Biology Spring pt 1

1.

1 point

heavy rains: flooding:;

osmosis: proton pumping

high solute concentration: isotonic solution

active transport: ATP

concentration difference: osmosis

2.

1 point

the process of cellular respiration

is performed only by organisms that are incapable of photosynthesis

breaks down food molecules to release stored energy

occurs before plants are able to carry out photosynthesis

occurs only in animals

3.

1 point

channels utilizing facilitated diffusion

work in 2 directions

require an electrical sign to function

both a and b

none of the above

4.

1 point

A cell that can change its shape would be well suited for

receiving and transmitting nerve impulses

covering the body surface

moving to different tissues through narrow openings

all of the above

5.

1 point

numerous threadlike organelles that produce from the surface of a cell and are packed in tight rows are called

flagella

microtubules

actin filiaments

cilia

6.

1 point

heterotrophs are organisms that can

produce food from inorganic molecule and sunlight

survive without energy

consume other organisms for energy

carry out either photosynthesis or chemosynthesis

7.

1 point

ridding the cell of material by discharging it from sacs at the cell surface is called

chemiosmosis

exorcism

exocytosis

endocytosis

8.

1 point

sugar molecules can enter cells through the process of

exocytosis

facilitated diffusion

osmosis

ion pump

9.

1 point

the double membrane surrounding the nucleus is called the

nucleolus

nucelar wall

nucleoplasm

nuclear envelope

10.

1 point

proton pump: protons::

ATP: prtons

channel: protons

sodium-potassium pump: ATP

sodium- potassium pump: sodium

11.

1 point

which of the following is NOT a specialized activity found in cells of Volvox colonies

photosynthesis

transmission of messages

movement

reproduction

12.

1 point

chloroplast: grana::

photosystem: pigment molecules

chlorophyll: pigment

thylakoids: grana

chlorophyll: green

13.

1 point

golgi apparatus are organelles that

receive proteins and lipids from the endoplasmic reticulum

label the molecules made in the endoplasmic reticulum with tags that specify their destination

release molecules in vesicles

all of the above

14.

1 point

During photosynthesis, the series of reactions that create the complex carbohydrates needed for energy and growth is called

the Calvin cycle

the Krebs cycle

the energy flow

carbohydrate loading

15.

1 point

cell membranes

are only found on a small number of cells

contain genes

are made up of dna

are a thin coverings that surround cells

16.

1 point

the packaging and distribution center of the cell is the

nucelus

golgi apparatus

central vacuole

nuclear envelope

17.

1 point

while energy absorbed by one type of chlorophyll molecule is used to form molecules of ATP, electrons from a second kind of chlorophyll molecule are used

in forming molecules of NADPH

to migrate to another proton pump

in the second kind of thylakoid

as a fuel for forming another cholorphyll molecule

18.

1 point

the structure that regulates what enters and leaves the cell is called

the nucleus

the cell wall

the nuclear membrane

the cell membrane

19.

1 point

all organic molecules contain carbon atoms that ultimately can be traced back in the food chain to

the bodies of heterotrophs

carbon dioxide from the atmosphere

water absorbed by plants

the carbon that comes from the sun

20.

1 point

which of the following enters a cell by active transport

glucose

water

sodium ion

potassium ion

21.

1 point

proteins are made in cells on the

mitochondria

ribosomes

nucleus

cell membrane

22.

1 point

the electrons of a photosystem 1

are eventually replaced by electrons from photosystem 2

attach to water molecules during the light reaction

produce molecules of oxygen that enter the atmosphere

are absorbed by oxygen molecules to form water

23.

1 point

proton pumps found in the thylakoid membranes are directly responsible for

moving hydrogen nuclei out of the grana

providing the energy to produce ATP molecules

producing ATP- synthetase

generating glucose molecules

24.

1 point

which of the following enables green plants to convert light energy to chemical energy

the sodium- potassium pump

coupled channels

sugar channels

the proton pump

25.

1 point

Which of the following is a characteristic of prokaryotes

they have a nucleus

they were found on earth before eukaryotes

the organelles in their cytoplasm are surrounded by membranes

none of the above

26.

1 point

the cell membrane

encloses the contents of a cell

allows material to enter and leave the cell

is selectively permeable

all of the above

27.

1 point

One difference between prokaryotes and eukaryotes is that

nucleic acids are found only in prokaryotes

mitochondria are found in larger quantities in eukaryotes

golgi vesicles are found only in prokaryotes

prokaryotes have no nuclear membrane

28.

1 point

ATP

contains five phosphate groups

is essential for a cell to perform all the tasks necessary for life

is found only in bacteria

All of the above

29.

1 point

how are chloroplasts like mitochondria

they both use energy from the sun

they look alike

they both manufacture food and release energy

they are both found in animal cells

30.

1 point

the shape of a protein is determined by

the type and order of its amino acids

its size

is cell location

none

31.

1 point

in which of the following organelles is a cell's ATP produced

mitochondrion

endoplasmic reticulum

golgi apparatus

lysosome

32.

1 point

as a result of photosynthesis

our atmosphere is now rich in oxygen gas

animals can get energy directly from the sun

plants convert chlorophyll into protein channels

abundant quantities of carbon dioxide are available to fuel the Calvin Cycle

33.

1 point

as a result of diffusion, the concentration of many types of substances

always remains greater inside a membrane

eventually becomes balanced on both sides of a membrane

always remains greater on the outside of a membrane

becomes imbalanced on both sides of a membrane

34.

1 point

a structure within a cell that performs a specific function is called

organelle

organ tissue

tissue

biocenter

35.

1 point

NADPH+ is important in photosynthesis because it

becomes oxidized to form NADP

is needed to form chlorophyll

provides additional oxygen atoms

carries hydrogen atoms and energy for producing organic molecules

36.

1 point

which of the following is an example of a prokaryotic cell

amoeba

virus

bacterium

liver cell

37.

1 point

Then name of the process that takes place when organic compounds are broken down in the absence of oxygen

respiration

oxidation

fermentation

all of the above

38.

1 point

which of the following are found in both plant and animal cells, except

a cell wall

a cell membrane

mitochondria

the ER

39.

1 point

light reactions: thylakoids

grana: thylakoids

grana: ATP

dark reactions: stroma

stroma: grana of chloroplasts

40.

1 point

electrons: chemical bonds::

heterotrphs: autotrophs

sunlight: plants

chemical energy: sun

nuclei: atoms

41.

1 point

a protein that fits into the cell membrane

has two polar end sections that bond with water

floats in the cell membrane

has a non polar middle section

all of the above

42.

1 point

A substance, produced during the process of photosynthesis, that is used for completion of cellular respiration is

water

ATP

NADPH

oxygen

43.

1 point

which of the following is not a characteristic of facilitated diffusion

it requires a carrier protein

it moves substances against a concentration gradient

it requires no energy input

it involves a change in the shape of its carrier

44.

1 point

Surface area is an important factor in limiting cell growth because

the cell can burst if the membrane becomes too large

materials can't enter the cell if its too large

the cell may become too large to take in enough food and to remove enough wastes

waste products can't leave the cell if it is too small

45.

1 point

a particularly active cell might contain large numbers of

chromosomes

vacuoles

mitochondria

walls

46.

1 point

what happens when a chlorophyll molecule absorbs a photon of light

some of its electrons are raised to a higher energy level

it disintegrates, giving off huge amounts of heat

it glows, radiating green light and giving the plant a green appearance

red and blue wavelengths are emitted

47.

1 point

one important organelle that helps maintain homeostasis by moving supplies from one part of the cell to the other is the

endoplasmic reticulum

mitochondrion

golgi apparatus

cytoplasm

48.

1 point

which of the following is true of ions and their transport across the cell membranes

the "gates" for ion channels are always open

ions are very small and thus can cross cell membranes readily

electrical or chemical signals may control the movement of ions across the cell membranes

because they are charged particles, the movement of ions across the cell membranes require energy input

49.

1 point

The size to which a cell can grow is limited by its

location

structure

function

surface area

50.

1 point

Energy used in the Calvin cycle for the production of carbohydrate molecules comes from

ATP made during cellular respiration

the Krebs cycle

ATP made in the second stage of photosynthesis

CO2 absorbed during the last stage of photosynthesis