10th Class Biology 2nd Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. What triggers the release of luteinizing hormone (LH) in females?
   1. Low levels of estrogen
   2. High levels of estrogen
   3. Ovulation
   4. Menstruation
2. Blood from the kidneys returns to the inferior vena cava via:
   1. Renal arteries
   2. Ureters
   3. Renal veins
   4. Capillaries
3. Which hormone increases calcium levels in blood?
   1. Parathormone
   2. Calcitonin
   3. Thyroxine
   4. Insulin
4. The outer part of each ovary is surrounded by:
   1. Follicles
   2. Germ cells
   3. Polar bodies
   4. Zygotes
5. The process in which substances are actively transported from blood capillaries into the nephron tubule is called:
   1. Filtration
   2. Tubular secretion
   3. Osmosis
   4. Diffusion
6. Which nervous system controls involuntary actions?
   1. Somatic
   2. Autonomic
   3. Sympathetic
   4. Parasympathetic
7. Spermatids develop into spermatozoa through a process called:
   1. Oogenesis
   2. Spermiogenesis
   3. Fertilization
   4. Ovulation
8. The process of movement of small molecules across the glomerular wall due to blood pressure is:
   1. Selective reabsorption
   2. Tubular secretion
   3. Glomerular filtration
   4. Osmosis
9. Growth hormone deficiency in childhood causes:
   1. Gigantism
   2. Pituitary dwarfism
   3. Acromegaly
   4. Diabetes mellitus
10. Which organ releases GnRH?
    1. Pituitary gland
    2. Testes
    3. Hypothalamus
    4. Ovary
11. The urinary bladder has only one exit called:
    1. Ureter
    2. Nephron
    3. Urethra
    4. muscular bag
12. Which neurotransmitter is involved in muscle contraction and hormone release?
    1. Epinephrine
    2. Glycine
    3. Serotonin
    4. All of these