BIOLOGY MID-TERM EXAM

BIOLOGY MID-TERM EXAM

-Cell Transport and Communication

-Osmosis

-ATP and ATP Synthase

-Photosynthesis

Exam Directions

Your exam will be divided into four sections. The questions will be multiple choice, true and false, and check box questions. Questions and answer choices can be read to you by clicking the read button in the bottom left corner. Also, each question allows you up to 15 MINUTES to answer....so relax, you got this!!

CELL TRANSPORT and COMMUNICATION

SECTION ONE

Multiple Choice

Which illustration of transport across the membrane requires energy?

• A

• B

• C

• D

Multiple Select

These are all examples of active transport. (Check all that apply.)

• Protein Pump

• Exocytosis

• Facilitated Diffusion

• Endocytosis

• Osmosis

Multiple Choice

When a cell forms a vesicle around unwanted particles and expels it OUT of the cell

• EXOCYTOSIS

• ENDOCYTOSIS

Multiple Choice

In this image, the cell is using which type of molecular transport?

• ENDOCYTOSIS

• EXOCYTOSIS

Multiple Choice

Facilitated diffusion is the movement of materials into and out of the cell

• with the use of energy

• with the use of proteins but NOT energy

• by using ATP

Multiple Choice

Semi-permeable mean to allow

• all materials across the membrane

• no material to cross the membrane

• only some materials across the membrane

Multiple Choice

In PASSIVE TRANSPORT, substances move from:

• Low concentration to high concentration

• High concentration to low concentration

Multiple Choice

In ACTIVE TRANSPORT, substances move from:

• High concentration to low concentration

• Low concentration to high concentration

Multiple Choice

In ACTIVE TRANSPORT, energy is not required.

• TRUE

• FALSE

Multiple Choice

In PASSIVE TRANSPORT, energy is required.

• TRUE

• FALSE

Multiple Select

These are all examples of passive transport. (Check all that apply.)

• Diffusion

• Facilitated Diffusion

• Osmosis

• Endocytosis

• Exocytosis

OSMOSIS

SECTION TWO

Multiple Choice

Osmosis is the diffusion of _____ across a selectively permeable membrane.

• Food

• Water

• Oxygen

Multiple Choice

In a solution, salt is considered the _______.

• solution

• solvent

• salute

Multiple Choice

In this given scenario, corn syrup is hypertonic to an egg with a dissolved shell. What will happen to the egg when it is place in corn syrup?

• It will stay the same.

• It will shrink- get smaller.

• It will swell- get bigger.

Multiple Choice

What does selectively-permeable mean?

• The cell controls what passes in and out of the cell

• Nothing gets through

• The cell lets only large substances through

Multiple Choice

Both side of a selectively- permeable membrane are equal. The sides are ______.

• isotonic

• hypertonic

• hypotonic

Multiple Choice

If a cell is placed in a hypotonic solution, the cell will _______.

• stay the same

• swell (get bigger)

• shrink (get smaller)

Multiple Choice

In the given scenario what will happen? An egg with a dissolved shell is placed in pure water for 48 hours.

• Water will move in and out of the cell equally, and the cell with neither shrink nor swell.

• The egg will gain water and swell.

• The egg will lose water and shrink.

Multiple Choice

Ideally, your cells should be in a(n) _______ solution

• isotonic

• hypertonic

• hypotonic

Multiple Choice

The picture is an example of _________________.

• osmosis

• diffusion

• active transport

Multiple Choice

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of ___________.

• hypertonic

• equilibrium

• diffusion

ATP and ATP Synthase

SECTION THREE

Multiple Choice

In chemical reactions, energy can be absorbed and released during the

• breaking of bonds

• breaking and forming of bonds

• forming of bonds

Multiple Choice

In cells, chemical energy is gradually released in a series of chemical reactions that are assisted by

• hydrogen ions

• enzymes

• lipids

Multiple Choice

Enzymes are

• molecules with eyes

• a substance that gives another substance or a mixture its color

• proteins that act as catalysts in biochemical reactions

Multiple Choice

Like money, ATP is a portable form of energy "currency" inside cells.

• TRUE

• FALSE

Multiple Select

ATP can be used to

• help make more ATP

• contract a muscle cell

• actively transport protein

Multiple Choice

ATP is a nucleotide made up of a chain of _____________ phosphate groups.

• ONE

• TWO

• THREE

Multiple Choice

When the bond of the third phosphate group is broken,

• energy is stored

• energy is neither released or stored

• energy is released

Multiple Choice

The reaction in which ATP is converted to ADP, much more energy is released than is used during the reaction.

• TRUE

• FALSE

Multiple Select

ATP Synthase

• is an enzyme that catalyzes (speeds up) the synthesis of ATP

• recycles ADP by bonding a third phosphate group to the molecule

• does none of theses things

Multiple Choice

ATP Synthase acts

• as an enzyme

• as a carrier protein for hydrogen ions

• as both an enzyme and a carrier protein for hydrogen ions

Multiple Choice

Osmosis is the diffusion of _____ across a selectively permeable membrane.

• Food

• Water

• Oxygen

PHOTOSYNTHESIS

PART FOUR

Multiple Choice

The thylakoid membrane produces flat, disc-like sacs called __________ that are arranged in stacks.

• pigments

• carotenoids

• thylakoids

Multiple Choice

Photosynthesis is the process that provides energy for ....

• Plants

• Animals

• Almost ALL life

Multiple Choice

Within the inner membrane of the chloroplast is the

• stroma

• thylakoid membrane

• both the stroma and the thylakoid membrane

Multiple Choice

_________ are the organelles that convert light energy into chemical energy

• Chloroplasts

• Hydrogens

• Pigments

Multiple Choice

Thylakoids are arranged in stacks and contain molecules that absorb light energy for photosynthesis.

• TRUE

• FALSE

Multiple Select

The part of the electromagnetic spectrum that we can see is

• Gamma waves

• Radio waves

• Light waves

• Microwaves

Multiple Choice

Which plant pigment absorbs red and blue light, and reflects green and yellow light?

• Hydrogen Ions

• Carotenoid

• Chlorophyll

Multiple Choice

Plants also have pigments called _____________, which help plants absorb additional light energy.

• chlorophyll

• carotenoid

• chloroplast

Multiple Choice

__________is a green pigment in chloroplasts that absorbs light energy to start photosynthesis.

• Stroma

• Chlorophyll

• Carotenoid

Multiple Choice

is a substance that absorbs certain wavelengths (colors) of light and reflects all of the others.

• Stroma

• Chloroplast

• Pigment

Multiple Choice

Sunlight contains ____________________, which we see as different

colors.

• none of the wavelengths of visible light

• most of the wavelengths of visible light

• all the wavelengths of visible light