Question

Please help i can't figure this one out!! i will fan


What did Louis Pasteur's experiment contribute to cell theory?

The fact that all organisms consist of cells

The evidence that cells are the basic unit for all organisms

The proposal that cells are living organisms

The proof that cells only come from other cells

Answer 1

The evidence that cells are basic units for all organisms.

Answer 2

thank you!! can you check my other ones???

Answer 3

@graciek

Answer 4

Yeah, just show me which ones.

Answer 5

Which of the following best describes the relationship between the structure of the cell membrane and its function?
The cell membrane folds upon itself easily, which facilitates cellular reproduction by mitosis.
The membrane is rigid and inflexible preventing the movement of substances across the cell membrane.
The outer layer of the membrane is hydrophilic, which allows water to flow in and out of the cell easily to eliminate waste.
The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell.

Answer 6

this is one that i couldn't figure out

Answer 7

@graciek

Answer 8

im pretty sure its the last one

Answer 9

thank you!

Answer 10

No problem!

Answer 11

i have a couple more. can you check them

Answer 12

Yeah.

Answer 13

Cellular respiration is a process involving the breakdown of glucose molecules in order to generate energy for cellular activities. Given the general reaction below, which of the following best describes the products labeled x and y?

C6H12O6 + O2 → _x___ + __y___ + energy

The products are CO (carbon monoxide) and H2O2 (hydrogen peroxide), which then decompose into carbon dioxide (CO2) and water (H2O).
The products are H2O (water) and CO2 (carbon dioxide), which then undergo anaerobic respiration.
The products are CO2 (carbon dioxide) and H2O (water), which then become the reactants for photosynthesis.
The products are O2 (oxygen) and H2O (water), which are then used for growth and to keep the organism hydrated.

Answer 14

sorry this is the last one i couldn't figure out

Answer 15

All eukaryotic cells have a cytoskeleton, including plant cells, which have cell walls as well. What does the cytoskeleton in a plant cell do that the cell wall cannot?

It acts as a framework inside the endoplasmic reticulum and keeps it from collapsing.
It helps keep the organelles in place and directs their movement as needed.
It provides energy and helps to move molecules throughout the cell.
It keeps the DNA safely enclosed in the nucleus and holds the nucleus together.

Question 20 (Multiple Choice Worth 2 points)

(02.02 HC)

Water (H2O), carbon dioxide (CO2), and oxygen (O2) are all quite small molecules, yet they move across cell membranes differently. Both CO2 and O2 passively diffuse across the cell membrane directly while H2O moves across the cell membrane by facilitated diffusion. What can be concluded about these three molecules based on the way they react to the cell membrane?

The water molecules are attracted to the lipid tails of the cell membrane, but the carbon dioxide and oxygen molecules are not.
The water molecules are too small to pass between the lipid tails of the cell membrane, while the molecules of carbon dioxide and oxygen are not.
The water molecules are repelled by the lipid tails of the cell membrane, but the carbon dioxide and oxygen molecules are not.
The water molecules are too large to pass between the lipid tails of the cell membrane, while the molecules of carbon dioxide and oxygen are not.

Answer 16

both C right?

Answer 17

for the last two i just posted

Answer 18

The products are CO2 (carbon dioxide) and H2O (water), which then become the reactants for photosynthesis is the answer for the first one you asked. and let me look at the other ones real quick.

Answer 19

the other one would be " It provides energy and helps to move molecules throughout the cell."

Answer 20

so not c

Answer 21

and the first or second?

Answer 22

oh wait I'm sorry

Answer 23

what about the last one

Answer 24

When plants wilt, their soft stems and leaves begin to droop. What is going on inside the plants' cells that causes plants to droop like this?

The cell membranes begin to come apart when there is insufficient water around the cells.
The cytoplasm of the cells becomes more concentrated, which slowly poisons the cells.
The cell walls become brittle as they dry out, and some of them collapse.
The central vacuoles in the cells lose water and can no longer help support the cells.

Answer 25

d

Answer 26

Cellular respiration is a process involving the breakdown of glucose molecules in order to generate energy for cellular activities. Given the general reaction below, which of the following best describes the products labeled x and y?

C

All eukaryotic cells have a cytoskeleton, including plant cells, which have cell walls as well. What does the cytoskeleton in a plant cell do that the cell wall cannot?

C

Water (H2O), carbon dioxide (CO2), and oxygen (O2) are all quite small molecules, yet they move across cell membranes differently. Both CO2 and O2 passively diffuse across the cell membrane directly while H2O moves across the cell membrane by facilitated diffusion. What can be concluded about these three molecules based on the way they react to the cell membrane?

C

Answer 27

haha one question at a time next time :p ;)

Answer 28

ok

Answer 29

Anything else?

Answer 30

When plants wilt, their soft stems and leaves begin to droop. What is going on inside the plants' cells that causes plants to droop like this?

The cell membranes begin to come apart when there is insufficient water around the cells.
The cytoplasm of the cells becomes more concentrated, which slowly poisons the cells.
The cell walls become brittle as they dry out, and some of them collapse.
The central vacuoles in the cells lose water and can no longer help support the cells.

Answer 31

i chose d

Answer 32

i think thtas right

Answer 33

awesome

Answer 34

Rudolf Virchow's and Louis Pasteur's work resulted in significant contributions to cell theory but also

contradicted earlier cell theories significantly
completed the work on the main ideas of the cell theory
remained unpublished until after their deaths


contradicted the accepted belief in spontaneous generation

Answer 35

d

Answer 36

thats right

Answer 37

Why does darkness affect the light-independent reactions of photosynthesis?

Plants stop their daytime activities and rest during the night much like animals do.
Light independent reactions need more heat energy than nighttime temperatures often provide.
Light independent reactions require the energy gathered in the thylakoids.
Mitochondria produce sugars more effectively in the darkness than chloroplasts do.

c

Answer 38

Light independent reactions require the energy gathered in the thylakoids

Answer 39

Runners only have enough stored ATP in their muscle cells to run for about five seconds. Which answer correctly explains how the runner’s body adjust to the longer distance, for example, a marathon (42.1 km)?

The runner's body will convert stored fat molecules into energy.
The runner's body will create the needed energy by breaking down proteins.
The runner's body will supply the needed energy by producing starch.
The runner's body will produce the energy by activating the Golgi apparatus.

Answer 40

a

Answer 41

i think its c

Answer 42

that was my other choice

Answer 43

are you sure

Answer 44

What did Louis Pasteur's experiment contribute to cell theory?

The fact that all organisms consist of cells
The evidence that cells are the basic unit for all organisms
The proposal that cells are living organisms
The proof that cells only come from other cells

my last question and C

Answer 45

B

Answer 46

for this last one??

Answer 47

yeah

Answer 48

okay thank you so much!!!

Answer 49

for everything

Answer 50

you're welcome