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- Question
What is the shortest phase of the cell cycle?
Options- A. M
- B. G1
- C. S
- D. G2
- Correct Answer
- M
ExplanationLongest 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 - ProphaseShortest Phase - Anaphase
- 1. Nitrogen Fixation is carried out primarily by
Options- A. Plants
- B. Humans
- C. Consumers
- D. Bacteria Discuss
- 2. Nucleoli are present during
Options- A. prophase
- B. anaphase
- C. interphase
- D. prometaphase Discuss
- 3. What are the three parts of the Nucleotide? Discuss
- 4. At what temperature do pathogenic bacteria grow best in food?
Options- A. 5 to 15 degrees Celsius
- B. 15 to 25 degrees Celsius
- C. 20 to 45 degrees Celsius
- D. 40 to 65 degrees Celsius Discuss
- 5. How many Nucleotides make up a Codon?
Options- A. 3
- B. 4
- C. 5
- D. 6 Discuss
- 6. Oxygen in our blood is transported by a protein named
Options- A. keratin
- B. myoglobi
- C. collagen
- D. haemoglobin Discuss
- 7. 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
- 8. 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
- 9. Is a mushroom an autotroph?
Options- A. TRUE
- B. FALSE Discuss
- 10. Nitrogenous bases in DNA and RNA?
Options- A. Adenine
- B. Cytosine
- C. Guanine
- D. All the above Discuss
Biology problems
Search Results
Correct Answer: Bacteria
Explanation:
The process by which bacteria convert nitrogen gas (N2) into ammonia (NH3) is called Nitrogen Fixation.
The conversion of nitrogen from one form to another in the nitrogen cycle is carried out primarily by Nitrogen Fixing Bacteria such as Azotobacter.
Correct Answer: interphase
Explanation:
Nucleoli are present during Interphase.
Chromosomes become visible during Prophase.
Centromeres divide and sister chromatids become full-fledged chromosomes during Anaphase.
Spindle fibers attach to kinetochores during Prometaphase.
Correct Answer: Nucleotides are the building blocks of the DNA and RNA used as genetic material Nucleotides also are used for cell signaling and to transport energy throughout cells Both deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are made up of nucleotides which consist of three parts:: 1 Nitrogenous Base 2 Pentose Sugar 3 Phosphate Group
Correct Answer: 20 to 45 degrees Celsius
Explanation:
The Bacteria that causes Food Borne illness are called Food Borne Pathogens. Most of the pathogens are mesophilic in nature, optimum temperature may be around 20-45 degree celsius. This range of temperatures is often called the "Danger Zone." Dry foods do not support the growth of bacteria.
In order to kill pathogenic bacteria you need temperatures above 74ºC. Temperature is the easiest factor to control in order to prevent bacterial growth.
Correct Answer: 3
Explanation:
3 Nucleotides make up a Codon.
The nucleotide triplet that encodes an amino acid is called a codon.
Each group of three nucleotides encodes one amino acid.
Correct Answer: haemoglobin
Explanation:
Oxygen in our blood is transported by a protein named Haemoglobin.
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: appositional growth
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: All the above
Explanation:
Nitrogenous 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).
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