic Greenhouse Effect

Combustion into the atmosphere from human activities

The Natural Greenhouse Effect

Greenhouse Gases

Methane (hydrocarbon)

Nitrous Oxide

Carbon Dioxide

Carbon sinks

Carbon sources

Biology (Cells, Tissues, Organs, Organ Systems, & Organisms)

Viruses & pandemics of different times in history, including COVID19
Cells come together to make tissue
Tissue

Groups of similar cells that come together to perform a specific function

Tissues come together to form organs

Organ

A structure composed of different tissue, specialized to carry out a specific function.

Organ systems

Plants have 2 organ systems

The shoot/shute system

Processes of stem, leaves, flowers, bud, fruit, etc.

Pulls up water & nutrients with xylem, brings sugars down with phloem

Transpiration in plant leaves

As a water molecule leaves the leaf, it pulls up other water molecules along with it

Water evaporation from leaves of the plant

Above ground

The root system

The roots take up water & nutrients, send them up the stem

Below ground

Animals have 11 organ systems

The lymphatic system

Consists of the thymus, spleen, lymph nodes, lymph vessels, white blood vessels, etc.

The reproductive system

MALES: testes, epididymis, vas deferens, penis, urethra, etc.

FEMALES: ovaries, fallopian tubes, vagina, uterus, etc.

The excretory system

Consists of bladder, ureter, urethra, kidney, skin, etc.

The endocrine system

Consists of the glands - pitituary, hypothalamus, thyroid, adrenals, - pancreas, ovaries (females), testes (males), etc.

The Nervous System

Consists of the Central Nervous System (brain, spinal cord) & the Peripheral Nervous System (nerves in the body).

The circulatory system

Consists of heart, blood vessels (Arteries, veins, cappilaries), blood itself, etc.

The respiratory system

Cellular respiration

Consists of nose, mouth, trachea, lungs, bronchioles, bronchi, alveoli, diaphragm, etc.

The digestive system

Consists of mouth, esophagus, stomach, pancreas, gall bladder, liver, intestines, rectum, etc.

The muscular system

Consists of all tendons & ligaments, skeletal muscle, smooth muscle, cardiac muscle, etc.

The skeletal system

Consists of all bones & cartilage, etc.

The integumentary system

Consists of skin, hair, nails, glands, etc.

Tissues in plants

Vascular tissue

Phloem

Transports sugars (& energy) down the plant

Xylem

Transports nutrients and water up the plant

Ground tissue

ROOTS:

Stores food/water

STEM:

Provides strength/support

LEAVES:

The site of where photosynthesis occurs

Epidermal tissue

Protective outer covering, exchanges materials/gases through the plant

Meristematic tissue

Unspecialized tissue that divides with apoptosis, found in many locations & is responsible for growth

Tissues in animals

Nervous tissue

Responds to stimuli, transmits & stores info., among other things

Muscle tissue

Allows for movement

Connective tissue

Forms blood, protects & supports structure, stores fat, fills empty space

Epithelial tissue

Lines cavities & body outer surfaces, protects structures & forms glands

Cell differentiation
The series of events through which STEM cells develop into/become specialized cells

Happens during fetal state (?)

Cell development
All cells start out as identical and will grow to do its own thing in the organism
Cell Specialization
Different cell types have different structures & perform different functions
Specialized cells

Cells that have a specific structure to perform a specific function

STEM cells/ embryo

Unspecialized cells that have the potential to become specialized as they mature

Cancer & Cells
Cancer Treatments

Immunotherapy

The immune system treats the cancer like it would a harmful foreign body, and gets rid of it like that

Chemotherapy

Radiotherapy

Surgery

Tumors In Organisms

Malignant tumors

Cancerous - may result in death of the organism

Benign tumors

Not cancerous - not dangerous to the body

Cell Apoptosis
Happens when a cell is no longer effective in its function, so it self-destructs
The regular, controlled death of a cell
Cell Division (Reproduction)
Cells in cytokinesis

A split pinch occurs to turn the parent cell into two daughter cells

Animal cells - cleavage furrow Plant cells - cell plate

Parent cell organelles & DNA are duplicated,

Cells in mitosis

Telophase

Chromosomes unwind into chromatin

Spindle fibers disappear

New nuclear membranes form around each DNA set

Anaphase

The strands move away from each other (begin to)

The spindle fibers split apart the chromosomes into strands

Metaphase

Chromosomes of the cell line up at cell equator (with spindle fibers)

Prophase

Centroiles move to poles of cell, spindle fibers attach to chromosome centromeres

Nuclear membrane disapears

Chromatin coils, condenses into chromosomes

Cells in interphase

Cell carries out its basic function

Regular growth & development

Cells
Cells are the smallest unit capable of performing life functions
Prokaryotic Cells

Dont have structures covered in membranes

Few internal structures

Normally one-celled organisms

Eukaryotic Cells

Contain organelles (surrounded in membranes)

Present in most living organisms

Differences In Plant & Animal Cells
Cell Organelles

Chloroplast (PLANT)

Vacuole

Lysosome

Golgi bodies

Mitochondria

Ribosomes

Endoplasmic Reticulum (rough & smooth)

Cytoplasm

Chromatin

Nucleolus

Nuclear membrane

Nucleus

Cell wall (PLANT ONLY)

Cell membrane

Chemistry

Different elements used as stains in cell viewing
Periodic table of elements
Patterns in electron arrangements
Ion charge
Atomic mass
Atomic number
Elements on the periodic table
Four common chemical families
Chemical properties of matter
Atomic theory of matter
Pure substances & mixtures
Molecular Compounds
Made using covalent bonds
Compounds with a nonmetal & nonmetal
Ionic Compounds
Made using ionic bonds
Compounds with a metal & nonmetal
Writing formulas for polyatomic ions/ ionic compounds in general
Polyatomic ions & compounds with polyatomic ions
Ionic compounds with naming nonmetals & with multivalent elements
Properties of ionic compounds
Naming ions & ionic compounds
Bohr Rutherford diagrams before & after ionization
Chemical Reactions
pH Indicators

Red cabbage juice

Universal indicator

Bromothymol blue

Phenolphthalein

pH paper

Blue litmus paper

Red litmus paper

Bases

Ammonium hydroxide

Potassium hydroxide

Magnesium hydroxide

Calcium hydroxide

Sodium hydroxide

Acids

Citric acid

Hydrochloric acid

Acetic acid

Sulfuric acid

Carbonic acid

Word equations, skeletal equations, balanced equations of reactions

Balancing skeletal equations

Diatomic molecules

Law of Conservation of Mass

Gases in chemical reactions

Reactions in a sealed system v/s reactions in an open system

Reactant mass = product mass

Gases in general, in our atmosphere

Even with gases* in sealed systems

In a chemical reaction, mass cannot be created or destroyed and must stay the same throughout the reaction

Types Of Reactions

*Combustion

Incomplete combustion

Hydrocarbon + oxygen gas - carbon dioxide + water + carbon monoxide + carbon soot + energy

Complete combustion

Hydrocarbon + oxygen gas - carbon dioxide + water + energy

Neutralization

Acid + base - water + salt

Single Displacement

Element + compound - compound + element

Double Displacement

Compound + compound - compound (different) + compound (different)

Decomposition

Compound - element (/compound) + element (/compound)

Synthesis

Element + element - compound (DASH MEANS ARROW)