Exam questions

Question 1

Which of the following allows implantation of the blastocyst

Answer 1

Hatching

Question 2

Describe what is Cardiac muscle tissue?

Answer 2

Branched and has intercalated disks

Question 3

The interaction between RANK and RANKL activates the differentiation of which cell and promotes what outcome?

Answer 3

Osteoclasts, bone resorption

Question 4

Which of the following is true concerning human skeletal muscle

Answer 4

Triads

Question 5

An entire skeletal muscle is invested by a connective tissue element known as?

Answer 5

Epimysium

Question 6

The urinary bladder needs to distend and then return to its original shape. Which of the following epithelia is associated with that organ?

Answer 6

Transitional

Question 7

Which type of Glial cell makes myelin in the PNS

Answer 7

Schwann cell

Question 8

Which of the following is best described as apocrine gland?

Answer 8

Mammary gland

Question 9

Which of the following occurs during embryogenesis week 2

Answer 9

Formation of bilaminar disc (epiblast and hypoblast)

Question 10

Which cell in fibrous connective tissue is primarily responsible for making extracellular matrix?

Answer 10

Fibroblasts

Question 11

On the distal ends of the epiphysis is lined by articular cartilage, what type of cartilage is this classified as?

Answer 11

Hyaline cartilage

Question 12

Which part of a neuron typically collects the most information from other neurons?

Answer 12

Dendrite

Question 13

Influx of ——– into the sarcoplasm promotes muscle contraction

Answer 13

Ca2+

Question 14

In a healthy patient, the most populous leukocytes are?

Answer 14

Neutrophils

Question 15

Cells placed in an isotonic solution will

Answer 15

Remain the same size

Question 16

Enzymes work by

Answer 16

Decreasing the activation energy

Question 17

Which of the following base pairing events results in the formation of the strongest bond?

Answer 17

Cytosine bound to Guanine

Question 18

Are lipids hydrophobic and phosphates

Answer 18

Yes

Question 19

Which organelle is essential for cells to be able to replicate

Answer 19

Nucleus

Question 20

Homeostasis can be described as?

Answer 20

The maintenance of relatively stable internal environment

Question 21

True or false? In Na+/ Glucose transport, Na+ moves into the cell along its concentration gradient and glucose moves into the cell against its concentration gradient

Answer 21

Correct

Question 22

The protein coding region of gene begins with

Answer 22

The first AUG or start codon encountered by the ribosome

Question 23

In cell death involving pyknosis, chromatin condensation and fragmentation as well as engulfment by resident phagocytes

Answer 23

Apoptosis

Question 24

How many chromosomes are found in a healthy human occyte

Answer 24

23

Question 25

For fatty acid synthesis to occur

Answer 25

Pyruvate dehydrogenase must be inactivated

Question 26

The demand for nucleotide biosynthesis is high during which stage of the cell cycle?

Answer 26

S-phase

Question 27

Which enzyme is responsible for the synthesis of mRNA during transcripition?

Answer 27

RNA polymerase

Question 28

Proteins are made up of

Answer 28

Amino acids

Question 29

In an allergic reaction response to pollen which proinflammatory medicators are released?

Answer 29

Basophils and mast cells

Question 30

What is the primary function of Gap junctions in epithelial tissue

Answer 30

allowing direct communication between adjacent cells

Question 31

Do all muscle types use actin and myosin for contraction

Answer 31

Yes

Question 32

Which of the following represent a difference in the matrix of bone and cartilage

Answer 32

The matrix of bone is penetated by blood vessles and the of cartilage is not

Question 33

Which cell type is derived from lymphoid stem cells?

Answer 33

B cells

Question 34

Which cell is most abundant in blood

Answer 34

Erythrocytes

Question 35

What will happen to a RBC into a hypertonic solution

Answer 35

Crenate (shrink)

Question 36

If 2 molecules of glucose underwent glycolysis anaerobic environment, how many molecules of pryuvate woulf then be converted to acetyl coA and enter the Krebs/ TCA cycle

Answer 36

0 Due to the anaerobic conditions, no pyruvate will enter the TCA cycle