e coli bacteria

1. the 7 main differences between bacteria and eukaryotic cells are:

internal compartmentalization-no nucleus

cell size- most bacterial cells are small

multicellularity- all bacteria are single cells

chromosomes- consists of a single circular piece of DNA.

reproduction- reproduce by binary fission.

flagella- simple structures composed of a single fiber.

metabolic diversity- bacteria perform several different kinds of anaerobic and aerobic processes.

2.

Spirillum

Bacillus
Coccus

3. Bacteria can have two types of cell walls, distinguished by a dye staining technique, called the Gram stain. The two groups differ in their susceptibility to different antibiotics.

4. Conjugation is a process in which two organisms exchange genetic material.

5.

cell structure- it has no organelles and its genetic material is not enclosed.

it moves on its own, by rotating its slender whiplike flagella.

most bacteria reproduce by binary fission, a process by which a single cell divides into two identical new cells.

e coli bacteria

vocab words

biology- the study of life.



cells- highly organized, tiny structures with thin coverings called membranes.



reproduction- the process by which organisms make more of their own kind.



metabolism- the sum of all of the chemical reactions carried out in an organism.



homeostasis- changes in the external environment.



genes- sets of inherited instructions for making protiens.



heredity- passing of traits from parent to offspring.



mutation- a change in the DNA of a gene.



evolution- change in the inherited traits of species over time.



species- a group of genetically similar organisms that can produce fertile offspring.



natural selection- organisms with favorble genes are more likely to survive and reproduce.



ecology- the science that studies the interactions of living organisms with one another and with the non-living part of their environment.

cubs catapult

There are 3 laws of motion
Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

The relationship between an object's mass, its acceleration a, and the applied force. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.

For every action there is an equal and opposite reaction.


OBJECT
Distance
Weight
Plastic wheel
403.5 cm
2.8 g
Eye bolt
746 cm
2.1 g
Screw
383 cm
4.1 g


1st law of motion the spring being released is the unbalanced force

2nd law of motion was the screw it was the heaviest so it landed the closest.

3rd law of motion- the spoon is the action force and the object is the reaction force.