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- Question
Nitrogenous bases in DNA and RNA?
Options- A. Adenine
- B. Cytosine
- C. Guanine
- D. All the above
- Correct Answer
- All the above
ExplanationNitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base.
The nitrogenous bases in DNA are
Adenine (A),
Guanine (G),
Thymine (T), and
Cytosine (C).
Whereas the nitrogenous bases in RNA are the same, with one exception:
Adenine (A),
Guanine (G),
Uracil (U), and
Cytosine (C).
- 1. Is a mushroom an autotroph?
Options- A. TRUE
- B. FALSE Discuss
- 2. The process of bones increasing in width is known as
Options- A. appositional growth
- B. closing of the epiphyseal plate
- C. concentric growth
- D. long bones reaching adult length and width Discuss
- 3. One reason the skeletal system is important is because
Options- A. the skeletal system creates the connective tissue and tendons that allow the body to move
- B. the skeletal system is responsible for controlling functions of the entire body
- C. without the skeletal system, an individual would not have enough calcium to live
- D. the skeletal system is solely responsible for housing the body's immune system Discuss
- 4. Oxygen in our blood is transported by a protein named
Options- A. keratin
- B. myoglobi
- C. collagen
- D. haemoglobin Discuss
- 5. What is the shortest phase of the cell cycle?
Options- A. M
- B. G1
- C. S
- D. G2 Discuss
- 6. Excretion rates of drugs vary greatly depending upon
Options- A. type of drug
- B. medical condition of the person who took the drug
- C. Both A & B
- D. time at which drug was taken Discuss
- 7. The substrate of photorespiration is
Options- A. Glucose
- B. Pyruvic acid
- C. Glycolate
- D. Sucrose Discuss
- 8. The fundamental excitable cell in the nervous system is the
Options- A. Nephron
- B. Axon
- C. Neuron
- D. Dendrite Discuss
- 9. Which nutrient has forms most of our body weight?
Options- A. Water
- B. Fats
- C. Carbohydrates
- D. Proteins Discuss
- 10. Pollen is produced by the process of
Options- A. Mitosis
- B. Pollination
- C. Meiosis
- D. Fertilization Discuss
Biology problems
Search Results
Correct Answer: FALSE
Explanation:
Mushrooms are heterotrophs. They are not plants or autotrophs.
Every living thing that exists need energy in order to live. This energy ultimately comes from the sun, and only plants, or autotrophs, can directly use this energy to make food. Those organisms that cannot harness the sun's energy are known as heterotrophs.
Mushrooms belong to kingdom Fungi and are heterotrophs because they decompose and consume nutrients from the soil. They are not green so they cannot photosynthesize
For this reason, mushrooms and all other fungi are heterotrophs.
Correct Answer: appositional growth
Correct Answer: the skeletal system creates the connective tissue and tendons that allow the body to move
Explanation:
One reason the skeletal system is important is because the skeletal system creates the connective tissue and tendons that allow the body to move.
Correct Answer: haemoglobin
Explanation:
Oxygen in our blood is transported by a protein named Haemoglobin.
Correct Answer: M
Explanation:
Longest and shortest phases Of cell cycle:
Shortest Phase - M phase or Mitotic phase.
Longest phase - G1 phase of the Interphase
Longest and shortest phases During Mitosis:
Longest Phase - Prophase
Shortest Phase - Anaphase
Correct Answer: Both A & B
Correct Answer: Glycolate
Correct Answer: Neuron
Correct Answer: Water
Explanation:
Water is the important nutrient all organisms need. Humans has almost 60% of their body weight is water. Some organisms have 90% of their body weight is of water.
Correct Answer: Mitosis
Explanation:
Pollen is a male plant gamete. When microspores produced after meiosis process on microsporangia of male gametophyte undergo mitosis and forms pollen grains.
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