(c) The vast majority of bacteria are heterotrophs, i.e., they depend on other organisms or on dead organic matter for food.
NCERT Page-19/ N-13
Biological Classification
267254
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are categorised as
1 cyanobacteria
2 archaebacteria
3 chemosynthetic autotrophs
4 heterotrophic bacteria
Explanation:
(d) The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the heterotrophic bacteria. Lactobacillis bacteria convert milk into curd.
Biological Classification
267255
Foodcan be kept for a longer time in cold house than in normal conditions because
1 insect cannot enter.
2 bacterial multiplication stops.
3 bacterial multiplicationis reduced.
4 there is plasmolysis at low temperature.
Explanation:
(c) Food can be kept for a longer time in cold house than in normal condition because bacterial multiplication is reduced in cold house.
Biological Classification
267257
Choose the correct names of the different bacteria given below according to their shapes
1 A-Cocci, B - Bacilli, C -Spirilla, D – Vibrio
2 A - Bacilli, B - Cocci, C -Spirilla, D - Vibrio
3 A -Spirilla, B - Bacilli, C - Cocci, D - Vibrio
4 A -Spirilla, B - Vibrio, C - Cocci, D - Bacilli
Explanation:
(a) A - Cocci (spherical), B - Bacilli (rod shaped), C Spirilla (spiral), D - Vibrio (comma shaped). These are all the shapes of the bacteria.
(c) The vast majority of bacteria are heterotrophs, i.e., they depend on other organisms or on dead organic matter for food.
NCERT Page-19/ N-13
Biological Classification
267254
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are categorised as
1 cyanobacteria
2 archaebacteria
3 chemosynthetic autotrophs
4 heterotrophic bacteria
Explanation:
(d) The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the heterotrophic bacteria. Lactobacillis bacteria convert milk into curd.
Biological Classification
267255
Foodcan be kept for a longer time in cold house than in normal conditions because
1 insect cannot enter.
2 bacterial multiplication stops.
3 bacterial multiplicationis reduced.
4 there is plasmolysis at low temperature.
Explanation:
(c) Food can be kept for a longer time in cold house than in normal condition because bacterial multiplication is reduced in cold house.
Biological Classification
267257
Choose the correct names of the different bacteria given below according to their shapes
1 A-Cocci, B - Bacilli, C -Spirilla, D – Vibrio
2 A - Bacilli, B - Cocci, C -Spirilla, D - Vibrio
3 A -Spirilla, B - Bacilli, C - Cocci, D - Vibrio
4 A -Spirilla, B - Vibrio, C - Cocci, D - Bacilli
Explanation:
(a) A - Cocci (spherical), B - Bacilli (rod shaped), C Spirilla (spiral), D - Vibrio (comma shaped). These are all the shapes of the bacteria.
(c) The vast majority of bacteria are heterotrophs, i.e., they depend on other organisms or on dead organic matter for food.
NCERT Page-19/ N-13
Biological Classification
267254
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are categorised as
1 cyanobacteria
2 archaebacteria
3 chemosynthetic autotrophs
4 heterotrophic bacteria
Explanation:
(d) The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the heterotrophic bacteria. Lactobacillis bacteria convert milk into curd.
Biological Classification
267255
Foodcan be kept for a longer time in cold house than in normal conditions because
1 insect cannot enter.
2 bacterial multiplication stops.
3 bacterial multiplicationis reduced.
4 there is plasmolysis at low temperature.
Explanation:
(c) Food can be kept for a longer time in cold house than in normal condition because bacterial multiplication is reduced in cold house.
Biological Classification
267257
Choose the correct names of the different bacteria given below according to their shapes
1 A-Cocci, B - Bacilli, C -Spirilla, D – Vibrio
2 A - Bacilli, B - Cocci, C -Spirilla, D - Vibrio
3 A -Spirilla, B - Bacilli, C - Cocci, D - Vibrio
4 A -Spirilla, B - Vibrio, C - Cocci, D - Bacilli
Explanation:
(a) A - Cocci (spherical), B - Bacilli (rod shaped), C Spirilla (spiral), D - Vibrio (comma shaped). These are all the shapes of the bacteria.
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Biological Classification
267253
The vast majority of bacteria are:
1 Photosynthetic Autotrophs
2 Chemosynthetic Autotrophs
3 Heterotrophs
4 both $a$ and $b$
Explanation:
(c) The vast majority of bacteria are heterotrophs, i.e., they depend on other organisms or on dead organic matter for food.
NCERT Page-19/ N-13
Biological Classification
267254
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are categorised as
1 cyanobacteria
2 archaebacteria
3 chemosynthetic autotrophs
4 heterotrophic bacteria
Explanation:
(d) The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the heterotrophic bacteria. Lactobacillis bacteria convert milk into curd.
Biological Classification
267255
Foodcan be kept for a longer time in cold house than in normal conditions because
1 insect cannot enter.
2 bacterial multiplication stops.
3 bacterial multiplicationis reduced.
4 there is plasmolysis at low temperature.
Explanation:
(c) Food can be kept for a longer time in cold house than in normal condition because bacterial multiplication is reduced in cold house.
Biological Classification
267257
Choose the correct names of the different bacteria given below according to their shapes
1 A-Cocci, B - Bacilli, C -Spirilla, D – Vibrio
2 A - Bacilli, B - Cocci, C -Spirilla, D - Vibrio
3 A -Spirilla, B - Bacilli, C - Cocci, D - Vibrio
4 A -Spirilla, B - Vibrio, C - Cocci, D - Bacilli
Explanation:
(a) A - Cocci (spherical), B - Bacilli (rod shaped), C Spirilla (spiral), D - Vibrio (comma shaped). These are all the shapes of the bacteria.
