Which of the following is not likely to be found in the cell of a ripe tomato fruit?
C. Cellulose cell wall
E. Mineral salts
Which of the following constitutes the main internal tissue of a leaf?
C. Vascular tissue
D. Lower epidermis
E. Upper epidermis
Four cells with osmotic potential equivalent to that of 3% salt solution were immersed respectively in solutions of different concentrations labeled as follows: I = 4% salt solution; II = 6% salt solution III = 1% salt solution; IV = 10% salt solution; V = 5% salt solution. Which of the solutions will cause an increase in osmotic pressure within the cell?
Which of the following statements is not true of osmotic process?
A. There must be a selectively permeable membrane
B. The two solutions must be of different concentrations initially
C. It involves only the movement of water molecules
D. Equilibrium is reached when there is equal distribution of water molecules
Which of the following is the correct route for the movement of materials through the kidney?
A. Glomerulus → Bowman’s capsule → Loop of Henle → Collecting tubule → Pelvis
B. Glomerulus → Loop of Henle → Collecting tubule → Bowman’s capsule → Pelvis
C. Pelvis → Bowman’s capsule → Glomerulus →Loop of Henle → Collecting tubule
D. Bowman’s capsule → Glomerulus → Loop of Henle → Collecting tubule → Pelvis
E. Bowman’s capsule → Loop of Henle →Glomerulus → Collecting tubule → Pelvis
Which of the following is the function of the hormone in the lslets of Langerhans?
A. is used in protein metabolism
B. is involved in sugar synthesis
C. aids the rate at which glucose is converted to glycogen
D. controls the fluid content of the body
E. plays a role in the pH balance of the body fluid
Blood in mammals transports oxygen because it contains the pigment called