Biology

Question 1

Of all the molecules that are significant to biology, which of the following are considered the most important

Answer 1

Carbohydrates, lipids, proteins, and nuclei can acids

Question 2

What is the primary purpose of the flagella on the surface of cells

Answer 2

Movement of the cell

Question 3

Which of the following is a benefit of the intermolecular hydrogen bonding of water

Answer 3

High specific heat
Cohesive and adhesive properties
A versatile solvent

Question 4

How do phospholipids function in cells

Answer 4

Components of the plasma membrane

Question 5

A cell from heart muscle would more than likely contain an unusually high proportion of………

Answer 5

Mitochondria

Question 6

72 chromosomes undergo meiosis. How many will be in each gamete

Answer 6

36

Question 7

Which component of the cell contributes to the protection, communication, and passage of substances into and out of the cell

Answer 7

Cell membrane

Question 8

Lipids are better known as fats, but what are they specifically

Answer 8

Fatty acids
Phospholipids
Steroids

Question 9

A cell division occurs in a human. The resulting cells contains 23 chromosomes. This is a description of gametes formed by which process

Answer 9

Meiosis

Question 10

Why is polarity the most important characteristic of water

Answer 10

Hydrogen bonding
High specific heat value
Versatile solvent properties

Question 11

Which of the following show how information is transformed to make a protein

Answer 11

DNA-RNA-Protein

Question 12

Which step in cellular respiration yields the greatest amount of ATP

Answer 12

Electron transport chain

Question 13

In a cell, reactions take place in a series of steps called

Answer 13

Metabolic pathways

Question 14

Which of the following describes how a bacterium reproduces

Answer 14

Binary fission

Question 15

Which organelle would you expect to be present in a cell responsible for detoxifying multiple molecules

Answer 15

Smooth endoplasmic reticulum

Question 16

Which type of cell contains no defined nucleus

Answer 16

Prokaryotic cell

Question 17

What is the probability that a recessive trait would be expressed in offspring if two parents who are both heterozygous for the desired trait were crossed

Answer 17

25%

Question 18

What is the function of water in photosynthesis

Answer 18

Supply electrons in the light reactions

Question 19

Which of the biological molecules are components of the molecules of inheritance

Answer 19

Nuclei can acids

Question 20

Which of the following proteins catalyze different reactions or processes

Answer 20

Enzyme

Question 21

What is the sum of all chemical reactions that occur in an organism

Answer 21

Metabolism

Question 22

In the heirchic system of classification which of the following is the least inclusive

Answer 22

Species

Question 23

Proteins are polymers of which of the following

Answer 23

Amino acids

Question 24

Which of the biological molecules are considered the most significant contributor to cellular function

Answer 24

Proteins

Question 25

What is the fundamental unit of biology

Answer 25

Cells

Question 26

Why is it important for cells to undergo mitosis

Answer 26

Growth and repair of body tissue

Question 27

Which RNA base is inserted complementary to the DNA base thymine (T)

Answer 27

Adenine (A)

Question 28

What are the two categories of fatty acids

Answer 28

Saturated and unsaturated fats

Question 29

When plants do not receive enough water their photosynthetic rated drops. This is because.....

Answer 29

Water is a raw material for the light reactions in photosynthesis

Question 30

After observing an event, you develop an explanation. Statement is referred to as which of the following

Answer 30

Hypothesis

Question 31

Of all the molecules that are significant to biology, which of the following are considered the most important

Answer 31

Carbohydrates, lipids, protein, and nuclei can acids

Question 32

Because genetics is the study of heredity, many human disorders can be determined by studying a persons chromosomes or by creating which of the following

Answer 32

Pedigree

Question 33

Which of the following are the distinct organelles that produce cell energy

Answer 33

Mitochondria not and chloroplasts

Question 34

Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants........

Answer 34

In plants: a cell plate is formed during telophase In animals: a cleavage furrow is formed at telophase

Question 35

What are the two catabolic pathways that lead to cellular energy production

Answer 35

Fermentation and cellular respiration

Question 36

During protein synthesis, what process uses an RNA strand to produce a complementary strand of DNA

Answer 36

Transcription

Question 37

Which of the following statements is true about the Krebs cycle and the Calvin cycle

Answer 37

Both result in ATP and NADH

Question 38

Which cell organelle functions to transport materials from the endoplasmic reticulum throughout the cell

Answer 38

Golgi apparatus

Question 39

During which phase of cell reproduction does the cell. Divide forming two separate identical cells

Answer 39

Cytokinesis

Question 40

During cell respiration, the conversion of glucose results in an overall production of how many ATP molecules

Answer 40

32-36

Question 41

Athletes are often concerned with the question of what they need in their diets to increase muscle mass and strength. What biological molecule would you recommend that would accomplish this?

Answer 41

Proteins

Question 42

A molecule of water is bonded with another molecule of water by which type of bond

Answer 42

Hydrogen

Question 43

If you wanted to determine the probability of a genotype, which of the following would you use

Answer 43

Punnett square

Question 44

The cell membrane consists of a bi layer of phospholipids with proteins, cholesterol, and glycoproteins. This belayer creates a hydrophobic region between two layers of lipids, making it which of the following

Answer 44

Selectively permeable

Question 45

What is the first step in the conversion of glucose to pyruvate

Answer 45

Glycolysis

Question 46

At which phase of meiosis does crossing over occur

Answer 46

Prophase I

Question 47

How does meiosis differ from mitosis

Answer 47

Meiosis: each of the daughter cells contains half as many chromosomes as the parent

Question 48

Cells reproduce by different processes all of which fall into what two categories

Answer 48

Sexual reproduction and asexual reproduction

Question 49

Heirchic classification

Answer 49

``` Kingdom Phylum Class Order Family Genus Species ```