Biology Keystone Module A

Question 1

Organisms can be classified as prokaryotes and eukaryotes. What do they all have in common?

Accepted Answer

plasma membrane and cytoplasm

Question 2

The sodium-potassium pump is a type of

Accepted Answer

active transport

Question 3

These macromolecules serve as a source of stored energy and are components of cell membranes.

Accepted Answer

lipids

Question 4

Which cell is larger, prokaryotic or eukaryotic?

Accepted Answer

Eukaryotic

Question 5

Which is not a property of water vital to supporting life on Earth?

Accepted Answer

bonding

Question 6

In a chloroplasts of a plant cell, which energy transformation most likely occurs?

Accepted Answer

light to chemical

Question 7

What do C and D represent in the following picture?

Accepted Answer

carbon dioxide and water

Question 8

The graph shows enzyme activity. Which best describes what happens to the enzyme at 63 degrees?

Accepted Answer

it changes shape and can no longer speed up the reaction

Question 9

When water freezes, it floats allowing

Accepted Answer

the water below to be insulated and life to be preserved

Question 10

The site of cellular respiration is (#9)

Accepted Answer

mitochondria

Question 11

The following formula represents

Accepted Answer

photosynthesis

Question 12

The following formula represents

Accepted Answer

cellular respiration

Question 13

What do all cells have in common?

Accepted Answer

cell membrane and cytoplasm

Question 14

Lipids are made of

Accepted Answer

glycerol and three fatty acids

Question 15

Which is the smallest and still considered living?

Accepted Answer

cell

Question 16

What is one difference between active and passive transport?

Accepted Answer

Active transport uses ATP

Question 17

Passive transport always

Accepted Answer

goes down the concentration gradient

Question 18

Facilitated diffusion is

Accepted Answer

passive transport

Question 19

A substrate is changed to product in metabolic reactions. What do enzymes do in the reaction?

Accepted Answer

they speed up the reaction

Question 20

The plasma membrane is called "selectively permeable" because it

Accepted Answer

only lets certain substances in and out of the cell

Question 21

A substance that enables a chemical reaction to proceed faster or under different conditions.

Accepted Answer

catalyst

Question 22

The picture is of a

Accepted Answer

cell membrane

Question 23

Which is the largest?

Accepted Answer

community

Question 24

What is the role of ALL enzyme?

Accepted Answer

to speed up a chemical reaction

Question 25

What do A and B represent in the following diagram?

Accepted Answer

sugar and oxygen

Question 26

The movement of WATER through a semipermeable membrane down the concentration gradient is

Accepted Answer

osmosis

Question 27

DNA and RNA are examples of

Accepted Answer

nucleic acids

Question 28

The intermolecular attraction between UNLIKE molecules is called

Accepted Answer

adhesion

Question 29

This organelle contains folded membranes and sacs responsible for transporting materials (#5)

Accepted Answer

Endoplasmic reticulum

Question 30

Sugars, starches, and cellulose are all examples of

Accepted Answer

carbohydrates

Question 31

What is the difference between aerobic and anaerobic respiration?

Accepted Answer

aerobic produces more ATP

Question 32

Proteins are made of

Accepted Answer

amino acids

Question 33

The building blocks (monomers) of carbohydrates are called

Accepted Answer

monosaccharides

Question 34

Biology is the scientific study of

Accepted Answer

life

Question 35

Which BEST compares energy transformations of photosynthesis and cellular respiration?

Accepted Answer

They both store energy in bonds

Question 36

Which of the following is a biotic part of this ecosystem?

Accepted Answer

dolphins

Question 37

Ribosomes make

Accepted Answer

proteins

Question 38

When a cell requires energy for work, that energy is supplied in the form of

Accepted Answer

ATP

Question 39

The movement of particles from an area of high concentration to low concentration is called

Accepted Answer

diffusion

Question 40

Which is the smallest?

Accepted Answer

atom

Question 41

We get energy from our bodies by our cells using food and oxygen in a process called

Accepted Answer

cellular respiration

Question 42

Chloroplasts undergo __________ and mitochondria undergo ___________.

Accepted Answer

photosynthesis, cellular respiration

Question 43

Which functional characteristic of proteins distinguishes them from carbohydrates?

Accepted Answer

ability to catalyze biochemical reactions

Question 44

Using a microscope, a student observes a small, green organelle in a plant cell. We call this a

Accepted Answer

chloroplast

Question 45

The energy used in active transport comes from

Accepted Answer

cellular respiration

Question 46

Amino acids are the building blocks of

Accepted Answer

proteins

Question 47

What is the main energy currency of the cell?

Accepted Answer

ATP

Question 48

Anaerobic respiration is different from aerobic respiration because it does not use

Accepted Answer

oxygen

Question 49

What is the function of a nucleic acid?

Accepted Answer

carries and passes genetic information

Question 50

What is the function of a carbohydrate?

Accepted Answer

store energy

Question 51

The intermolecular attraction between like molecules is called

Accepted Answer

cohesion

Question 52

Which characteristic is shared by ALL prokaryotes and eukaryotes?

Accepted Answer

ability to store hereditary information

Question 53

What are the building blocks (monomers) of nucleic acids?

Accepted Answer

nucleotides

Question 54

Which is an abiotic part of the following ecosystem?

Accepted Answer

water

Biology Keystone Module A

Questions 54

Biology Keystone Module A

Questions 54