Biology

Question 1

What is the function of ethylene plant hormone?

Answer 1

Promote ripening of fruit

Question 2

What is the function of Auxins plant hormone?

Answer 2

Loosen cellulose fibers, increase cell wall plasticity, promote cell growth

Question 3

What is the function of cytokinins plant hormone?

Answer 3

Regulate cell differentiation and division

Question 4

What is the function of Gibberellins plant hormone?

Answer 4

Affect stem/shoot elongation and leaf/fruit death. Ends dormancy. Promotes flowering and production of fruit

Question 5

What is the function of Abscisic acid plant hormone?

Answer 5

Promotes dormant seeds, close stoma, inhibit growth.

Question 6

In what direction does the atomic radius increase?

Answer 6

To the left and down on the periodic table.

Question 7

In which disorder are T3 and T4 undersecreted? Hyperthyroidism or hypothyroidism?

Answer 7

Hypothyroidism

Question 8

How does aerial natriuretic peptide affect sodium reabsorption and excretion, respectively?
A. Increase; increase
B. Increase; decrease
C. Decrease; decrease
D. Decrease; increase

Answer 8

D. Decrease; increase

Question 9

How many kcal/gram can the body obtain from carbohydrates?
A. 2
B. 4
C. 6
D. 9

Answer 9

B. 4

Question 10

Role of G cell

Answer 10

Stimulates parietal & cherif cells by releasing gastrin hormones.

Question 11

What is the role of parietal cells?

Answer 11

Secretes gastric juices (HCl) for digestion

Question 12

What is the role of chief cells

Answer 12

Secretes gastric lipase & pepsinogen

Question 13

What is the role of mucous cells?

Answer 13

Secretes protective mucus

Question 14

Medulla oblongata responsible for what?

Answer 14

Respiration

Question 15

Cerebral cortex responsible for what?

Answer 15

Higher order processing

Question 16

Cerebellum is responsible for what?

Answer 16

Coordination & movement

Question 17

Hypothalamus is responsible for what?

Answer 17

Regulate hormones

Question 18

What enzyme acts in the 1st step of glycolysis?

Answer 18

Hexokinase

Question 19

What does trypsin do?

Answer 19

Digestive enzyme that breaks down proteins into amino acids.

Question 20

What enzyme is released by the pancreas during digestion?

Answer 20

Trypsin to break down proteins into amino acids

Question 21

What enzyme helps break down carbohydrates into simple sugars?

Answer 21

Amylase

Question 22

What enzyme is released by your pancreas that produces saliva that breaks down starch into maltose and glucose.

Answer 22

Amylase

Question 23

What enzyme aids in the digestion of lactose?

Answer 23

Lactase

Question 24

What is the main force that drives the filtration in the bowman’s capsule?
A. Osmotic pressure
B. Pressure produced from lack of proteins in the filtration
C.the pressure produced by the blood inside the glomerulus
D. Oncotic pressure from the blood

Answer 24

C.the pressure produced by the blood inside the glomerulus

Question 25

Which of the following features of mitochondria and chloroplasts best supports endosymbiotic theory?
A. Both produce through mitosis
B. Both have a single membrane
C.both produce glucose
D. Both have circular DNA
E. Both wrap their DNA around histone proteins

Answer 25

D. Both have circular DNA

Question 26

What are the 4 similar features between mitochondria and chloroplasts?

Answer 26

1. circular DNA
2. Unique ribosomes
3. Reproduce by binary fusion
4. Double lipid bilayer

Question 27

Which of the following is a function of the lymphatic system?
A. Transport fat towards the digestive system
B. Return fluids that escaped cells and tissues back to blood vessels.
C.provide oxygen to tissues
D. Regulate body temperature
E. Synthesis of compliment proteins

Answer 27

B. Return fluids that escaped cells and tissues back to blood vessels.

Question 28

What are the 4 colligative properties

Answer 28

1. Vapor pressure
2. Osmotic pressure
3. Freezing point
4. Boiling point