Lecture Test 1

Question 1

Which of the following is the single most important stimulus for epiphyseal plate activity during infancy and childhood?

Answer 1

Growth Hormone

Question 2

Changes in the color of skin are often an indication of a homeostatic imbalance. Which of the following changes would suggest that a patient is suffering from Addison’s Disease?

Answer 2

The skin takes on a bronze or metallic appearance

Question 3

Which of the following statements is false?

Answer 3

When the hydrogen ion concentration decreases, the hydroxyl ion concentration also decreases.

All true
When acids and bases are mixed, they react with each other to form water and a salt.

The more hydrogen ions in a solution, the more acidic the solution.

The pH of blood is slightly basic.

Question 4

Mitochondria

Answer 4

contain some of the DNA and RNA code necessary for their own function

Question 5

What level of protein synthesis is represented by the coiling of the protein chain backbone into an alpha helix?

Answer 5

Secondary structure

Question 6

What causes osteoporosis?

Answer 6

Osteoclasts outpace osteoblasts due to low hormone production of the ovaries

Question 7

epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.

Answer 7

Pseudostratified columnar

Question 8

In some cases the epiphyseal plate of the long bones of children closes too early. What might be the
cause?

Answer 8

elevated levels of sex hormones

Question 9

Acne is a disorder associated with

Answer 9

Sebaceous glands

Question 10

Crenation (shrinking) is likely to occur in blood cells immersed in

Answer 10

Hypertonic solution

Question 11

Select the correct statement regarding adipose tissue

Answer 11

It’s primary function is nutrient storage

Question 12

What does the formula C6H12O6 mean

Answer 12

There are 6 carbon, 12 hydrogen,6 oxygen atoms

Question 13

In the epihyseal plate, cartilage grows

Answer 13

By pushing the epiphysis away from the diaphysis

Question 14

What part is responsible for shock absorption and located in the hypodermics

Answer 14

Question 15

The main component of they cytoskeleton is

Answer 15

Salts

Question 16

Which of the following is not true of proteins

Answer 16

They appear to be the molecular carriers of coded hereditary information

All true
They may be denature or coagulated by heat of acidity
They have both functional and structural roles in the body
Their function depends on their 3D shape

Question 17

Label the simple squamaous epithelium

Answer 17

Question 18

Which of the following statements is correct regarding net diffusion

Answer 18

The greater the concentration gradient, the faster the rate

Question 19

The reason the hypodermics acts as a shock absorber is that

Answer 19

The major part of its makeup is adipose, which serves as an effective shock absorber

Question 20

The shape of the external ear is maintained by

Answer 20

Elastic cartilage

Question 21

The epidermis consists of 5 layers of cells, each layer with a distinct role to play in the health, wellbeing, and functioning of the skin. Which of the following layers is responsible for cell division and replacement

Answer 21

Stratum basale

Question 22

Pseudostratisfied columnar epithelium ciliated variety

Answer 22

Lines most of the respiratory tract

Question 23

Normal bone formation and growth are dependent on the adequate intake of

Answer 23

Calcium, phosphate and vitamin D

Question 24

The process of bones increasing in width is known as

Answer 24

Appositional growth

Question 25

Which of the following would be regarded as an organic molecule

Answer 25

CH4

Question 26

In general, the lipids that we refer to as oils have

Answer 26

A high degree of unsaturated bonds

Question 27

Which glands produce ear wax

Answer 27

Ceruminous glands

Question 28

The fiber type that gives connective tissue great tensile strength is

Answer 28

Collagen

Question 29

The red blood cell placed in pure water would

Answer 29

Swell and burst

Question 30

Which of the following would not be the constituent of a plasma membrane

Answer 30

Messenger RNA

Question 31

Osteogenesis is the process of

Answer 31

Bone formation

Question 32

Which hormone increases osteoclast activity to release more calcium ions into the bloodstream

Answer 32

Parathyroid hormone

Question 33

Label the peripheral protein

Answer 33

Question 34

Match thymine

Answer 34

Question 35

Which vesicular transport process occurs primarily in some white blood cells and macrophages

Answer 35

Pinocytosis (shrinking)

Question 36

Locate the epiphyseal line

Answer 36