1st Semester Exam

Question 1

Proteins consist of carbon, hydrogen, oxygen, nitrogen and often _______

Answer 1

Sulphur

Question 2

the animal tissue that supports and protects other tissues and allows movement

Answer 2

Skeletal

Question 3

a chemical component of cells

Answer 3

Salts

Question 4

oils and fats

Answer 4

Lipids

Question 5

a plant tissue that protects the soft tissues of plants

Answer 5

Epidermis

Question 6

water ‘climbs’ trees due to these properties

Answer 6

Cohesion and adhesion

Question 7

phosphate heads are ____________

Answer 7

Hydrophilic

Question 8

the organelle that provides energy for the cell’s activities

Answer 8

Mitochondrion

Question 9

many substances dissolve in water

Answer 9

Universal solvent

Question 10

the larger appearance of an object using a microscope and other optical instrument

Answer 10

Magnification

Question 11

cells that do not have membrane-bound organelles

Answer 11

Prokaryotes

Question 12

membrane component involved with cell recognition

Answer 12

Glycoprotein

Question 13

membrane proteins are integral or _______

Answer 13

peripheral

Question 14

membrane component that regulates the fluidity of phospholipids

Answer 14

Cholesterol

Question 15

a thin layer of tissue that covers external surfaces in complex animals

Answer 15

Epithelial

Question 16

the plant tissue where photosynthesis is carried out

Answer 16

Mesophyll

Question 17

the organelle that is more common and larger in plants

Answer 17

Vacuole

Question 18

combination of characteristics common to all living things, absent from non-living things

Answer 18

Life

Question 19

lipids are made up of one ________ and three fatty acids

Answer 19

Glycerol

Question 20

a polysaccharide found in plant cell walls

Answer 20

Cellulose

Question 21

the scientific study of life and of the activities of all living things

Answer 21

Biology

Question 22

above 50 degrees Celsius, proteins become ________

Answer 22

Denatured

Question 23

tissues combine to form an _______

Answer 23

organ

Question 24

a property of water important for cytoplasm

Answer 24

High heat capacity

Question 25

He is known for the scientific method and the authoritative nature of science

Answer 25

Bacon

Question 26

keeping conditions inside the organism within tolerable limits

Answer 26

Homeostasis

Question 27

perceiving and responding to changes in the environment

Answer 27

Responsiveness

Question 28

He carried out the systematic study of animals, diagrams of anatomy

Answer 28

Aristotle

Question 29

Proteins are made up of an amino acid group, and r group and a ______ group

Answer 29

carboxyl

Question 30

The organelle that produces protein

Answer 30

Ribosome

Question 31

the monomer of carbohydrates

Answer 31

Glucose

Question 32

Proteins become ________ when their disulfide bonds break down

Answer 32

denatured

Question 33

A functional protein that speeds up chemical reactions

Answer 33

Enzyme

Question 34

Enzymes speed up reactions, they are \_\_\_\_\_\_\_\_

Answer 34

catalysts

Question 35

give proteins their 3D shape

Answer 35

cross-linkages

Question 36

a 'breaking down' reaction using enzymes

Answer 36

Catabolic reaction

Question 37

the place where the substrates bind to an enzyme is the \_\_\_\_\_\_\_\_\_\_\_\_\_

Answer 37

active site

Question 38

a carbohydrate with 2 rings

Answer 38

Disaccharide

Question 39

glucose is represented as a \_\_\_\_\_\_

Answer 39

ring

Question 40

a hormone that helps us to break down glucose

Answer 40

insulin

Question 41

is made up of caarbon, hydrogen, oxygen, nitrogen, and often sulphur

Answer 41

Protein

Question 42

the polysaccharide stored in plants

Answer 42

Starch

Question 43

the polysaccharide stored in animals

Answer 43

Glycogen

Question 44

the monomer of lipids

Answer 44

Fatty acid

Question 45

a carrier protein

Answer 45

Hemoglobin

Question 46

Proteins are divided into 2 groups: _________ and Functional

Answer 46

Structural

Question 47

Biological catalysts

Answer 47

Enzymes

Question 48

the accepted theory about how enzymes work

Answer 48

Lock and Key Model

Question 49

a 'building up' reaction using enzymes

Answer 49

Anabolic reaction

Question 50

\_\_\_\_\_\_\_\_\_\_ are very varied, important in chemical reactions and needed in very small quantities

Answer 50

Vitamins

Question 51

are made up carbon, oxygen and hydrogen

Answer 51

Carbohydrates

Question 52

a polysaccharide common in plant cells

Answer 52

Cellulose

Question 53

Salts are present in cells as \_\_\_\_\_\_\_

Answer 53

ions

Question 54

Calcium, potassium, and sodium ions from salts are important for \_\_\_\_\_\_\_\_\_\_\_\_

Answer 54

nerve impulses

Question 55

the monomer of proteins

Answer 55

Amino acid

Question 56

the bond between amino acids to form a peptide

Answer 56

Peptide Bond

Question 57

Phosphate ions from salts are important for

Answer 57

energy transfer

Question 58

the father of biology

Answer 58

Aristotle

Question 59

removing wate products produced by cell activities

Answer 59

Excretion

Question 60

producing offspring either sexually or asexually

Answer 60

Reproduction

Question 61

pH of water

Answer 61

Neutral

Question 62

the most abundant compound of living cells

Answer 62

Water

Question 63

0 degrees Celsius

Answer 63

Freezing point

Question 64

cells are composed of

Answer 64

chemical substances

Question 65

living things

Answer 65

organisms

Question 66

perceiving and responding to changes in the environment

Answer 66

Responsiveness

Question 67

Water molecules stick to each other

Answer 67

Cohesion

Question 68

100 degrees Celsius

Answer 68

Boiling point

Question 69

established the authoritative nature of science

Answer 69

Francis Bacon

Question 70

water molecules are held together by \_\_\_\_\_\_\_\_\_\_\_\_\_

Answer 70

Covalent bonds