I Like Big Cells + I Cannot Lie
This type of system allows for energy to move in and out, but matter cannot move in and out
What is..
a closed system
This describes the process of making an image clearer
What is ...
resolution
This term describes the movement of molecules from an area of high concentration to an area of low concentration, and does NOT require a membrane
What is...
Diffusion
This plant organ is responsible for the bulk of photosynthesis.
What is...
the leaf!
This type of tropism is in response to light
What is ...
Phototropism
These organelles are found only in animal cells
What are...
lysosomes
This equation is used to calculate the total magnification of a microscope
What is..
Mtot = objective lens * ocular lens
This term describes the movement of water across a semi-permeable membrane in an attempt to equalize concentrations
What is...
Osmosis
This vascular component has sieve tubes and is made of living tissue. It also is capable of transporting sap both ways
What is...
The Phloem
This type of tropism is the best exemplified by carnivorous plants, such as a Venus fly trap.
What is...
positive thigmotropism
The 3 tenets of cell theory
What is...
1. the cell is a fundamental unit of life.
2. all living things are made of cells
3. all cells come from pre-existing cells
This method is used to increase the contrast and detail present in microscopy
What is...
staining!
This type of movement must occur across a membrane with substances that are either large or charged
What is...
Facilitated diffusion
This plant tissue stores air and resembles a famous yellow Nickelodeon character.
What is...
the spongy mesophyll
This hormone is responsible for the growth of stems in plants.
What is... Auxin
This model is used to describe the structure of cellular membranes
What is...
the fluid mosaic model
This microscope is the most common method of live-cell imaging, and is capable of observing and measuring physiological states
What is...
Confocal Fluorescence Microscopy
This process describes a macrophage engulfing (swallowing) a bacteria that was flagged as a foreign invader.
What is...
endocytosis
The transpiration stream relies on these two main forces to maintain a continuous column of water in the xylem.
What is...
cohesion and adhesion
The main finding of Darwin's plant experiments
What is...
the tip of the plant is linked to growth
An octopus has gill structures made of many thin filaments. A single filament can be approximated as a rectangular prism with the dimensions: length = 10 mm, Width = 1 mm, Height = 0.5 mm.
Calculate the surface area to volume ratio of one filament.
BONUS 100: explain why this shape is beneficial for gas exchange.
What is ...
6.2 : 1 ratio
BONUS: increasing rates of diffusion to maximize transfer of gases!
A scientist observes a sample of bacteria taken from a stool sample. The eyepiece lens has a magnification of 10x, and the objective lens has a magnification of 40x. The scientist takes a photomicrograph of the bacteria, in which the average size of each cell was 22 mm. What is the average size of the bacteria in the sample, given in MICROMETERS.
What is...
55 um
A freshwater fish is placed into ocean water, with a saline concentration of 7%. What is the term to describe the fish, the water it is in, and which direction will the water move in?
What is...
fish is hypotonic
water is hypertonic
water will move out of fish and it will shrink
what is...
1. sugar moved from leaf to phloem via active transport
2. sugar pulls in water from phloem via osmosis
3. turgor pressure increases in phloem and sap can move up and down the phloem
4. when the sugar gets to it's stop, it is moved into the sink via active transport
5. sugar in the phloem decreases and water moves back into the xylem
What is...
Promotes growth in the shoot system to grow upwards (negative geotropism)
Inhibits growth in the root system to grow downwards (positive geotropism)