Reproduction
This test is based on certain topics from biology and it will help the students to revise the subject completely.
Questions
Structure found within the cerebellum includes ____________.
- granule cells
- amygdaloid body
- caudate nucleus
- corpus callosum
- hippocampus
When a person is resting and feels relaxed, which among the following systems is responsible for the constriction of the pupil and the slowing of the heart beats?
- Peripheral nervous system
- Central nervous system
- Sympathetic nervous system
- Parasympathetic nervous system
- Visceral sensation system
Where do precursor T-lymphocytes flourish into fully competent but not yet activated T-cells?
- The spleen
- The lymph nodes
- The thymus gland
- The bone marrow
- The medullary cavity
Wernicke's area is associated with ___________.
- speech comprehension
- balance of the body
- reflexes
- production of speech
- perception of stimuli
Which among the following proteins is a protease of the blood clotting pathway in humans?
- Fibrin
- Prothrombin
- Factor XII
- Plasminogen
- Zymogen
Nephron is a structural and functional unit of kidney. Which of the following statements characterises the excretion of acid by the mammalian nephron?
- Acid can be excreted as NH4+ ions.
- Acid excretion mainly occurs in the early nephron.
- In the distal nephron, secreted hydrogen ions mainly contribute to bicarbonate reabsorption.
- Sodium phosphate is an urinary base.
- Human urine is usually alkaline in nature.
Which of the following components can dissolve a blood clot formed in mammals?
- Tissue plasminogen activator
- Antithrombin
- Plasmin
- Thrombin
- Prothrombinase
Which among the following can be excluded from the functions of cerebellum?
- Maintenance of balance and posture
- Coordination of voluntary movements
- Motor learning
- Cognitive functions
- Maintenance of normal heart beat rate
After a fire accident, an individual lost his power to feel pain and pay attention. The part of the brain that must have been affected is _________.
- hypothalamus
- motor cortex
- sensory cortex
- amygdala
- thalamus
In mammals, the entry of ions in the neural cell is governed by ___________.
- dendrites
- channels
- myelin sheaths
- meninges
- axon hillock
Which of the following statements characterises the sexual reproduction in humans?
- A mature human sperm contains a complete set of chromosomes.
- Primary spermatocytes divide by mitosis to give rise to spermatids.
- At parturition an ovary contains all the oocytes it will ever have.
- The sperms are known as male zygotes.
- In mammals, fertilization occurs in the uterus of a female.
Which of the following statements is true regarding the sexual reflexes and fertilization in humans?
- Erection in males is a sympathetic reflex.
- During ejaculation, the sperms are mixed with secretions from the prostate and seminal vesicles.
- In females, the fertilization occurs in the uterus.
- Fertilization may occur two or more days after ovulation.
- The ejaculatory duct passes through the vas deferens in males.
Which among the following is/are not secreted by sertoli cells?
- Anti-Müllerian Hormone (AMH)
- Alpha-Fetal Protein
- Inhibin and activins
- Androgen binding protein
- Ets related molecule
Which among the following characterises the events taking place in the testis?
- Sertoli cells line the seminiferous tubules and boost the developing sperm in males.
- Sertoli cells reciprocate, to testosterone by synthesising androgen binding protein.
- Sertoli cells allow the unrestrained diffusion of water-soluble substances between the seminiferous tubules and the blood.
- Leydig cells secrete testosterone.
- Sertoli cells also known as mother cells prevent, the residual cytoplasm during spermatogenesis.
Pick the CORRECT statement regarding the major dietary constituents.
- The human body cannot store glucose.
- All essential amino acids are found in meat.
- Plant oils are rich in unsaturated fats.
- Normally ketones are found in the urine of a person eating a carbohydrate rich diet.
- The urine of a non vegetarian is alkaline in nature.