Honors Biology Exam

1.

1 point

Light-Independent Reactions in plants proceed in the _____ of chloroplasts.

Thylakoid membrane

Stroma

Plasma membrane

Cytoplasm

2.

1 point

What two molecules produced by the light-dependent reactions are necessary for the light-independent reactions to take place?

ATP and NADPH

Glucose and Carbon Dioxide

Water and Oxygen

Chlorophyll and H+ Ions

3.

1 point

The best definition of biology is the Science of_____

Life

The Human Body

Living Organisms

Plants and Animals

4.

1 point

All of the following have the potential to alter enzymatic activity. which is the only one that does so without affecting enzyme conformation?

Change in Salinity

Change in pH

change in substrate concentration

change in temperature

5.

1 point

the folding of the inner membranes of the mitochondria provides what advantage to aerobic respiration?

Better absorption of glucose into the matrix

Better storage of sugars

More surface area for the reactions to produce more ATP

Being double-layered, the folded membranes help prevent oxygen from entering the matrix

6.

1 point

In the third stage of aerobic respiration, _________ is the final electron acceptor.

NADH

Water

Hydrogen

Oxygen

7.

1 point

what is the photosynthesis chemical equation?

C6H12O6+6CO2 ---> 6O2+6H2O

6CO2+6H2O ---> C6H12O6+6O2

6O2+6H2O ---> C6H12O6+6CO2

6O2 +6CO2 ---> C6H12O6+6H20

8.

1 point

The pigment in photosystem I absorbs at what wavelength?

780 nm

600 nm

680 nm

700 nm

9.

1 point

In eukaryotes, aerobic respiration is completed in the ________.

plasma membrane

mitochondria

nucleus

cytoplasm

10.

1 point

Chlorophyll a appears green because it absorbs mainly ______ light.

Blue and Violet

Green and Yellow

Violet and Red

Blue and Yellow

11.

1 point

Groups of bacteria living together in a close knit group are also known as ________.

Biofilms

Eukaryotes

All of these

Pathogenic Bacteria

12.

1 point

_______ cannot easily diffuse across a lipid bilayer

Water

Gases

Ions

All of the Above

13.

1 point

This organelle is involved in lipid production.

Smooth ER

Rough ER

Golgi Bodies

Lysosomes

Ribosomes

14.

1 point

All living things in a given area with nonliving enviroment

Population

Species

Ecosystem

Community

15.

1 point

Which of the following is a type of passive transport?

Osmosis

facilitated diffusion

simple diffusion

all of the above

16.

1 point

With the oxidation of NADH and FADH2 during the electron transport chain, hydrogen ions are concentrated into the ________ by a series of protein complexes embedded in the membrane.

Cell's Cytosol

Matrix

Cristae

Inner Membrane Space

17.

1 point

Structure Composed of one or more tissue

Organ System

Organ

Organism

Cell

18.

1 point

Contains enzymes for intracellular digestion

Golgi Bodies

Rough ER

Smooth ER

Ribosomes

Lysosomes

19.

1 point

Which molecule does not form during glycolysis?

Pyruvate

FADH2

ATP

NADH

20.

1 point

Osmosis is the _____

diffusion of water

diffusion of glucose and proteins

active transport of water, ions, or small molecules

diffusion of ions and small molecules

21.

1 point

Which is a correct sequence of polypeptide transport in the endomembrane system?

ribosome --> golgi bodies --> ER --> exits the cell

plasma membrane --> golgi bodies --> ER --> ribosome

plasma membrane --> ER --> golgi bodies --> ribosome

ribosome --> ER --> golgi bodies --> exits the cell

golgi bodies --> ribosomes --> ER --> exits the cell

22.

1 point

Which of the following generates ATP?

ER

mitochondria

ribosomes

golgi body

23.

1 point

Where in cells are proteins synthesized by ribosomes bound to its membrane?

vesicles

golgi body

rough ER

smooth ER

24.

1 point

The domains of life include which of the following?

Archae, Animals, Plants

Bacteria, Eukarya, Archae

Bacteria, Protist, Fish

All of the Above

25.

1 point

The BEST microscope to use to view internal features of specimens is the

compound light microscope

dissecting light microscope

scanning electron microscope

transmission electron microscope

26.

1 point

Which order of organizational levels is correct from smallest to largest?

Community, biosphere, ecosystem

Population, community, biosphere

Ecosystem, community,population

Population, community, ecosphere

27.

1 point

These organelles convert light energy into chemical energy stored in the chemical bonds of glucose or starch, the process of photosynthesis.

chloroplasts

ribosomes

nucleoli

microtubules

mitochondria

28.

1 point

Autotrophs use _______ as an energy source to drive photosynthesis.

sunlight

CO2

O2

hydrogen ions

29.

1 point

If we compare a chemical reaction to an energy run, the a(n) __________ reaction is an uphill run

Endergonic

Exergonic

Catalytic

Both a and b

30.

1 point

What is the main difference between passive transport and active transport?

Active transport needs energy, passive doesnt

Passive transport needs energy, active transport doesnt

Only passive transport involves a protein

Only active transport can transport ions across the cell membrane

31.

1 point

An organelle that pinches off portions of its membrane to form a transport vesicle is the ________.

mitochondria

golgi body

nucleolus

chloroplast

32.

1 point

Light Dependent Reactions in plants proceed in the ______.

thylakoid membrane

plasma membrane

cytoplasm

stroma

33.

1 point

Enzymes ____________________

Are proteins, except for a few RNAs

Lower the activation energy of a reaction

Are changed by the reactions they catalyze

Both a and b

34.

1 point

Which of the following is one of the two main functions of the nuclear envelope?

Enables faster cell division

provides residence for ribosomes

Enables larger cell size

allows separation of DNA from cytoplasm contents

35.

1 point

The first person acknowledged to have seen living, moving cells by using a microscope was

Robert Hooke

Robert Brown

Rudolf Vichow

Anton van Leeuwenhoek

36.

1 point

Which of the following directly controls the movement of molecules into and out of the cell

Cytoplasm

Large central vacuole

Plasma membrane

Nucleus

Ribosomes

37.

1 point

the cyclic reactions of photosynthesis involve the following photosystems:

photosystem I

photosystem II

both a and b

neither a or b

38.

1 point

What happens to the carbon in glucose as the molecule is broken down by aerobic respiration?

It is incorporated into ATP molecules

It bonds to NAD+ and FAD coenzymes

It leaves as carbon dioxide gas

It is processed into either lactate or ethanol

39.

1 point

What is the primary purpose of NADH and FADH2 in respiration?

To phosphorylate ADP to ATP

To carry electrons to the electron transport chain

To regulate respiration

To bind to oxygen molecules

40.

1 point

One generalization of the cell theory is that

All cells have a nucleus

All cells have cell walls

Cell is the smallest unit that displays characteristics of life

Cells can arise from nonliving matter

41.

1 point

The rough ER is covered by _________.

Plasmids

Glucose

Ribosomes

Cholesterol

Lipids

42.

1 point

Glycolysis starts and ends in the ___________.

Plasma Membrane

Nucleus

Cytoplasm

Mitochondria

43.

1 point

Each atom of element has same number of

Protons

Electrons

Neutrons

None

44.

1 point

Ions of molecules tend to diffuse from a region where they are ____ concentrated to another where they are ____ concentrated.

More; Less

Less; More

45.

1 point

Prokaryotes _________________.

may have cell walls

are either bacteria or archaeans

have nucleoid regions

are or have all of these

are unicellular

46.

1 point

Which of the following represents an overall exergonic set of reactions?

Glucose + Fructose ---> Sucrose

polysaccharides ---> monosaccharides

Glycerol + Fatty Acids ---> Triglycerides

Amino Acids ---> Proteins

47.

1 point

Which of the following metabolic pathways requires oxygen?

all of the above

aerobic respiration

lactate fermentation

alcoholic fermentation

48.

1 point

_____ bonds form between adjacent water molecules

Hydrophobic

Hydrogen

Covalent

Ionic

49.

1 point

Four of the five items listed below are organelles found in eukaryotic cells. Select the exception.

Large Central Vacuole

Golgi Body

Nucleoid

Mitochondria

Lysosome