Question

which layer of outer membranes exist in all eukaryotic cells? none of these cell wall both...

which layer of outer membranes exist in all eukaryotic cells?

none of these

cell wall

both of these

Plasma membrane


which of the following is not an organelle of eukaryotic cells?

fimbrae

cytoskeleton

nucleus

golgi

emerging and reemerging diseases is a challenge facing science?

No answer text provided.

No answer text provided.

true

false

The smallest unit that is considered to be alive.

none of these

atoms

cell

tissues

which of the following types of cells have a plasma membrane?

plant cells

Animal cells

prokaryotic

all of these

which organelle in eukaryotic cells processes, packages, and distributes protiens and lipids?

rough ER

nucleus

cytoskeleton

golgi apparatus

The plasma membrane is made up of two layers of what?

phospholipids

glucose

none of these

cellulose


What kind of bonds attracts molecules of water to each other and create surface tension?

none of these

Hydrogen Bonds

ionic bonds

covalent bonds

Regardless of the number of electron shells and atom has, the outermost shell is called the ____________ shell?

last shell

cloud shell

valence shell

octet shell



All electron shells of an atom after the first need how many electrons to be full?

8

4

10

2


cellulose is made of what?

lipids

protein

carbohydrates

nucleic acid


what kind of bond is formed when two atoms share electrons?

covalent bonds

ionic bonds

none of these

hydrogen bonds


Collegen and elastin are fibers in what?

cytoskeleton

Extra cellular matrix

Plasma membrane

golgi apparatus


the plasma membrane is

totally permeable

all of these

not permeable

selectively permeable

which of these is an example of a glycoprotein?

both of these

Cell recognition proteins

channel protein

none of these
What kind of reaction joins amino acids together and releases water

dehydration reaction

exothermic reaction

hydrolysis reaction

none of these


which is the smallest fiber of the cytoskeleton?

they are all the same size

actin filaments

intermediate fibers

microtubules

which of the following organelles were thought to be their own cells that were taken up other prokayotic cells. these evolved together with the host cell to become eukaryotic cells

chloroplast

both of these

neither of theses

mitochondria


Cristae are part of what organelle?

both of these

golgi

neither of these

Rough ER


Where does photosynthesis occur in plant cells

mitochondria

central vacuole

none of these

chloroplast


which layer of outer membranes exist in prokaryotic cells

all of these

cell wall

Plasma membrane

capsule


The combination of protein and DNA in the nucleus of eukaryotic cells is

chromatin

stuff

nucleoprotein

none of these


Monosaccharides have how many sugars in a chain?

2

many

1

3


phosphlipids have how many nonpolar hydrocarbon tails attached to the phosphate head?


2

4

1

3

DNA does not ever use which of the following bases?

uracil

cytosine

thymine

guanine

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Answer #1

Answer 1- d) plasma membrane

Reason- All eukaryotic cells have a plasma membrane or cell membrane. It is made up by a phospholipid bilayer with embedded proteins.

Answer 2- a) fimbrae

Reason- fimbrae are the appendage, found on Gram-negative and some Gram-positive bacteria. objectsIt is used to adhere a bacteria to another.

Answer 3- a) true

Answer 4- c) cell

Reason- cell is considered as the fundamental unit of life. Group of cells form tissues.

Answer 5- d) all of these

Reason- all the cells contains cell membrane or plasma membrane. It is protects the cell contents from the external environment.

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