Question

A scientist finds an unusual living thing and decides to study it.



Which observation indicates that the living thing is among the smallest types of living things?



A.
It is multicellular.


B.


It does not have a nucleus.


C.
It possesses a membrane-bound nucleus.


D.
It possesses a hard outer shell.

Answer 1

b

Answer 2

Can you help me with more? @issues101 I have 17 questions.. >;I

Answer 3

but doesnt A count?

Answer 4

oh gosh. but sure

Answer 5

I'm not good at Science.. I'm mainly good at Math XD

Answer 6

Which feature is found in prokaryotic cells but not in eukaryotic cells?



A.
plasma membrane


B.
nucleoid


C.
cytoplasm


D.
nucleus

Answer 7

Which phrase describes the role of the mitochondria?



A.


where genetic material is housed


B.


where cells control water content


C.


the powerhouse of the cell


D.


where proteins are manufactured

Answer 8

c

Answer 9

C? maybe.. im not sure

Answer 10

Which statement best describes the role of the cell membrane?



A.


It produces proteins.


B.


It breaks down food particles.


C.


It stores genetic material.


D.


It encloses the cytoplasm.

Answer 11

Btw it's based on Cells <3

Answer 12

d

Answer 13

Cell membrane acts like a boundary and encloses the cell.

Answer 14

Sorry, openstudy wouldn't load so I had to restart my computer, and now my browser isn't loading for my quiz -.-

Answer 15

my computer does that to me to -_-

Answer 16

Give me a couple seconds cx

Answer 17

Okais, done!.. Which statement best describes the role of the cell membrane?



A.


It produces proteins.


B.


It breaks down food particles.


C.


It stores genetic material.


D.


It encloses the cytoplasm.

Answer 18

d

Answer 19

Which organelles are found in both plant and animal cells?


A.
ribosomes and lysosomes


B.
mitochondria and nucleus


C.
nucleus and cell wall


D.


chloroplasts and ribosomes

Answer 20

im thinking b

Answer 21

Which two features indicate that a cell is a plant cell and not an animal cell?



A.
lysosome, vacuole


B.
nucleus, lysosome


C.
cell membrane, flagella


D.
cell wall, vacuole

Answer 22

I have to go eat lunch soon D:

Answer 23

d

Answer 24

Which structures are found in both plant and animal cells?



A.
a cell membrane and genetic material


B.
lysosomes and ribosomes


C.


a nucleus and chloroplasts


D.
vacuole and ribosomes

Answer 25

10 more questions :L

Answer 26

b

Answer 27

Which is one purpose of cell division?



A.


to repair tissue


B.


to produce proteins


C.


to obtain food


D.


to use energy

Answer 28

b

Answer 29

Which statement best describes the relationship among proteins, DNA, and RNA?



A.


DNA makes RNA, and RNA makes proteins.


B.


RNA makes DNA, and DNA makes proteins.


C.
Proteins make RNA, and RNA makes DNA.


D.


Proteins make DNA, and DNA makes RNA.

Answer 30

a

Answer 31

Which phrase best describes DNA?


A.
the structure made of connected amino acids


B.
the structure that transports copied information to the ribosomes


C.


the molecule from which RNA is produced


D.


the molecule that reads the coded information and then leaves the nucleus

Answer 32

b

Answer 33

What benefit does diffusion provide the cell?


A.
carries out meiosis


B.
produces protein


C.
divides the cytoplasm


D.


carbon dioxide moves in and out of the cell

Answer 34

d

Answer 35

Which two cellular structures have a role in the creation of proteins?


A.
ribosomes and mitochondria


B.
nucleus and mitochondria


C.
nucleus and ribosomes


D.
mitochondria and nuclear membrane

Answer 36

5 More questions, by the way, what grade are you in?

Answer 37

c and 11th

Answer 38

Which phrase best describes osmosis?



A.


the process where a selectively permeable membrane allows the movement of water through it


B.


the process of DNA synthesis


C.


the process where distribution of molecules is balanced out by their movement


D.


the process by which the cytoplasm physically divides

Answer 39

Oh, I'm in 7th, all my siblings are mainly good at ELA or Math >:L

Answer 40

a

Answer 41

Which phrase best describes cellular respiration?



A.


the process where there is a movement of water across a membrane


B.


the physical division of the cell's cytoplasm


C.


the process that cells use to obtain energy from food


D.


the process where there is a movement of molecules to balance out their distribution

Answer 42

c

Answer 43

This illustration drawn by a scientist is based on observations of a cell under a microscope. Which statement best describes the anaphase of mitosis?

Examining cells



A.


This stage is where the spindle fibers pull away from the cell's center.


B.


In this stage, the chromosomes begin to spread out across the center of the cell.


C.


In this stage, the unneeded spindle begins to break down.


D.


This stage makes the cell's chromosomes more compact before the nucleus breaks down.

Answer 44

There's an image:

Answer 45

a

Answer 46

A scientist is studying a unicellular organism. The organism normally looks like image A. Then the scientist places the cell in two different solutions. In the first solution, the cell changes to look like image B. In the second solution, it changes to look like image C.



Which statement describes the solution and process that would cause a cell to look like the cell labeled B?





A.
Too much sugar water moved out of the cell.


B.
Too much water moved into the cell.


C.
Too much saline moved into the cell.


D.
Too much water moved out of the cell.

Answer 47

Another image:

Answer 48

d

Answer 49

The small circles represent molecules of oxygen. What will eventually happen to the oxygen molecules when they are in a higher concentration outside the cell?





A.
Oxygen will diffuse from an area of higher concentration (inside the cell) to an area of lower concentration (outside the cell).


B.
Oxygen will diffuse from an area of lower concentration (inside the cell) to an area of higher concentration (outside the cell).


C.
Oxygen will diffuse from an area of lower concentration (outside the cell) to an area of higher concentration (inside the cell).


D.
Oxygen will diffuse from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell).

Answer 50

Last question ;D

Answer 51

c

Answer 52

64% D: Welp, going to have to retake the test.. Thanks anyways..