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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 7951. |
In female mammals Bartholin's glands open into the [AFMC 1986] |
| A. | Vestibule and release a lubricating fluid in the vagina |
| B. | Uterus and release a lubricating fluid during the birth of young ones |
| C. | Urinary bladder and assist in release of urine |
| D. | Fallopian tubes and release a secretion which makes sperms motile |
| Answer» B. Uterus and release a lubricating fluid during the birth of young ones | |
| 7952. |
Ovulation does not occur during pregnancy in the human female because |
| A. | The follicles are not influenced by the level of progesterone in the blood |
| B. | The corpus luteum and later the placenta produce large amounts of progesterone |
| C. | The corpus luteum generates as luteinising hormone is no longer produced |
| D. | The embryo produces hormones which retard the production of maternal follicle stimulating hormones |
| Answer» C. The corpus luteum generates as luteinising hormone is no longer produced | |
| 7953. |
The structure formed after release of ova from graafian follicles and secretory in nature, is [CPMT 1983; CBSE PMT 1999] |
| A. | Corpus callosum |
| B. | Corpus luteum |
| C. | Corpus albicans |
| D. | Corpus stratum |
| Answer» C. Corpus albicans | |
| 7954. |
Corpus luteum is formed in [MP PMT 1994, 96, 98; RPMT 2002] |
| A. | Ovary |
| B. | Testes |
| C. | Brain |
| D. | Kidney |
| Answer» B. Testes | |
| 7955. |
In ladies, the oviducts are cutted or removed surgically to avoid the chances of fertilization. This is called [DPMT 1993] |
| A. | Vasectomy |
| B. | Ovariodectomy |
| C. | Sterilization |
| D. | Tubectomy (Salpingectomy) |
| Answer» E. | |
| 7956. |
The female rabbit is [CPMT 1980, 89] |
| A. | Spontaneous ovulator |
| B. | Seasonal ovulator |
| C. | Natural ovulator |
| D. | Induced ovulatory |
| Answer» E. | |
| 7957. |
Corpus luteum in mammals is present in [MP PMT 1993] |
| A. | Heart and initiates atrial contraction |
| B. | Brain and connects the two cerebral hemispheres |
| C. | Ovaries and produces progesterone |
| D. | Skin and acts as a pain receptor |
| Answer» D. Skin and acts as a pain receptor | |
| 7958. |
Stroma is a term applied to [MP PMT 1993] |
| A. | Gall stone |
| B. | Ovarian follicles |
| C. | Connective tissue in which graffian follicles are embedded |
| D. | Connective tissue surrounding the seminiferous tubules |
| Answer» D. Connective tissue surrounding the seminiferous tubules | |
| 7959. |
The nutritive medium for the ejaculated sperms is given by [CPMT 1992] |
| A. | Seminal fluid |
| B. | Vaginal fluid |
| C. | Uterine lining |
| D. | Fallopian tube |
| Answer» B. Vaginal fluid | |
| 7960. |
In the ovum of rabbit, graafian follicle is [MP PMT 1992] |
| A. | Oogonial cells |
| B. | Corpus luteum |
| C. | Corpus albicans |
| D. | Theca externa, theca interna, oocyte and follicle cells |
| Answer» E. | |
| 7961. |
Which one of the following statement is correct [MP PMT 1992] |
| A. | Albumen covering eggs of frog swells and forms protective jelly after coming in contact with water |
| B. | Fertilization in rabbit is helped by hyaluronidase which is present in eggs |
| C. | During fertilization in rabbit the entire sperm including tail enters egg |
| D. | In case of toad, fertilization takes place in moist soil |
| Answer» B. Fertilization in rabbit is helped by hyaluronidase which is present in eggs | |
| 7962. |
Ovulation in mammals is caused by [AIIMS 1990; Wardha 2005] |
| A. | FSH and TSH |
| B. | FSH and LH |
| C. | FSH and LTH |
| D. | LTH and LH |
| Answer» C. FSH and LTH | |
| 7963. |
Graafian follicles are produced by the ovary by the process of |
| A. | Oogenesis |
| B. | Folliculargenesis |
| C. | Ovulation |
| D. | Oogenolysis |
| Answer» C. Ovulation | |
| 7964. |
In mammals the ovary is primarily concerned with |
| A. | Production of hormone |
| B. | Production of ovum |
| C. | Development of secondary sexual characters |
| D. | All of the above |
| Answer» C. Development of secondary sexual characters | |
| 7965. |
Bartholin's glands in rabbit are found in [MP PMT 1992] |
| A. | Male and produce a viscous alkaline fluid which neutralizes acidity in the urethra |
| B. | Male and produce the clear liquid part of the spermatic fluid |
| C. | Female and produce the hormone estrogen which regulates secondary sexual characters |
| D. | Female and produce a clear fluid which lubricates the vestibule during copulation |
| Answer» E. | |
| 7966. |
After ovulation the graafian follicle becomes an endocrine organ called [CPMT 1989] |
| A. | Interstitial organ |
| B. | Ovarian tube |
| C. | Globulin |
| D. | Fibrin |
| Answer» B. Ovarian tube | |
| 7967. |
Corpus luteum is the source of secretion of [AIIMS 1992; CBSE PMT 1995; RPMT 1999; MP PMT 2003; Orissa JEE 2004] |
| A. | Estrogen |
| B. | Progesterone |
| C. | Estradiole |
| D. | LH |
| Answer» C. Estradiole | |
| 7968. |
The membrane investing the ovum just outside the membrana granulosa is [CPMT 1989] |
| A. | Zona pellucida |
| B. | Theca interna |
| C. | Vitelline membrane |
| D. | Discus proligerous |
| Answer» C. Vitelline membrane | |
| 7969. |
Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to: (AIIMS 2003) |
| A. | kidney stones |
| B. | vitamin toxicity |
| C. | hypercholesterolemia |
| D. | urine laden with ketone bodies |
| Answer» D. urine laden with ketone bodies | |
| 7970. |
Obesity can be controlled by reducing intake of: |
| A. | proteins |
| B. | minerals |
| C. | vitamins |
| D. | fats and carbohydrates |
| Answer» E. | |
| 7971. |
During prolonged starvation, body derives energy from: |
| A. | spleen |
| B. | lungs |
| C. | liver and lungs |
| D. | subcutaneous fat |
| Answer» E. | |
| 7972. |
Fats are richly found in: |
| A. | liver cells |
| B. | areolar tissue |
| C. | adipose tissue |
| D. | lymph glands |
| Answer» D. lymph glands | |
| 7973. |
Which of the following gives maximum energy in the body of man by combustion? |
| A. | Fat |
| B. | Protein |
| C. | Nucleic acid |
| D. | Carbohydrate |
| Answer» B. Protein | |
| 7974. |
The molecule used by most animals for long term energy storage is: |
| A. | fat |
| B. | starch |
| C. | glycogen |
| D. | cholesterol |
| Answer» B. starch | |
| 7975. |
Which of the following yields twice as many calories per gram as carbohydrate? |
| A. | Fat |
| B. | Proteins |
| C. | Minerals |
| D. | Vitamins |
| Answer» B. Proteins | |
| 7976. |
Which one of the following is not a limiting factor for photosynthesis [CPMT 1984, 88; KCET 1999] |
| A. | Oxygen |
| B. | Carbon dioxide |
| C. | Chlorophyll |
| D. | Light |
| Answer» B. Carbon dioxide | |
| 7977. |
Compensation point is [MP PMT 1990; CPMT 1998, 99; AFMC 2002] |
| A. | Where there is neither photosynthesis nor respiration |
| B. | When rate of photosynthesis is equal to the rate of respiration |
| C. | When entire food synthesized into photosynthesis remain utilized |
| D. | When there is enough water just to meet the requirements of plant |
| Answer» C. When entire food synthesized into photosynthesis remain utilized | |
| 7978. |
When\[NaHC{{O}_{3}}\]is added in small quantity in an experiment showing photosynthesis, what will be the effect on it |
| A. | Rate will be lowered |
| B. | Rate will be increased |
| C. | Rate will be normal |
| D. | Process will stop |
| Answer» C. Rate will be normal | |
| 7979. |
What is called Warburg's effect on photosynthesis [MP PMT 2003] |
| A. | Low rate of the process due to \[{{O}_{2}}\]supply |
| B. | Low rate of the process due to\[C{{O}_{2}}\]supply |
| C. | Both [a] and [b] |
| D. | None of the above |
| Answer» B. Low rate of the process due to\[C{{O}_{2}}\]supply | |
| 7980. |
The algae found in high temperature ponds are capable of doing photosynthesis upto |
| A. | \[{{30}^{o}}C\] |
| B. | \[{{75}^{o}}C\] |
| C. | \[{{90}^{o}}C\] |
| D. | \[{{100}^{o}}C\] |
| Answer» C. \[{{90}^{o}}C\] | |
| 7981. |
Chl. a absorb's max of [MP PMT 2005] |
| A. | Red light |
| B. | Blue light |
| C. | Green light |
| D. | Yellow light |
| Answer» B. Blue light | |
| 7982. |
Which factor not limiting in normal conditions for photosynthesis [MHCET 2003] |
| A. | Air |
| B. | \[C{{O}_{2}}\] |
| C. | Water |
| D. | Chlorophyll |
| Answer» E. | |
| 7983. |
Blackman?s law of limiting factor is applied to [RPMT 1999; AIIMS 2001] |
| A. | Growth |
| B. | Respiration |
| C. | Transpiration |
| D. | Photosynthesis |
| Answer» E. | |
| 7984. |
Rate of photosynthesis is independent of [CPMT 1984] |
| A. | Quality of light |
| B. | Intensity of light |
| C. | Duration of light |
| D. | Temperature |
| Answer» D. Temperature | |
| 7985. |
Main factor which limits the rate of photosynthesis on a clear day is |
| A. | Chlorophyll |
| B. | Light |
| C. | \[C{{O}_{2}}\] |
| D. | Water |
| Answer» D. Water | |
| 7986. |
Which of the following would happen if the supply of\[{{O}_{2}}\]is decreased to an illuminated wheat plant |
| A. | Its photosynthesis would decrease |
| B. | Its respiration would increase |
| C. | Its photosynthesis would increase |
| D. | All the physiological process would stop |
| Answer» D. All the physiological process would stop | |
| 7987. |
Photo-oxidation of chlorophyll is called |
| A. | Intensification |
| B. | Chlorosis |
| C. | Solarization |
| D. | Defoliation |
| Answer» D. Defoliation | |
| 7988. |
When a photosynthetic plant is transferred to an atmosphere of enriched\[{{O}_{2}}\], its rate of |
| A. | Photosynthesis would increase |
| B. | Photosynthesis would decrease |
| C. | Respiration would decrease |
| D. | Osmosis would increase |
| Answer» C. Respiration would decrease | |
| 7989. |
In nature the photosynthesis should proceed upto the limit of |
| A. | Light |
| B. | Temperature |
| C. | \[C{{O}_{2}}\] |
| D. | Moisture and wind |
| Answer» C. \[C{{O}_{2}}\] | |
| 7990. |
Q10 refers to [RPMT 1997] |
| A. | Quality quotient |
| B. | Temperature quotient |
| C. | Respiratory quotient |
| D. | Quantum constant |
| Answer» C. Respiratory quotient | |
| 7991. |
DCMU is an inhibitor of |
| A. | PS-I |
| B. | PS-II |
| C. | Calvin cycle |
| D. | Krebs cycle |
| Answer» C. Calvin cycle | |
| 7992. |
If the photosynthetic yield in blue wavelength is 10 units and that in red wavelength is 40 units; what should be the yield of photosynthesis in combination of two wavelengths, if the effect is synergistic |
| A. | 30 units |
| B. | 40 units |
| C. | 50 units |
| D. | 50 units |
| Answer» E. | |
| 7993. |
The decrease in yield of photosynthesis in the presence of red light becomes increased to normal when it is supplemented with blue light. This phenomenon is termed as |
| A. | Blackman's effect |
| B. | Emmerson's effect |
| C. | Englemann's effect |
| D. | Hill's effect |
| Answer» C. Englemann's effect | |
| 7994. |
The rate of photosynthesis declines in the presence of red light and is increased to normal level when red light is supplemented with |
| A. | Far-red light |
| B. | Orange light |
| C. | Blue light |
| D. | Ultraviolet light |
| Answer» D. Ultraviolet light | |
| 7995. |
Englemann (1882) observed accumulation of aerobic bacteria around blue and red illumination of chloroplast in green alga Cladophora. He therefore concluded that |
| A. | Chlorophyll absorbs green light |
| B. | Absorption spectrum of\[{{O}_{2}}\]evolution is blue and red |
| C. | \[{{O}_{2}}\]is released from\[{{H}_{2}}O\]in light reaction |
| D. | \[{{O}_{2}}\]is released from\[C{{O}_{2}}\]in light reaction |
| Answer» C. \[{{O}_{2}}\]is released from\[{{H}_{2}}O\]in light reaction | |
| 7996. |
Photosynthesis takes place |
| A. | Only in sunlight |
| B. | Only in yellow light |
| C. | In the visible light obtained from any source |
| D. | Only in very high intensity of light |
| Answer» D. Only in very high intensity of light | |
| 7997. |
The diagram below shows three plants with identical leaf surface area Assuming all other conditions were identical for all three plants, which of the plants would likely to photosynthesize slowest, and which fastest |
| A. | Y slowest, Z fastest |
| B. | Z slowest, X fastest |
| C. | X slowest, Z fastest |
| D. | Z slowest, Y fastest |
| Answer» E. | |
| 7998. |
Plants which can photosynthesize at as low temperature (upto\[-{{35}^{o}}C\]) are |
| A. | Conifers |
| B. | Blue-green algae |
| C. | Xerophytes |
| D. | Tropical plants |
| Answer» B. Blue-green algae | |
| 7999. |
What will be the effect when very high intensity of light is supplied to a photosynthesis system |
| A. | Process will increase |
| B. | Process will decrease |
| C. | Process will stop due to solarization |
| D. | None of the above |
| Answer» D. None of the above | |
| 8000. |
What will be the effect of intermittent light on photosynthesis |
| A. | It will increase |
| B. | It will decrease |
| C. | Will not be effected |
| D. | Process will stop |
| Answer» B. It will decrease | |