Unit 3 -bio 10

Question 1

Abiogenesis

Answer 1

technical term for spontaneous generation.

Question 2

Active Transport

Answer 2

the movement of ions or molecules across a cellular membrane from a lower to a higher concentration, requiring the consumption of energy.

Question 3

Adhesion

Answer 3

The tendency of water molecules to dtick to certain surfaces

Question 4

Auxin

Answer 4

The plant growth hormone produced in plant tips

Question 5

Biogenesis

Answer 5

the production of living organisms from other living organisms. (Living things come from living things)

Question 6

Cell Theory

Answer 6

1. All organisms are composed of one or more cells
2. The cell is the smallest functional of life
3. All cells are produced from other cells

Question 7

Chloroplasts

Answer 7

An organelle containing chlorophyll, where photosynthesis takes place.

Question 8

Cohesion

Answer 8

The tendency of water molecules to stick to other water molecules

Question 9

Compound Light Microscope

Answer 9

A microscope with two or more lenses that is used to veiw objects illuminated by visible light

Question 10

Concentration Gradient

Answer 10

The difference in concentrations of a substance between two areas.

Question 11

Confocal Laser Scanning Microscope

Answer 11

laser beam is directed at various planes of the specimen, producing a series of 2D images that can be stacked to produce a 3D image

Question 12

Electron Microscope

Answer 12

an extremely powerful microscope that forms an enlarged imagine of specimens using a beam of electrons instead of a beam of light

Question 13

EndoplasmicReticulum (ER)

Answer 13

a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials.

Question 14

Facilitated Diffusion

Answer 14

in cell biology, a process by which substances are transported across cell membranes by means of protein carrier molecules; also called facilitated transport

Question 15

Fluid-mosiac Model

Answer 15

A model of membrane structure that suggests that the molecules that make up membranes can move relative to each other in the 2D of the membrane

Question 16

Golgi Apparatus

Answer 16

The organelle where protiens and lipids from the endoplasmic reticulum are modified, repackaged, and distributed to other locations in the cell

Question 17

Guard Cells

Answer 17

either of two specialized epidermal cells that flank the pore of a stoma and usually cause it to open and close.

Question 18

Gravitropism

Answer 18

Gravitropism is a turning or growth movement by a plant, fungus, or animal in response to gravity.

Question 19

Hydrophilic

Answer 19

Attracted to water

Question 20

Hydrophobic

Answer 20

Repelled by water

Question 21

Hypertonic

Answer 21

Having a higher concentration of solute

Question 22

Hypotonic

Answer 22

Having a lower concentration of solute

Question 23

Isotonic

Answer 23

Having a same concentration of solutes

Question 24

Mitochondria

Answer 24

The organelle where food molecules are broken down into energy tat can be used by the cell

Question 25

Organ

Answer 25

A combination of various types of tissues that work together to perform a specific function (eg., a heart or a leaf)

Question 26

Organelles

Answer 26

A specialized, usually membrane bound, part of a cell with specific function (e.g., chloroplast)

Question 27

Osmosis

Answer 27

Diffusion in water

Question 28

Passive Transport

Answer 28

The movement of substances across the cell membrane along their concentration gradient (does not need an input energy)

Question 29

Phospholipids

Answer 29

A lipid with one or more phosphate groups attached to it.

Question 30

Photosynthesis

Answer 30

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Question 31

Phototropism

Answer 31

the orientation of a plant or other organism in response to light, either towards the source of light ( positive phototropism ) or away from it ( negative phototropism ).

Question 32

Spontaneous Generation

Answer 32

the supposed production of living organisms from non-living matter, as inferred from the apparent appearance of life in some infusions.

Question 33

Stomata

Answer 33

any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width which allows movement of gases in and out of the intercellular space

Question 34

Transpiration

Answer 34

the passage of gases through fine tubes because of differences in pressure or temperature

Question 35

Turgor Pressure

Answer 35

pushes the plasma membrane against the cell wall of plant, bacteria, and fungi cells as well as those protist cells which have cell walls.

Question 36

Vacuoles

Answer 36

a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.