cells. 1 nucleus- control center using dna 2 cytoplasm- holds cell water and parts 3 cell membrane-...

Cells

• 1 nucleus- • control center using DNA• 2 cytoplasm- • holds cell water and parts• 3 cell membrane- • diffusion (oozing)• 4 cell wall- • protects

• 5 mitochondria- • food into energy• 6 chloroplast- • photosynthesis• 7 ER- • tunnels

• 8 ribosomes- • make proteins• 9 vacuole- • storage

2 structures that make it a plant cell?

Systems • Pumps blood

to deliver food, hormones, oxygen, and CO2

• circulatory

Exchanges oxygen for CO2 at the alveoli

• respiratory

Breaks big molecules into small molecules

• So they fit into a cell• digestive

Includes ovaries and testes

• reproductive

Includes T4 cells and wbc to fight infections

• immune

Makes chemical hormones to control…

• Everything• Endocrine

Movement, tendons, soft tissue

• muscular

Supports and protects

• Where is your thorax?• Skeletal

Brain and spinal cord

• Nervous system

Removes liquid waste from your blood

• Excretory

Homeostasis

• Keeping the body in balance• If you exercise , your oxygen goes

down,• So your respiratory system

increases (you breathe faster) to bring in O2 and your heart pumps faster to deliver the oxygen

Genetics

• Dominant gene: always shows,• Written with capital letter• Recessive gene: only shows if it is

alone• Written with lower case letter• Co-dominant gene: two genes

there, both show

• The table below shows some

dominant and recessive traits discovered by Mendel in pea plants. Base your answers to questions 4-7 on the chart.

Trait Dominant Recessive

Seed shape Round (R) Wrinkled (w)

Seed color Yellow (Y) Green (g)

Pod color Green (G) Yellow (y)

Flower color Purple (P) White (h)

Stem Height Tall (T) Short (s)

How could you get 100% white flowers in the

offspring?• And the answer is• hh x hh

Cross RR with ww

• Predict % wrinkled % round

Cross a Tall pea (Ts) with Ts

• Predict % tall, and % short

Fission (binary fission)

• Asexual (1 parent cell)• Doubles DNA, and splits into 2

clones• sketch:

Conjugation

• 2 protists Swap DNA at the oral groove

• Sexual or asexual? Why?• Sketch:

Budding

• Baby grows on side of parent• Sexual or asexual? Why?

Regeneration

• Grow back parts,or grow a new organism from parts

• Sexual or asexual? Why?

Fertilization

• Sperm from male enters Egg from female

• Sexual or asexual? Why?• sketch

Mitosis

• Where is DNA?• Answer questions

Body Cell reproduction

• Name a body cell• Process where cell is created is • mitosis• # chromosomes in human body

cell is • 46 (23 pair)• sketch

Gamete (reproductive cell)

• Name reproductive cells• Sperm and egg• Process where cell is created is • meiosis• # chromosomes in egg and sperm is • 23• sketch

Photosynthesis and Respiration

• Cell part that does photosynthesis

• Chloroplast• 2 factors needed • Water, carbon

dioxide, sun• Root function?• Soak up water (in

xylem)

Photosynthesis and Respiration

• Gas used to make glucose

• Carbon dioxide• Gas excreted by

mice when using sugar to make energy

• gas is CO2

Scientific Method

• Hypothesis• Control• Carton with 3 seeds• Independent variable• Distance between seeds• Dependent variable (IT DEPENDS

ON WHAT YOU……)• Height of plants

Scientific Method

• Constants and why

Discuss Amy adding fertilizer

ECOLOGY• Producer:• Green plant

(makes own food)• Consumer: • Eats for energy• Decomposer:• Eats dead things:

Bacteria, worms, insects, mushroom, mold

Ecology • Sketch a food

web• Start with?• Which way do

arrows go? What do arrows mean?

Ecology • Energy pyramid• Start with?• Indicate %

energy (trophic) at each level

Ecology • Source of energy for the

web/pyramid?• Sun• Herbivore eats• Plants• Omnivore eats• Plants and animals• Carnivore eats• meat